Hilton CSD Community Education

Thursday, August 16, 2012

Exercising in midlife protects heart, says research

Exercising in midlife protects heart, says research

By Michelle Roberts Health editor, BBC News online
Man gardening Gardening counts as moderate exercise

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Making sure you get enough exercise in midlife will help protect your heart, according to research.
Even those who make the switch in their late 40s and 50s can still benefit, the study of over 4,000 people suggests.
And it need not be hard toil in a gym - gardening and brisk walks count towards the required 2.5 hours of moderate activity per week, say experts.
But more work is needed since the study looked at markers linked to heart problems and not heart disease itself.
And it relied on people accurately reporting how much exercise they did - something people tend to overestimate rather than underestimate.

"This research highlights the positive impact changing your exercise habits can have on the future of your heart health,” said Maureen Talbot British Heart Foundation.

In the study, which is published in the journal Circulation, people who did the recommended 2.5 hours of exercise a week had the lower levels of inflammatory markers in their blood.  Inflammatory markers are important, say experts, because high levels have been linked to increased heart risk.

People who said they consistently stuck to the recommended amount of exercise for the entire 10-year study had the lowest inflammatory levels overall.

But even those who said they only started doing the recommended amount of exercise when they were well into their 40s saw an improvement and had lower levels of inflammation than people who said they never did enough exercise.

Exercise recommendations

  • Under-fives (once walking independently): three hours every day
  • Five to 18-year-olds: at least an hour a day of moderate to vigorous intensity physical activity, plus muscle strengthening activities three times a week
  • Adults (including over 65s): 150 minutes a week of moderate to vigorous intensity physical activity, plus muscle strengthening activities twice a week
The findings were unchanged when the researchers took into consideration other factors, such as obesity and smoking, that could have influenced the results in the group of UK civil servants who were included in the study.

Dr Mark Hamer, of University College London, who led the research, said: "We should be encouraging more people to get active - for example, walking instead of taking the bus. You can gain health benefits from moderate activity at any time in your life."
Maureen Talbot of the British Heart Foundation, which funded the work, said: "Donning your gardening gloves or picking up a paint brush can still go a long way to help look after your heart health, as exercise can have a big impact on how well your heart ages.

"This research highlights the positive impact changing your exercise habits can have on the future of your heart health - and that it's never too late to re-energise your life.
"However it's important not to wait until you retire to get off the couch, as being active for life is a great way to keep your heart healthy."
Posted by Hilton CSD at 11:27 AM No comments:
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Monday, April 2, 2012

A FINE BALANCE

Friday, March 30, 2012

Falling: We have nothing to fear but fear itself

By Moses Znaimer, Zoomer Magazine Toronto

I need to regain my balance. —Tiger Woods

Whenever I hear or think about the word “Falling,” the associations that flash into my mind are not all bad. There is, as it happens, a positive, exciting version of “Falling” to counteract the more mundane negative one. I’m speaking about love, of course, and the mysterious human mechanism that renders Vertigo in that realm (“falling in love”) sufficiently intoxicating that we seek it out, no matter how reckless or illogical the situation. Listen to Leonard Cohen’s “Crazy to Love You”, a cut on his just-out late-life masterpiece album, Old Ideas, and you’ll see what I mean. “Had to go crazy to love you,” he sings. “Had to let everything fall.” The singer has no choice in the matter, and neither – fortunately, I’d argue – do we. In matters of the heart, I’m all for the risk and passion of Falling. In matters physical, on the other hand, I’m far more pragmatic; and my watchword is Balance.

This year, if current trends continue, about a third of Canadians over the age of 65 who are still living at home will suffer a fall. Half these people will be injured in one way or another; 25 per cent of them significantly and, 20 per cent of those badly enough that they’ll end up in the hospital. They won’t be alone – almost 62 per cent of all injury-related hospitalizations for seniors are the result of falls. (Second only to car accidents, falls are implicated in an amazing 29 per cent of all injury-related hospitalizations for all Canadians.) Nine out of 10 hip fractures suffered by Canadians are caused by falls; and one out of five who break their hips will die within a year of the accident (U.S. figures, even more dire, suggest that a full 50 per cent of seniors who are hospitalized in that country because of falls will not be alive after a year). In other words, dangerous falls are tantamount to an epidemic in the aging population. The conventional reasons given for this are widely known: our bones become more brittle as we age, our muscles weaker and our spatial orientation (the sense of where we are) is diminished. But as undeniable as these deficits are, they’re more the cause of the injuries we suffer when we fall than the cause of falls themselves. The vast majority of the falls are actually the result of the malfunction of a critical “sense” with overtones as metaphysical and poetic as love: our sense of Balance.
Balance is defined physiologically as “the ability to maintain equilibrium against the force of gravity.” Essentially, to function smoothly in everyday life – let alone during athletics or exercise – it’s important that we not tip over. What grants us equilibrium is our ability to process stimuli from our inner ear, our eyes, our legs and our feet simultaneously. It’s an intricate enough process for a nine-year-old; for a 90-year-old, it can be a nightmare. This is because, as we age, the integration mechanisms we use to orient ourselves in space tend to break down.


This breakdown comes in different forms, says Dr. Bruce McFarlane, a 67-year-old family practitioner in Collingwood, Ont., who’s been involved in the study and treatment of balance issues for nearly 20 years. First are conditions associated with aging that can restrict blood flow to the brain and affect balance – “strokes, carotid artery blockage.” Then there’s diabetes, which “can result in a loss of sensation in the feet, which in turn can cause a loss of balance”; and medications themselves, “which we take more of as we age, particularly anti-infection medication like antibiotics.” Deteriorating vision can also affect balance, as can an erosion of our actual position sense, which lets us know, for instance, where our hand is in the dark. “When you reach a certain age,” says Dr. McFarlane, “you’ll notice that when you get up in the middle of the night, it’s way more difficult to get where you’re going than it used to be. Balance again.”

If that’s not enough, our muscle strength does indeed deteriorate as we get older (“It peaks at 40 and goes over a cliff at 60”), as does our flexibility, which restricts our ability to throw out an arm or hand to restore balance when we’re about to lose it. So it’s a tipsy world we’re contemplating, one that without intervention may only get unsteadier. That’s the bad news. The good news is there’s something we can do about it.

One of the most interesting and counter-intuitively simple treatments for a loss of balance is something called the Epley manoeuvre. The Epley is used specifically in cases of the inner ear disorder BPPV, or benign paroxysmal positional vertigo. The absence of balance is always paired with the presence of dizziness. In BPPV, which is more prevalent in older people, the spinning feeling occurs when the sufferer changes the position of his or her head, an action that can disrupt the fluid in our inner ear, which maintains our equilibrium.

In the Epley manoeuvre, the individual sits up straight, then lies back on her back, holds her head in a centred position, then turns to the right and to the left, and then moves back to a sitting position. Each pose is held for approximately 30 seconds and is intended to dislodge calcium particles called otoconia that adversely affect the inner-ear fluid. In romantic Vertigo, this would be like dislodging the object of our infatuation to regain emotional equilibrium. Both involve a kind of “rebooting” of our sense of balance. Success rates for the Epley in treating physical Vertigo due to BPPV range from 80 to 90 per cent.

More widely known in the treatment of balance problems in older people is Dr. McFarlane’s chosen discipline: the 108 moves, often beautiful and hypnotic, that make up Taoist tai chi, a martial arts-exercise discipline that dates from the second century AD. The moves come under a variety of evocative names: Hold the Ball, Turning the Wheel, Step Back to Repulse Monkey and Partition of the Wild Horse’s Mane. As New-Agey as the names are, several studies have shown the marked efficacy of tai chi in easing dizziness and aiding balance. (Of course, the Chinese have known about the therapeutic value of tai chi for millennia, but the sceptical Western mind generally demands “harder” data.)

The most renowned tai chi study was published in 1996 in the Journal of American Geriatric Society by Stephen Wolfe et al. One group of 200 subjects, average age mid-70s, did tai chi for 15 weeks, while another 200 people used a “balance plate,” a tilting platform that required subjects to shift their weight in order to keep a visible line in front of them level. The balance plate portion of the study, which was relatively expensive, tedious and required one-to-one supervision, resulted in no reduction in falls in the six months following the study. The tai chi portion which, with one instructor for a large group, was inherently cheaper and more fun, resulted in a 47 per cent reduction in falls over the next six months. The findings have been replicated several times over the past 15 years. Older people who do tai chi consistently experience less dizziness, more steadiness and improvements in all the balance-building factors: flexibility, lower body strength, position sense and alignment.

But when it comes to one of the greatest risk factors in our susceptibility to falls, our actual fear of falling itself, it’s helpful to return to the idea of “romantic” falling to understand the remedy. It seems reasonable for us to be more aware of the increased dangers of falling as we get older and to exercise extra caution to try to minimize the chances that we will fall. Concern and caution, you’d think, makes sense! But studies show that the more we give in to the Fear of Falling, the greater the likelihood that we will fall. Collected under this general apprehension is the fear of being hospitalized, of being embarrassed, of losing independence and, most acutely, the fear of having to move from home. The result, says Aysha Bindar, an advanced practice nurse currently working on balance treatment at Baycrest Home for the Aged in Toronto, is that people limit their activity. “They may not drink as much fluid as they need to,” she says, “so they don’t have to go to the bathroom as often. They avoid social gatherings, where there may be large numbers of people and furniture to trip over. The fear of falling isolates people and makes them less physically active, which leads to muscle atrophy and depression, which, of course, then puts them at greater risk for falling. And this happens not just in retirement homes but in the community at large.”

So by attempting to overprotect ourselves, we leave ourselves open to greater injury. Isn’t this precisely what happens in the emotional world? The more we attempt to insulate ourselves from the hazards of love – romantic or platonic – the more we leave ourselves open to emotional atrophy and greater depression.
In other words, in trying to keep ourselves safe, we court a fate worse than what we fear. To stay “upright” in this life, we need to cultivate two kinds of balance: physical and emotional. Without risk, we risk falling more and living less, forfeiting the ever more precious moments that make our lives worthwhile.

As Mary Pickford, the Canadian-born America’s Sweetheart of the silent screen, once said: “You may have a fresh start any moment you choose, for this thing we call ‘failure’ is not the falling down but the staying down.”

Zoomer Magazine

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Friday, February 24, 2012

How Exercise Fuels the Brain



February 22, 2012, 12:01 am
How Exercise Fuels the Brain

By GRETCHEN REYNOLDS
New York Times

Does exercise keep your brain running?

Moving the body demands a lot from the brain. Exercise activates countless neurons, which generate, receive and interpret repeated, rapid-fire messages from the nervous system, coordinating muscle contractions, vision, balance, organ function and all of the complex interactions of bodily systems that allow you to take one step, then another.
This increase in brain activity naturally increases the brain’s need for nutrients, but until recently, scientists hadn’t fully understood how neurons fuel themselves during exercise. Now a series of animal studies from Japan suggest that the exercising brain has unique methods of keeping itself fueled. What’s more, the finely honed energy balance that occurs in the brain appears to have implications not only for how well the brain functions during exercise, but also for how well our thinking and memory work the rest of the time.
For many years, scientists had believed that the brain, which is a very hungry organ, subsisted only on glucose, or blood sugar, which it absorbed from the passing bloodstream. But about 10 years ago, some neuroscientists found that specialized cells in the brain, known as astrocytes, that act as support cells for neurons actually contained small stores of glycogen, or stored carbohydrates. And glycogen, as it turns out, is critical for the health of cells throughout the brain.
In petri dishes, when neurons, which do not have energy stores of their own, are starved of blood sugar, their neighboring astrocytes undergo a complex physiological process that results in those cells’ stores of glycogen being broken down into a form easily burned by neurons. This substance is released into the space between the cells and the neurons swallow it, maintaining their energy levels.
But while scientists knew that the brain had and could access these energy stores, they had been unable to study when the brain’s stored energy was being used in actual live conditions, outside of petri dishes, because brain glycogen is metabolized or burned away very rapidly after death; it’s gone before it can be measured.
That’s where the Japanese researchers came in. They had developed a new method of using high-powered microwave irradiation to instantly freeze glycogen levels at death, so that the scientists could accurately assess just how much brain glycogen remained in the astrocytes or had recently been used.
In the first of their new experiments,
published last year in The Journal of Physiology, scientists at the Laboratory of Biochemistry and Neuroscience at the University of Tsukuba gathered two groups of adult male rats and had one group start a treadmill running program, while the other group sat for the same period of time each day on unmoving treadmills. The researchers’ aim was to determine how much the level of brain glycogen changed during and after exercise.
Using their glycogen detection method, they discovered that prolonged exercise significantly lowered the brain’s stores of energy, and that the losses were especially noticeable in certain areas of the brain, like the frontal cortex and the hippocampus, that are involved in thinking and memory, as well as in the mechanics of moving.
The findings of their subsequent follow-up experiment, however, were even more intriguing and consequential. In that study, which
appears in this month’s issue of The Journal of Physiology, the researchers studied animals after a single bout of exercise and also after four weeks of regular, moderate-intensity running.
After the single session on the treadmill, the animals were allowed to rest and feed, and then their brain glycogen levels were studied. The food, it appeared, had gone directly to their heads; their brain levels of glycogen not only had been restored to what they had been before the workout, but had soared past that point, increasing by as much as a 60 percent in the frontal cortex and hippocampus and slightly less in other parts of the brain. The astrocytes had “overcompensated,” resulting in a kind of brain carbo-loading.
The levels, however, had dropped back to normal within about 24 hours.
That was not the case, though, if the animals continued to exercise. In those rats that ran for four weeks, the “supercompensation” became the new normal, with their baseline levels of glycogen showing substantial increases compared with the sedentary animals. The increases were especially notable in, again, those portions of the brain critical to learning and memory formation — the cortex and the hippocampus.
Which is why the findings are potentially so meaningful – and not just for rats.
While a brain with more fuel reserves is potentially a brain that can sustain and direct movement longer, it also “may be a key mechanism underlying exercise-enhanced cognitive function,” says Hideaki Soya, a professor of exercise biochemistry at the University of Tsukuba and senior author of the studies, since supercompensation occurs most strikingly in the parts of the brain that allow us better to think and to remember. As a result, Dr. Soya says, “it is tempting to suggest that increased storage and utility of brain glycogen in the cortex and hippocampus might be involved in the development” of a better, sharper brain.
Given the limits of current technologies, brain glycogen metabolism cannot be studied in people. But even so, the studies’ findings make D.I.Y. brain-fuel supercompensation efforts seem like an attractive possibility. And, according to unpublished data from Dr. Soya’s lab, the process may even be easy.
He and his colleagues have found that “glycogen supercompensation in some brain loci” is “enhanced in rats receiving carbohydrates immediately after exhaustive exercise.” So for people, that might mean that after a run or other exercise that is prolonged or strenuous enough to leave you tired, a bottle of chocolate milk or a banana might be just the thing your brain is needing.
Posted by Hilton CSD at 8:39 AM No comments:
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Wednesday, February 1, 2012

91-year-old yoga teacher asks, 'Why should I quit?'




Bernice Bates, who at 91 is officially the world's oldest yoga instructor, teaches in front of a yoga class, as she's been doing since 1960.
By Lisa Flam TODAY.com contributor

Before her feet even touch the floor each morning, Bernice Bates is practicing yoga. While still in bed, she does her vinyasa, a series of seven or eight postures that gets her blood flowing. She puts her arms above her head for a stretch and a yawn, pulls her knees to her chest, “walks” the ceiling with her feet and stretches her shoulders and hands. “By the time you’re through — it takes about eight minutes — you’re ready to walk, instead of slopping around,” Bates said.
“You can walk to the kitchen, to the bathroom, whatever your procedure is and not sort of drag yourself and say, ‘I don’t want to do this. I don’t want to do that.’ You’re ready to go.” Yoga has been a way of life for Bates, 91, for more than half her life: She began practicing and teaching hatha yoga in about 1960. In a fitting tribute to her decades of helping others learn her passion, she recently won the distinction of the Guinness World Record holder of oldest yoga instructor. Guinness says she is the oldest yoga instructor to complete the complex verification process.
It’s an honor, the humble yogi feels, that isn’t hers alone. “I don’t have this reward by myself,” she said. “I share it with all the students I’ve taught through the years.” Bates credits yoga with keeping her flexible, fit and healthy. “I think yoga is the best exercise there is,” says Bates, who has always been active and still swims laps. “I’ve never had anything I had to go to the doctor for, except checkups,” says Bates, who tips the scale at 105 pounds and is about 5 foot, 2 inches tall. “That should say something.” Yoga involves the whole body — muscles, ligaments, organs, she says, and gives you energy without exhausting your body. “You’re not just standing on a treadmill and going, going, going and you get off and can hardly walk,” she says. “Yoga itself means yoke, that’s to join. We join our mind, our body and our spirit in everything we do.
“Yoga gives you flexibility like you’ve never had before, and it makes you healthy because you’re working on the whole body, inside and out,” she said. Bates, who has instructed children and adults, now leads a weekly one-hour class nine months a year at the Mainlands Retirement Community Center in Pinellas Park, Fla., where she lives. Most students are in their 60s and 70s, though she has two fellow nonagenarians and several students in their 80s. She leads her students through 10 to 12 poses and ends with relaxation. “We go over our whole body and tense each part, then we relax,” she said. Bernie, as her students call her, provides handouts so they can practice at home. And when they can finally do something they once couldn’t, like touch their toes, “it makes me feel like it’s worthwhile,” she says. Some students have been with her for the 15 years she’s taught at Mainlands, and they all adapt to the class as they grow on in years. Some participate while sitting on chairs. “It’s for everybody,” she says enthusiastically about yoga.
“There’s thousands of postures. You can pick and choose. You do what you can. “It’s non-competitive, which is the best thing about it,” she said. Bates is a widow of eight years and a mother of three, grandmother of seven and great-grandmother of three. Yoga has enhanced her full life. “It just encouraged me to keep going and it made my life better,” Bates said. “You’re active, so you don’t gain 100 pounds.” She lives alone and tends to her flower garden, does the housework and likes to rearrange her furniture, so she’s always moving it around.
“If I didn’t keep myself in shape, I wouldn’t be able to do it at 91,” she says. Her decades of physical activity have only added to her strong Methodist faith. “Anything you do for your body that’s good is going to enhance improvement in your religion too,” she said. “You get more faith that way.” With students seeking her guidance each week, the world’s oldest yoga teacher is going to keep on teaching.
“Why should I quit? she asks. “As long as I can do it and be a help to someone else, I’ll just stay as long as I can. I get a joy out of seeing someone learning.”
Posted by Hilton CSD at 12:27 PM No comments:
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Tuesday, November 22, 2011

How Meditating may help your Brain

November 21st, 2011
How meditating may help your brain

When you're under pressure from work and family and the emails don't stop coming, it's hard to stop your mind from jumping all over the place.

But scientists are finding that it may be worth it to train your brain to focus on something as simple as your breath, which is part of mindfulness meditation.

A new study, published in the Proceedings of the National Academy of Sciences, is the latest in a hot emerging field of research examining how meditation relates to the brain. It shows that people who are experienced meditators show less activity in the brain's default mode network, when the brain is not engaged in focused thought.

The default mode network is associated with introspection and mind wandering. Typically, drifting thoughts tend to focus on negative subjects, creating more stress and anxiety. It has also been linked to attention-deficit hyperactivity disorder and Alzheimer's disease.

Researchers looked at experienced meditators and trained novices. There were 12 in the "experienced" category, with an average of more than 10,000 hours of mindfulness meditation experience (Malcolm Gladwell's "Outliers" suggests that it takes 10,000 hours to be an expert at something), and 12 healthy volunteers who were novices in meditation.

Each volunteer was instructed to engage in three types of meditation: concentration (attention to the breath), love-kindness (wishing beings well) and choiceless awareness (focus on whatever comes up). Scientists looked at their brain activity during these meditations with functional magnetic resonance imaging (fMRI).

Across all of these types of meditation, the experienced meditators showed less activity in the default mode network than in the novices. The experienced participants also reported less mind wandering than the novices. Interestingly, experienced meditators also showed increased connectivity between certain brain networks during meditation and non-meditation.

"It doesn't matter what they're doing, they have an altered default mode network," said Dr. Judson Brewer, medical director of the Yale University Therapeutic Neuroscience Clinic and lead author of the study. "We were pretty excited about that, because it suggests that these guys are paying attention a lot more."

From this particular study, researchers can't say whether meditating is beneficial to the brain. But, viewed in conjunction with other studies showing the positive effects of mindfulness training for depression, substance abuse, anxiety and pain disorders, it seems to have promise. Also, a 2010 study found that people tend to be more unhappy when they their mind is wandering.

"Putting all those together, we might be able to start get at what the mechanisms of mindfulness are," Brewer said.
But the study does not address the issue of cause: Is meditation changing the brain, or do people who already have these brain patterns get interested in meditation?

"Emerging data from our group and others suggests that some things thought to be result of meditation might be cause of meditation," said Dr. Charles Raison, associate professor in the Department of Psychiatry at the University of Arizona College of Medicine.

If some people are just better at keeping their minds from wandering, that would also be consistent with the Buddhist idea that your capabilities are the result of your Karmic path, so meditation may be better suited to some people than others, Raison said.

Someday, if brain scans become cheap enough, one day there might be a test to see who can benefit most from mindfulness training, Raison said.

In the meantime, scientists should explore these open questions by doing longitudinal studies, Raison said. That would involve assigning some people to meditate and some people to not meditate, and following the groups over time to see whether a change in brain activity patterns is visible.

Post by: Elizabeth Landau - CNN.com Health Writer/Producer Filed under: Brain • Meditation • Psychology
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Wednesday, November 2, 2011

A Cure For Burnout and Stress–As Simple as a Walk In The Woods!

A Cure For Burnout and Stress–As Simple as a Walk In The Woods!

November 15, 2009 by workingwellresources

Aside from achieving better fitness by hiking and exercising in the forest, there is ample evidence that exercising or interacting with nature (even having live plants in your work environment) helps combat burnout, reduces mental stress and reduces mental fatigue.

Read on for more about this research and it’s implications for our daily lives.
A Walk in the Woods
By John Lofy in Michigan Today, a publication of the University of Michigan, University of Michigan School of Natural Resources

Professor Rachel Kaplan’s office at U-M’s School of Natural Resources and Environment looks out over a large oak tree. Potted plants crowd her window sill. Beyond these small patches of nature loom the buildings of central campus. But, she says, a little bit of nature goes a long way.
She would know. Kaplan and her husband, professor Stephen Kaplan, were among the first academics to study the psychological benefits of nature. Colleagues and collaborators for decades, they have shown that natural settings—trees, grass, gardens, and the like—have a profound, positive impact on both mental and physical health.

Both Kaplans hold joint appointments: Rachel in SNRE and Psychology, Stephen in Psychology and Electrical Engineering and Computer Science. They both take particular pride in graduate students they have mentored over the years. Students working with the Kaplans have made some striking discoveries:

• Studies by Bernadine Cimprich showed that the psychological health of cancer patients “improved dramatically” after they spent 20 minutes a day, three days a week, doing restorative activities such as gardening or walking in the woods. A control group that did not do the activities showed notably less improvement.
• Studies by Frances Kuo and William Sullivan found that residents of public housing projects who live near trees “showed all kinds of benefits,” says Stephen. “More civility, less aggression—and girls were more likely to study” their schoolwork.
• A study of AIDS caregivers by Lisa Canin found that the single most powerful factor in avoiding stress-related burnout was “locomotion in nature”—such as walking, running, biking, or canoeing. (The quickest route to burnout was watching television.)
Better yet, says Rachel, the natural setting “doesn’t have to be big or pristine” to have a positive effect. “Most of all, it has to be nearby.” A study by Ernest Moore of prisoners in Milan, Michigan, showed that simply having a view of farmland from a prison cell reduced inmates’ need for health care.

What’s so powerful about nature? Stephen theorizes that it comes down to brain function. The source of much mental distress, he says, is overuse of “directed attention”—such as concentrating on work. “Sustained directed attention is difficult and fatiguing. When people talk about mental fatigue, what is actually fatigued is not their mind as a whole, but their capacity to direct attention.” And it can make people “distractible and irritable.”

To escape the discomforts of mental fatigue, people often turn to activities that “capture” their attention. They find external events to distract them, so they don’t have to concentrate so hard. Watching TV, for instance, requires little willpower: the programs do the work, and the brain follows along.

Watching t.v. doesn't allow for mental rest. Similarly, says Stephen, “many people find an auto race fascinating.” Fast motion, loud noises, and smells captivate the brain. The Kaplans refer to activities like watching TV or sporting events as “hard fascination.” The stimuli are loud, bright, and commanding. The activities are engaging and fun, but they don’t allow for mental rest.

Soft fascination, on the other hand, is the kind of stimulation one finds on, say, a stroll along the beach or in the woods. Nothing overwhelms the attention, says Stephen, “and the beauty provides pleasure that complements the gentle stimulation.” The brain can soak up pleasing images, but it can also wander, reflect, and recuperate.

Most people, say the Kaplans, intuitively know this. But often, they either don’t do it, or they may not have opportunities to get out in nature. That’s too bad, because the Kaplans have shown that if you’re upset, frazzled, or suffering, an easygoing walk in the woods or even along a tree-lined street is one of the best things you can do for yourself.

Read more about the Kaplans and their research here.

Ways You Can Increase Your Interaction with Nature
• Plant a garden. Even in the city if you have an outdoor porch you can plant a small garden in pots and window boxes. Weeding the garden, “playing” in the dirt, and taking the time to nurture your plants, nurtures your own nervous system and allows you some peaceful moments free from everyday stress.
• Bring live plants into your workspace. Live plants help clean the air and make your environment naturally beautiful and less stressful.
• Go for regular walks in nearby forest preserves or parks.
• Make after dinner walks around your neighborhood part of your family routine. This is a great way to spend quality time with friends and family, get regular exercise and get away from the stress of the TV, telephone and temptations of junk food.
• Volunteer in a nearby community garden.
• Try snow shoeing, sledding, cross country skiing or walking in the fresh fallen winter snow. (It’s coming soon so be ready with warm layers and waterproof hiking boots!)
• When possible, alter your driving route to go through area parks, forest preserves or stretches of the road that gives you a view of a lake, trees and natural bodies of water like rivers and ponds.

Fall Colors
• Plant an indoor herb garden in a well lit window for the winter. It gives you the double benefit of fresh herbs for your meals and the moments of stress relief you get when tending your mini-garden.
• As much as possible, exercise outdoors. Run and hike in the park or forest preserves.
• When time permits, work outdoors. Take
your laptop to the beach or park. In inclement weather find malls or indoor public spaces with plants and trees.
Posted by Hilton CSD at 7:48 AM 1 comment:
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Wednesday, September 21, 2011

The Meditating Brain

The Meditating Brain: Express Version By Wray Herbert

in the Journal of the Association of Psychological Science

I have been experimenting with mindfulness meditation recently. Originally a Buddhist practice, mindfulness meditation focuses on moment-to-moment awareness, of one’s body and its sensations and one’s immediate surroundings. When thoughts intrude on this aware state—as they always do—you gently let them go as you return to the moment.

It’s very calming—and really hard. It’s hard because the mind does not want to stop churning out thoughts. I’m told that with time and practice, meditation becomes easier, and what’s more that it brings a variety of emotional and health benefits. Those testimonials are why I’m doing this, but I confess the prospect is daunting. Expert Buddhist practitioners log some 10,000 hours of training, and even neophytes should expect to log 70 or more hours of training, over months, before seeing any noticeable benefits. So imagine how encouraged I was to come across a recent study that seems designed for impatient souls like me. Psychological scientist Christopher Moyer, and a large group of colleagues at the University of Wisconsin—Stout, designed a brain study to see if there might be at least some benefit after a very brief period of meditation training. It’s a small study, and the first of its kind.

The scientists recruited a group of volunteers, ranging in age from 18 to 73, all interested but inexperienced at meditation practice. The volunteers completed an emotional inventory before starting the study, and they also closed their eyes and tried to meditate for 18 minutes on their own. All they were told was to focus on their breathing, and if thoughts intruded, to re-focus their attention on their breathing. During this trial, they were hooked up to an EEG, which measured their baseline brain activity. The participants had volunteered in exchange for training by experienced instructors, and half were immediately enrolled in such training. The others were wait-listed; they received training later on, but served as controls for the brain study. In the actual study, the meditation trainees were offered nine 30-minute sessions over five weeks, each session consisting of a short lesson and five to 20 minutes of “sitting.” After the five weeks, all of the volunteers—trainees and controls—repeated the 18-minute meditation trial, again hooked up to the EEG.

The results got my attention. As reported on-line in the journal Psychological Science, the trainees ended up averaging fewer than seven sessions, and meditated at home just a couple times a week—so they only got about six hours of training and practice in all over the five weeks. That comes to minutes a day, not hours. But even with this very modest commitment of time, the novices showed a significant shift in brain activity from their right to their left frontal hemispheres over the course of the study. Such brain asymmetry is associated with a shift to more positive emotional processing. In short, the promised benefits of meditation may be much more accessible than previously thought. It’s not clear from these results whether these brain changes are lasting, or if they are limited to actual meditation and its immediate aftermath. I also anticipate that some purists will object to the whole idea that beginners would want to get something for nothing. But really, for newcomers to a practice so unfamiliar, even evidence of a temporary shift away from negative emotions is something to build on, and keep us coming back.

Wray Herbert’s book, On Second Thought, is out in paperback.

Excerpts from his two blogs—“Full Frontal Psychology” and “We’re Only Human”—appear regularly in The Huffington Post and in Scientific American Mind. Published September 21, 2011Tags: Brain, brain asymmetry, health psychology, meditation, positive emotions
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Friday, September 9, 2011

Ride a Bike!




Cycling is good for you. Start now, even if you’ve done nothing for years says Lloyd Lemons, author of Cycling Nirvana blog.


I’m not a light-weight guy, but I am lighter than I was, say five years ago, because of cycling. Thirty pounds lighter. I’m not getting any younger either. But today, I feel like I’m the fittest I’ve ever been in my life.It’s not easy to start exercising when you’ve done nothing for years. It’s tough… damn tough. And cycling is no different. I witnessed a conversation a couple of years ago when I was working in the local bike shop. The sales clerk, a tall, slender, athletic looking woman, who probably weighed about 105 pounds soaking wet, was helping this middle-aged guy make his first bike purchase since he was a kid. He was average height, and looked like he might weigh about 230 pounds. He was not an athlete. He looked tired, overwhelmed by the technological advances made in bikes over the years, and somewhat intimidated by the environment he found himself in. He knew he was out of shape, and wanted to do something about it. But here was this svelte young woman trying to sell him a high-end road bike, while preaching to him about the benefits of cranking it up every day. He walked out of the store that day without buying a bike and I’m guessing, today he’s still overweight and tired, because he saw his quest for fitness as insurmountable.


Your fitness goals are not insurmountable. You just have to take one step at a time—your step—not a step patterned after someone else. Here are a few tips to get you started on the bike, even if you haven’t exercised in years. There’s nothing scientific here, just a method that has worked for many. If you’re not sure of your health, see your doctor first and take her advice.


1. Cleanse the mind Get rid of all the imagery you may have of the strong, skinny, fit people that haunt your subconscious. Also, forget about all the cool new equipment that’s on the market today.
2. Get a bike Virtually any bike will do. It doesn’t have to be fancy. It can be ugly. It can be rusty. It could be a model designed for the opposite sex. It doesn’t matter at this point. Borrow one, buy one from the police auction,
buy one from eBay, rent one, but get a bike that fits you comfortably, and ride it.
3. Ride your bike 3 times a week Wear a helmet, and ride around the neighborhood for 20 to 30 minutes. Don’t push it, ride at a pace you’re comfortable with, and (this is important!), pay no attention to the skinny/fast cyclists passing you. How’s that feel? Makes you feel like a kid again, doesn’t it?
4. Go farther By the third week you will be able to ride longer. Maybe 45 minutes to an hour. Try to pedal more and coast less. Try to push your limit a little. You’re feeling stronger already. You’re sleeping better. Weigh in. You’ve probably already lost a pound or two. You’re even considering a venue change from the neighborhood to an area with more open spaces, and you’re already thinking of getting a better bike.
5. Don’t stop now! By the fifth week, you’ve added a longer weekend ride to your regimen. You ride to the coffee shop on Saturday morning, and meet some friends who share your fitness intentions, and you talk about bikes, safety and rules of the road. And you can’t explain it, but your mind seems to be thinking a little clearer these days. You’ve been looking at the bikes owned by other riders and you’ve learned a lot. There are all types of bikes for all types of riding, and you’re getting close to finding one that suits you better than your old clunker.
6. Have fun! You’ve discovered that cycling is good, and good for you. After two months of your bicycle adventure, you’ve discovered that you’re really having fun. You’re riding dozens of miles a week. You’ve lost weight, you’ve met some really nice folks… and you’re old bike just isn’t keeping up with your adventurous spirit. And that’s a good thing. Now is the time to visit a respectable bike shop. (Your cycling friends gave you a recommendation.) Explain to the sales person the type of riding you want to do. Share with him your cycling ideas for the coming year, your fitness objectives, and the budget you’ve established for your new bike. A good shop will measure your body and sell you the bike that best suits your wishes. He may offer a class on safe riding. Take it. He may offer a class on bike maintenance. Take it too, both are invaluable.You are now a cyclist. Go ride with your friends. Conquer the roads and trails. Your couch potato days will soon be a distant memory. And remember the wise words of the Chinese philosopher, Lao-tzu: A journey of a thousand miles begins with a single step. Sign up now for Early Evening Bicycling through Community Education.
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Tuesday, August 16, 2011

15-minute daily exercise is 'bare minimum for health'


jogger
Moderate exercise does not have to be a long jog, it could be a brisk walk to work or taking the stairs


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Just 15 minutes of exercise a day can boost life expectancy by three years and cut death risk by 14%, research from Taiwan suggests.


Experts in The Lancet say this is the least amount of activity an adult can do to gain any health benefit.


This is about half the quantity currently recommended in the UK.


Meanwhile, work in the British Journal of Sports Medicine suggests a couch potato lifestyle with six hours of TV a day cuts lifespan by five years.


The UK government recently updated its exercise advice to have a more flexible approach, recommending adults get 150 minutes of activity a week.


This could be a couple of 10-minute bouts of activity every day or 30-minute exercise sessions, five times a week, for example.




You can get good gains with relatively small amounts of physical activity. More is always better, but less is a good place to start”

End Quote Prof Stuart Biddle, an expert in exercise psychology at Loughborough University

Experts say this advice still stands, but that a minimum of 15 minutes a day is a good place to start for those who currently do little or no exercise.


The Lancet study, based on a review of more than 400,000 people in Taiwan, showed 15 minutes per day or 90 minutes per week of moderate exercise, such as brisk walking, can add three years to your life.


And people who start to do more exercise tend to get a taste for it and up their daily quota, the researchers from the National Health Research Institutes, Taiwan, and China Medical University Hospital found.


More exercise led to further life gains. Every additional 15 minutes of daily exercise further reduced all-cause death rates by 4%.


And research from Australia on health risks linked to TV viewing suggest too much time sat in front of the box can shorten life expectancy, presumably because viewers who watch a lot of telly do little or no exercise.


England's Chief Medical Officer Sally Davies said: "Physical activity offers huge benefits and these studies back what we already know - that doing a little bit of physical activity each day brings health benefits and a sedentary lifestyle carries additional risks."



Exercise recommendations



  • Under-fives (once walking independently): three hours every day

  • Five to 18-year-olds: at least an hour a day of moderate to vigorous intensity physical activity, plus muscle strengthening activities three times a week

  • Adults (including over 65s): 150 minutes a week of moderate to vigorous intensity physical activity, plus muscle strengthening activities twice a week

She added: "We hope these studies will help more people realise that there are many ways to get exercise, activities like walking at a good pace or digging the garden over can count too."


Prof Stuart Biddle, an expert in exercise psychology at Loughborough University, said a lot of people in the UK now fall into the category of inactive or sedentary.


He said that aiming for 30 minutes of exercise a day on pretty much every day of the week might seem too challenging for some, but starting low and building up could be achievable.


"You can get good gains with relatively small amounts of physical activity. More is always better, but less is a good place to start."


from the BBC - by Michelle Roberts Health reporter, BBC News Aug. 15, 2011

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Saturday, July 30, 2011

Exercise can restore a sense of power in medical treatment

The last thing people undergoing treatment for cancer may be thinking about is exercise. Maybe they should reconsider.

"A lot of times cancer patients feel they lose control," said Karen Mustian, director of the Physical Exercise, Activity and Kinesiology Laboratory [PEAK] at the University of Rochester Medical Center.

Exercise can restore a sense of power.

"It can help them get through any treatment with less side effects and trouble," said Mustian, who has researched the effects. "They'll be able to adhere to treatment better and recover quicker."

Mustian will talk about the benefits of exercise for cancer patients and survivors at the American Cancer Society's I Can Cope monthly education session at 6:30 p.m. Mondays at St. Thomas' Episcopal Church, 2000 Highland Ave, Rochester NY.

Those benefits can accrue to anyone regardless of where they find themselves in their recovery. "They could have just found out and are trying to figure out what to do or it could be 10 years ago," she said.

Mustian also is assistant professor in the Department of Radiation Oncology at the Wilmot Cancer Center and assistant professor in the Department of Community and Preventive Medicine. She holds a doctorate in exercise physiology and psychology, and has published extensively in scientific journals on exercise and quality of life and management of side effects for cancer patients.

She was the lead investigator in a nationwide clinical trial of the benefits of gentle yoga for people who had completed radiation and chemotherapy. She will present new, objective data that back up participants' reports of improved sleep and discuss ongoing trials and recruitment criteria.
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Friday, July 15, 2011

Meditation beats medication



7 Fascinating Facts About Meditation

The Huffington Post - Riddhi Shah First Posted: 7/15/11


Over the last decade, interest in the science of meditation has skyrocketed. We now know more than ever before about just how meditation affects our minds and bodies. Increased research has led to a plethora of fascinating discoveries: Take, for instance, the fact that meditation can prevent heart disease. Or that it reduces stress. Or that it can significantly lessen ADHD symptoms, and in many cases, beats medication.


Still, much is left to be discovered. We know more but we definitely don't know everything. While we wait for science to catch up with ancient wisdom, check out this slideshow on the complex effects of the simple act of focused breathing.

Quite literally, sustained meditation leads to something called neuroplasticity, which is defined as the brain's ability to change, structurally and functionally, on the basis of environmental input. For much of the last century, scientists believed that the brain essentially stopped changing after adulthood. But research by University of Wisconsin neuroscientist Richard Davidson
has shown that experienced meditators exhibit high levels of gamma ray activity and display an ability -- continuing after the meditation session has attended -- to not get stuck on a particular stimulus. That is, they're automatically able to control their thoughts and reactiveness.

http://www.huffingtonpost.com/2011/07/15/7-fascinating-facts-about_n_899482.html#s309243&title=It_Makes_Your

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Sunday, June 26, 2011

Men's Heart Health: Top Five Tips

Small lifestyle changes can yield big results when it comes to improving heart health. Here are four simple changes you can make today:

• Exercise for 30 minutes. Middle-aged men who exercise vigorously for two hours a week (aim for 30 minutes, four times a week) have a 60 percent lower risk of a heart attack than inactive men.

• Lose the spare tire. If you’re overweight, dropping 10 to 20 pounds lowers your risk of dying from a heart attack. In fact, a 10-year study found that overweight people had heart attacks 8.2 years earlier than normal-weight victims.

• Drink five glasses of water a day. Men who drink that many 8-ounce glasses are 54 percent less likely to have a fatal heart attack than those who drink two glasses or fewer. Researchers say the water dilutes the blood, making it less likely to clot.

• Count to 10. Keeping your cool under stress may keep you alive. Men who respond with anger are three times more likely to have heart disease and five times more likely to have a heart attack before turning 55.

http://health.yahoo.net/experts/menshealth/top-5-killers-of-men

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Wednesday, May 11, 2011

Should I retire?

Retirement is a big step. Take it in little pieces. Learn all you can and begin to search for resources - especially financial resources for retirees.

Here is a group of retirement resources: http://money.cnn.com/retirement/guide/

Hilton CSD Community Education is here to help. Check out any new courses which help you navigate through the options as well as:



  • Lifespan in Rochester - services for elders and caregivers



  • Eldersource in Rochester - all kinds of eldercare services including a case manager, housing options


  • InfoRochester/Senior Services - vast list of agencies to help



  • Entrepreneurship Resources - starting a micro-business at home?
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Thursday, February 10, 2011

Exercise training increases size of hippocampus and improves memory

Kirk I. Erickson, et. al. Department of Psychology, University of Pittsburgh

Abstract

The hippocampus shrinks in late adulthood, leading to impaired memory and increased risk for dementia. Hippocampal and medial temporal lobe volumes are larger in higher-fit adults, and physical activity training increases hippocampal perfusion, but the extent to which aerobic exercise training can modify hippocampal volume in late adulthood remains unknown. Here we show, in a randomized controlled trial with 120 older adults, that aerobic exercise training increases the size of the anterior hippocampus, leading to improvements in spatial memory. Exercise training increased hippocampal volume by 2%, effectively reversing age-related loss in volume by 1 to 2 y. We also demonstrate that increased hippocampal volume is associated with greater serum levels of BDNF, a mediator of neurogenesis in the dentate gyrus. Hippocampal volume declined in the control group, but higher preintervention fitness partially attenuated the decline, suggesting that fitness protects against volume loss. Caudate nucleus and thalamus volumes were unaffected by the intervention. These theoretically important findings indicate that aerobic exercise training is effective at reversing hippocampal volume loss in late adulthood, which is accompanied by improved memory function.
http://www.pnas.org/content/early/2011/01/25/1015950108.abstract
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Friday, December 31, 2010

January 27, 2010, 12:01 am

Phys Ed: How Exercising Keeps Your Cells Young

By GRETCHEN REYNOLDS

Chev Wilkinson/Getty Images

Recently, scientists in Germany gathered several groups of men and women to look at their cells’ life spans. Some of them were young and sedentary, others middle-aged and sedentary. Two other groups were, to put it mildly, active. The first of these consisted of professional runners in their 20s, most of them on the national track-and-field team, training about 45 miles per week. The last were serious, middle-aged longtime runners, with an average age of 51 and a typical training regimen of 50 miles per week, putting those young 45-mile-per-week sluggards to shame.

From the first, the scientists noted one aspect of their older runners. It ‘‘was striking,’’ recalls Dr. Christian Werner, an internal-medicine resident at Saarland University Clinic in Homburg, ‘‘to see in our study that many of the middle-aged athletes looked much younger than sedentary control subjects of the same age.’’

Even more striking was what was going on beneath those deceptively youthful surfaces. When the scientists examined white blood cells from each of their subjects, they found that the cells in both the active and slothful young adults had similar-size telomeres. Telomeres are tiny caps on the end of DNA strands — the discovery of their function won several scientists the 2009 Nobel Prize in medicine. When cells divide and replicate these long strands of DNA, the telomere cap is snipped, a process that is believed to protect the rest of the DNA but leaves an increasingly abbreviated telomere. Eventually, if a cell’s telomeres become too short, the cell ‘‘either dies or enters a kind of suspended state,’’ says Stephen Roth, an associate professor of kinesiology at the University of Maryland who is studying exercise and telomeres. Most researchers now accept telomere length as a reliable marker of cell age. In general, the shorter the telomere, the functionally older and more tired the cell.

It’s not surprising, then, that the young subjects’ telomeres were about the same length, whether they ran exhaustively or sat around all day. None of them had been on earth long enough for multiple cell divisions to have snipped away at their telomeres. The young never appreciate robust telomere length until they’ve lost it.

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When the researchers measured telomeres in the middle-aged subjects, however, the situation was quite different. The sedentary older subjects had telomeres that were on average 40 percent shorter than in the sedentary young subjects, suggesting that the older subjects’ cells were, like them, aging. The runners, on the other hand, had remarkably youthful telomeres, a bit shorter than those in the young runners, but only by about 10 percent. In general, telomere loss was reduced by approximately 75 percent in the aging runners. Or, to put it more succinctly, exercise, Dr. Werner says, ‘‘at the molecular level has an anti-aging effect.’’

There are plenty of reasons to exercise — in this column, I’ve pointed out more than a few — but the effect that regular activity may have on cellular aging could turn out to be the most profound. ‘‘It’s pretty exciting stuff,’’ says Thomas LaRocca, a Ph.D. candidate in the department of integrative physiology at the University of Colorado in Boulder, who has just completed a new study echoing Werner’s findings. In Mr. LaRocca’s work, people were tested both for their V02max — or maximum aerobic capacity, a widely accepted measure of physical fitness — and their white blood cells’ telomere length. In subjects 55 to 72, a higher V02max correlated closely with longer telomeres. The fitter a person was in middle age or onward, the younger their cells.

There are countless unanswered questions about how and why activity affects the DNA. For instance, Dr. Werner found that his older runners had more activity in their telomerase, a cellular enzyme thought to aid in lengthening and protecting telomeres. Exercise may be affecting telomerase activity and not telomeres directly. In addition, Stephen Roth has been measuring telomeres and telomerase activity in a wide variety of tissues in mice and has found, he says, the protective effects from exercise only in some tissues.

Another question is whether we must run 50 miles a week to benefit. The answer ‘‘can only be speculative at the moment,’’ Dr. Werner says, although since he jogs much less than that, he probably joins the rest of us in hoping not. Given his and his colleagues’ data, ‘‘one could speculate,’’ he concludes, ‘‘that any form of intense exercise that is regularly performed over a long period of time’’ will improve ‘‘telomere biology,’’ meaning that with enough activity, each of us could outpace the passing years.

An earlier version of this article stated incorrectly that the Saarland University Clinic is located in Hamburg.

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November 18, 2009, 12:01 am New York Times

Phys Ed: Why Exercise Makes You Less Anxious

By GRETCHEN REYNOLDS
A neurons in the brain.

Joubert/Photo Researchers, Inc
A neuron in the brain.

Researchers at Princeton University recently made a remarkable discovery about the brains of rats that exercise. Some of their neurons respond differently to stress than the neurons of slothful rats. Scientists have known for some time that exercise stimulates the creation of new brain cells (neurons) but not how, precisely, these neurons might be functionally different from other brain cells.

In the experiment, preliminary results of which were presented last month at the annual meeting of the Society for Neuroscience in Chicago, scientists allowed one group of rats to run. Another set of rodents was not allowed to exercise. Then all of the rats swam in cold water, which they don’t like to do. Afterward, the scientists examined the animals’ brains. They found that the stress of the swimming activated neurons in all of the brains. (The researchers could tell which neurons were activated because the cells expressed specific genes in response to the stress.) But the youngest brain cells in the running rats, the cells that the scientists assumed were created by running, were less likely to express the genes. They generally remained quiet. The “cells born from running,” the researchers concluded, appeared to have been “specifically buffered from exposure to a stressful experience.” The rats had created, through running, a brain that seemed biochemically, molecularly, calm.

For years, both in popular imagination and in scientific circles, it has been a given that exercise enhances mood. But how exercise, a physiological activity, might directly affect mood and anxiety — psychological states — was unclear. Now, thanks in no small part to improved research techniques and a growing understanding of the biochemistry and the genetics of thought itself, scientists are beginning to tease out how exercise remodels the brain, making it more resistant to stress. In work undertaken at the University of Colorado, Boulder, for instance, scientists have examined the role of serotonin, a neurotransmitter often considered to be the “happy” brain chemical. That simplistic view of serotonin has been undermined by other researchers, and the University of Colorado work further dilutes the idea. In those experiments, rats taught to feel helpless and anxious, by being exposed to a laboratory stressor, showed increased serotonin activity in their brains. But rats that had run for several weeks before being stressed showed less serotonin activity and were less anxious and helpless despite the stress.

Other researchers have looked at how exercise alters the activity of dopamine, another neurotransmitter in the brain, while still others have concentrated on the antioxidant powers of moderate exercise. Anxiety in rodents and people has been linked with excessive oxidative stress, which can lead to cell death, including in the brain. Moderate exercise, though, appears to dampen the effects of oxidative stress. In an experiment led by researchers at the University of Houston and reported at the Society for Neuroscience meeting, rats whose oxidative-stress levels had been artificially increased with injections of certain chemicals were extremely anxious when faced with unfamiliar terrain during laboratory testing. But rats that had exercised, even if they had received the oxidizing chemical, were relatively nonchalant under stress. When placed in the unfamiliar space, they didn’t run for dark corners and hide, like the unexercised rats. They insouciantly explored.

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“It looks more and more like the positive stress of exercise prepares cells and structures and pathways within the brain so that they’re more equipped to handle stress in other forms,” says Michael Hopkins, a graduate student affiliated with the Neurobiology of Learning and Memory Laboratory at Dartmouth, who has been studying how exercise differently affects thinking and emotion. “It’s pretty amazing, really, that you can get this translation from the realm of purely physical stresses to the realm of psychological stressors.”

The stress-reducing changes wrought by exercise on the brain don’t happen overnight, however, as virtually every researcher agrees. In the University of Colorado experiments, for instance, rats that ran for only three weeks did not show much reduction in stress-induced anxiety, but those that ran for at least six weeks did. “Something happened between three and six weeks,” says Benjamin Greenwood, a research associate in the Department of Integrative Physiology at the University of Colorado, who helped conduct the experiments. Dr. Greenwood added that it was “not clear how that translates” into an exercise prescription for humans. We may require more weeks of working out, or maybe less. And no one has yet studied how intense the exercise needs to be. But the lesson, Dr. Greenwood says, is “don’t quit.” Keep running or cycling or swimming. (Animal experiments have focused exclusively on aerobic, endurance-type activities.) You may not feel a magical reduction of stress after your first jog, if you haven’t been exercising. But the molecular biochemical changes will begin, Dr. Greenwood says. And eventually, he says, they become “profound.”

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Thursday, December 16, 2010

Phys Ed: The Benefits of Exercising Before Breakfast

December 15, 2010

By GRETCHEN REYNOLDS
The holiday season brings many joys and, unfortunately, many countervailing dietary pitfalls. Even the fittest and most disciplined of us can succumb, indulging in more fat and calories than at any other time of the year. The health consequences, if the behavior is unchecked, can be swift and worrying. A recent study by scientists in Australia found that after only three days, an extremely high-fat, high-calorie diet can lead to increased blood sugar and insulin resistance, potentially increasing the risk for Type 2 diabetes. Waistlines also can expand at this time of year, prompting self-recrimination and unrealistic New Year’s resolutions.
But a new study published in The Journal of Physiology suggests a more reliable and far simpler response. Run or bicycle before breakfast. Exercising in the morning, before eating, the study results show, seems to significantly lessen the ill effects of holiday Bacchanalias.

For the study, researchers in Belgium recruited 28 healthy, active young men and began stuffing them with a truly lousy diet, composed of 50 percent fat and 30 percent more calories, overall, than the men had been consuming. Some of the men agreed not to exercise during the experiment. The rest were assigned to one of two exercise groups. The groups’ regimens were identical and exhausting. The men worked out four times a week in the mornings, running and cycling at a strenuous intensity. Two of the sessions lasted 90 minutes, the others, an hour. All of the workouts were supervised, so the energy expenditure of the two groups was identical.

Their early-morning routines, however, were not. One of the groups ate a hefty, carbohydrate-rich breakfast before exercising and continued to ingest carbohydrates, in the form of something like a sports drink, throughout their workouts. The second group worked out without eating first and drank only water during the training. They made up for their abstinence with breakfast later that morning, comparable in calories to the other group’s trencherman portions.
The experiment lasted for six weeks. At the end, the nonexercising group was, to no one’s surprise, super-sized, having packed on an average of more than six pounds. They had also developed insulin resistance — their muscles were no longer responding well to insulin and weren’t pulling sugar (or, more technically, glucose) out of the bloodstream efficiently — and they had begun storing extra fat within and between their muscle cells. Both insulin resistance and fat-marbled muscles are metabolically unhealthy conditions that can be precursors of diabetes.

The men who ate breakfast before exercising gained weight, too, although only about half as much as the control group. Like those sedentary big eaters, however, they had become more insulin-resistant and were storing a greater amount of fat in their muscles.
Only the group that exercised before breakfast gained almost no weight and showed no signs of insulin resistance. They also burned the fat they were taking in more efficiently. “Our current data,” the study’s authors wrote, “indicate that exercise training in the fasted state is more effective than exercise in the carbohydrate-fed state to stimulate glucose tolerance despite a hypercaloric high-fat diet.”

Just how exercising before breakfast blunts the deleterious effects of overindulging is not completely understood, although this study points toward several intriguing explanations. For one, as has been known for some time, exercising in a fasted state (usually possible only before breakfast), coaxes the body to burn a greater percentage of fat for fuel during vigorous exercise, instead of relying primarily on carbohydrates. When you burn fat, you obviously don’t store it in your muscles. In “our study, only the fasted group demonstrated beneficial metabolic adaptations, which eventually may enhance oxidative fatty acid turnover,” said Peter Hespel, Ph.D., a professor in the Research Center for Exercise and Health at Catholic University Leuven in Belgium and senior author of the study.

At the same time, the fasting group showed increased levels of a muscle protein that “is responsible for insulin-stimulated glucose transport in muscle and thus plays a pivotal role in regulation of insulin sensitivity,” Dr Hespel said.

In other words, working out before breakfast directly combated the two most detrimental effects of eating a high-fat, high-calorie diet. It also helped the men avoid gaining weight.
There are caveats, of course. Exercising on an empty stomach is unlikely to improve your performance during that workout. Carbohydrates are easier for working muscles to access and burn for energy than fat, which is why athletes typically eat a high-carbohydrate diet. The researchers also don’t know whether the same benefits will accrue if you exercise at a more leisurely pace and for less time than in this study, although, according to Leonie Heilbronn, Ph.D., a professor at the University of Adelaide in Australia, who has extensively studied the effects of high-fat diets and wrote a commentary about the Belgian study, “I would predict low intensity is better than nothing.”

So, unpleasant as the prospect may be, set your alarm after the next Christmas party to wake you early enough that you can run before sitting down to breakfast. “I would recommend this,” Dr. Heilbronn concluded, “as a way of combating Christmas” and those insidiously delectable cookies.
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Wednesday, December 1, 2010

The Incredible Flying Nonagenarian

Patrik Giardino for The New York Times

Olga Kotelko’s long jump record is 5.8 feet. (High-School Record, Women’s: 22.3 ft.; World Record, Women’s: 24.8 ft.)

By BRUCE GRIERSON
On the third floor of the Montreal Chest Institute, at McGill University, Olga Kotelko stood before a treadmill in the center of a stuffy room that was filling up with people who had come just for her. They were there to run physical tests, or to extract blood from her earlobe, or just to observe and take notes. Kotelko removed her glasses. She wore white New Balance sneakers and black running tights, and over her silver hair, a plastic crown that held in place a breathing tube.
Enlarge This Image
Patrik Giardino for The New York Times

STRENGTH Kotelko holds the world indoor shot-put record for women 90 and over.

Olga Kotelko’s Record:16.1 ft.
High-School Record, Women’s: 54 ft.
World Record, Women’s: 74.3 ft.

Enlarge This Image
Patrik Giardino for The New York Times

AGILITY She holds two world records in javelin for women over 85.

Olga Kotelko’s Record: 41 ft
High-School Record, Women’s: 176.5 ft.
World Record, Women’s: 237 ft.

Tanja Taivassalo, a 40-year-old muscle physiologist, adjusted the fit of Kotelko’s stretch-vest. It was wired with electrodes to measure changes in cardiac output — a gauge of the power of her heart. Taivassalo first met Kotelko at last year’s world outdoor masters track championships in Lahti, Finland, the pinnacle of the competitive season for older tracksters. Taivassalo went to watch her dad compete in the marathon. But she could hardly fail to notice the 91-year-old Canadian, bespandexed and elfin, who was knocking off world record after world record.

Masters competitions usually begin at 35 years, and include many in their 60s, 70s and 80s (and a few, like Kotelko, in their 90s, and one or two over 100). Of the thousands who descended on Lahti, hundreds were older than 75. And the one getting all the attention was Kotelko. She is considered one of the world’s greatest athletes, holding 23 world records, 17 in her current age category, 90 to 95.

“We have in masters track ‘hard’ records and ‘soft’ records,” says Ken Stone, editor of masterstrack.com — the main news source of the growing masters athletic circuit. “Soft records are like low-hanging fruit,” where there are so few competitors, you’re immortalized just for showing up. But Stone doesn’t consider Kotelko’s records soft, because her performances are remarkable in their own right. At last fall’s Lahti championship, Kotelko threw a javelin more than 20 feet farther than her nearest age-group rival. At the World Masters Games in Sydney, Kotelko’s time in the 100 meters — 23.95 seconds — was faster than that of some finalists in the 80-to-84-year category, two brackets down. World Masters Athletics, the governing body of masters track, uses “age-graded” tables developed by statisticians to create a kind of standard score, expressed as a percentage, for any athletic feat. The world record for any given event would theoretically be assigned 100 percent. But a number of Kotelko’s marks — in shot put, high jump, 100-meter dash — top 100 percent. (Because there are so few competitors over 90, age-graded scores are still guesswork.)

In Lahti, watching Kotelko run fast enough that the wind blew her hair back a bit, Taivassalo was awed on a personal level (she’s a runner) and tantalized on a professional one. She hoped to start a database of athletes over 85, testing various physiological parameters.

Scientifically, this is mostly virgin ground. The cohort of people 85 and older — the fastest-growing segment of the population, as it happens — is increasingly being studied for longevity clues. But so far the focus has mostly been on their lives: the foods they eat, the air they breathe, the social networks they maintain and, in a few recently published studies, their genomes. Data on the long-term effects of exercise is only just starting to trickle in, as the children of the fitness revolution of the ’70s grow old.

Though the world of masters track offers a compelling research pool, Taivassalo may seem like an unlikely scientist to be involved. Her area of expertise is mitochondrial research; she examines what happens to the body when mitochondria, the cell’s power plants, are faulty. Her subjects are typically young people who come into the lab with neuromuscular disorders that are only going to get worse. (Because muscle cells require so much energy, they’re hit hard when mitochondria go down.) Some researchers now see aging itself as a kind of mitochondrial disease. Defective mitochondria appear as we get older, and these researchers say that they rob us of endurance, strength and function. There’s evidence that for young patients with mitochondrial disease, exercise is a potent tool, slowing the symptoms. If that’s true, then exercise could also potentially be a kind of elixir of youth, combating the ravages of aging far more than we thought.

You don’t have to be an athlete to notice how ruthlessly age hunts and how programmed the toll seems to be. We start losing wind in our 40s and muscle tone in our 50s. Things go downhill slowly until around age 75, when something alarming tends to happen.

“There’s a slide I show in my physical-activity-and-aging class,” Taivassalo says. “You see a shirtless fellow holding barbells, but I cover his face. I ask the students how old they think he is. I mean, he could be 25. He’s just ripped. Turns out he’s 67. And then in the next slide there’s the same man at 78, in the same pose. It’s very clear he’s lost almost half of his muscle mass, even though he’s continued to work out. So there’s something going on.” But no one knows exactly what. Muscle fibers ought in theory to keep responding to training. But they don’t. Something is applying the brakes.

And then there is Olga Kotelko, who further complicates the picture, but in a scientifically productive way. She seems not to be aging all that quickly. “Given her rather impressive retention of muscle mass,” says Russ Hepple, a University of Calgary physiologist and an expert in aging muscle, “one would guess that she has some kind of resistance.” In investigating that resistance, the researchers are hoping to better understand how to stall the natural processes of aging.

Hepple, who is 44 and still built like the competitive runner he used to be, met Taivassalo at an exercise-physiology conference. She did her Ph.D. on people with mitochondrial disease; he was better acquainted with rats. They married. In the room at McGill, Hepple leaned in to the treadmill, barking encouragement to Kotelko as needed as she jacked her heart rate up beyond 135. In the end, Kotelko’s “maxVO2” score — a strong correlate of cardiovascular endurance — topped out at 15.5. That’s about what you’d expect from a “trained athlete of 91,” if such a type existed.

In truth, there is no type. Though when you hear the stories of older senior athletes, a common thread does emerge. While most younger masters athletes were jocks in college if not before, many competitors in the higher brackets — say, older than age 70 — have come to the game late. They weren’t athletes earlier in life because of the demands of career and their own growing families. Only after their duties cleared could they tend that other fire.

That’s Kotelko’s story, too. She grew up, with parents of Ukrainian descent, on a farm in Vonda, Saskatchewan, No. 7 of 11 kids. In the morning, after the chickens were fed and the pigs slopped and the cows milked, the brood would trudge two miles to school, stuff a broken old softball with sand or rags and play ball. Kotelko loved the game and played through childhood, but as she got older, the opportunities just weren’t there.

As an adult she taught grades 1 through 10 in the one-room schoolhouse in Vonda, married the wrong man young and, realizing her mistake, fled for British Columbia in 1957 with two daughters and brought them up alone, earning her bachelor’s degree at night. Much of her adulthood had run through her fingers before she could even think again about sports.

She picked up softball again after retiring from teaching in 1984 — slow-pitch, but pretty competitive. (“We went for blood.”) And then one day when she was 77, a teammate suggested she might enjoy track and field.

She hooked up with a local coach, who taught her the basics. She found a trainer — a strict Hungarian woman who seemed as eager to push her as Kotelko was keen to be pushed. Juiced with enthusiasm, Kotelko hit the gym hard, three days a week in season. For up to three hours at a stretch, she performed punishing exercises like planks and roman chairs and bench presses and squats, until her muscles quivered and gassed out.

Though she still does some of these things — the push-ups (three sets of 10), the situps (three sets of 25) — she doesn’t push herself the same way anymore. Apart from Aquafit classes three times a week, she pretty much takes the whole dreary Vancouver winter off. Then, come spring, four weeks or so before the first competition of the season (she’ll usually enter five or six meets each year), she starts her routine. She carts her gear to the track at the high school. She dons her spikes, takes a spade and turns the middens of teenage recreation into long-jump pits. And then goes to it — alone. On the track she will often run intervals: slow for a minute, then full out for a minute. At the beginning of each year she figures out where to put her energy. This year it’ll be throws and jumps and the 100-meter dash — the only meaningful world record missing from her résumé. She says she may not run the 200 and 400 again until 2014, when she moves up into the 95-plus age category. (Her current world marks in those events, she reckons, will be safe for four more years.)

She does deep breathing and reflexology. She has developed a massage program, which she rolls out most nights, called the “O.K.” routine, after her own initials. It involves systematically kneading her whole body, from stem to gudgeon, while lying in bed. Sometimes she’ll work one part of her body while stretching another with a looped strap. (“I don’t like wasting time,” she says.)

Ken Stone calls her “bulletproof,” and her history even off the track bears the label out. Apart from two visits to give birth to her daughters, she has seen the inside of a hospital once in her life, for a hysterectomy.

Kotelko acknowledged her good luck as she put away a big plate of pasta and a glass of red wine one evening, midway through the world indoor championships in Kamloops, British Columbia, this spring.

“How old do you feel?” I asked her.

“Well, I still have the energy I had at 50,” she said. “More. Where is it coming from? Honestly, I don’t know. It’s a mystery even to me.”

The previous day, on a patch of grass tricked out as a javelin field, I watched Kotelko come forward for her turn to throw. Kotelko, who is five feet tall, took the javelin offered by an official with quiet dispatch, like a hockey player accepting a new stick from the bench. There was a bit of a crosswind; it didn’t affect her too much. She picked a cloud to aim at (a tip she first read about in a library book). Ritualistically, she touched the spear tip, rocked on the back foot and let fly, all momentum. It traveled 41 feet.

Later, in her favorite event, the hammer throw, Kotelko took her place on the pitch with the other competitors — younger women she competes alongside, though not strictly against, since at this meet she was the only woman in the 90-and-over category. She removed her glasses. She swung the seven-pound cannonball around her head — once, twice, three times — and the thing sailed, landing with a thud, 45.5 feet away. “If I spun I could throw it farther,” she admitted later, but after watching somebody very old fall that way, she has decided not to risk it.

EXERCISE HAS BEEN shown to add between six and seven years to a life span (and improve the quality of life in countless ways). Any doctor who didn’t recommend exercise would be immediately suspect. But for most seniors, that prescription is likely to be something like a daily walk or Aquafit. It’s not quarter-mile timed intervals or lung-busting fartleks. There’s more than a little suffering in the difference.

Here, though, is the radical proposition that’s starting to gain currency among researchers studying masters athletes: what if intense training does something that allows the body to regenerate itself? Two recent studies involving middle-aged runners suggest that the serious mileage they were putting in, over years and years, had protected them at the chromosomal level. It appears that exercise may stimulate the production of telomerase, an enzyme that maintains and repairs the little caps on the ends of chromosomes that keep genetic information intact when cells divide. That may explain why older athletes aren’t just more cardiovascularly fit than their sedentary counterparts — they are more free of age-related illness in general.

Exactly how exercise affects older people is complicated. On one level, exercise is a flat-out insult to the body. Downhill running tears quadriceps muscles as reliably as an injection of snake venom. All kinds of free radicals and other toxins are let loose. But the damage also triggers the production of antioxidants that boost the health of the body generally. So when you see a track athlete who looks as if that last 1,500-meter race damn near killed him, you’re right. It might have made him stronger in the deal.

Exercise training helps stop muscle strength and endurance from slipping away. But it seems to also do something else, maintains Mark Tarnopolsky, a professor of pediatrics and medicine at McMaster University in Hamilton, Ontario (who also happens to be a top-ranked trail runner). Resistance exercise in particular seems to activate a muscle stem cell called a satellite cell. With the infusion of these squeaky-clean cells into the system, the mitochondria seem to rejuvenate. (The phenomenon has been called “gene shifting.”) If Tarnopolsky is right, exercise in older adults can roll back the odometer. After six months of twice weekly strength exercise training, he has shown, the biochemical, physiological and genetic signature of older muscle is “turned back” nearly 15 or 20 years.

Whether we are doing really old folks any favors by prescribing commando-grade training, well, “that’s the million-dollar question,” Hepple says. “Olga can obviously handle it. But most people aren’t Olga.” In general, kidneys and other organs tend to have trouble managing the enzymes and byproducts produced when muscle breaks down. Inflammation, which produces that good kind of soreness weekend warriors are familiar with, “also damages a lot of healthy tissue around it,” notes Li Li Ji, an exercise physiologist at the University of Wisconsin, Madison. “That’s why I usually discourage older people from being too ambitious.”

Yet if there’s a single trend in the research into exercise and gerontology, it’s that we have underestimated what old folks are capable of, from how high their heart rates can safely climb to how deeply into old age they can exercise with no major health risks.

The conundrum for masters athletes — though it seems Kotelko’s great fortune to have largely escaped the phenomenon — is this: Big physiological benefits from exercise are there for the taking. You just have to keep exercising. But you can’t exercise if the body breaks down. To avoid injuries, aging track athletes are often advised to keep to their old routines but to lower the intensity. The best advertisement for that strategy was a race turned in five years ago by a 73-year-old from Ontario. Age-graded, Ed Whitlock’s 2:54 marathon (the equivalent of a 20-year-old running 2:03.57) was the fastest ever run. When people collared him afterward to find out his training secret, they learned that he ran every day, slowly, for hours, around the local cemetery.

Kotelko herself speaks often of the perils of getting carried away. “If you undertrain, you might not finish,” she says. “If you overtrain, you might not start.” But there’s some evidence that, in trying to find the sweet spot between staying in race shape and avoiding the medical tent, a lot of seniors athletes aren’t training hard enough — or at least, aren’t training the right way to maximally exploit what their body can still do.

Recently, Scott Trappe, director of the Human Performance Laboratory at Ball State University in Muncie, Ind., published a study on weightlessness and exercise in The Journal of Applied Physiology. Using M.R.I. and biopsy data from NASA, he looked at the exercise program of nine astronauts from the International Space Station. In many ways, an astronaut in zero gravity is undergoing an experiment in accelerated aging — muscles atrophy, bone-density declines. That’s what these astronauts were finding too, even though they were using a treadmill, a stationary bike and a resistance machine.

Trappe concluded the regime wasn’t nearly hard-core enough. His prescription for NASA: heavier loads and explosive movements. “It’s pretty clear that intensity wins up there,” he says. “And I would predict this to be the case as we age. Part of the challenge is the mind-set or dogma that we need to slow down as we get older.” For example, the belief that aging joints and tendons can’t take real weight-training is dead wrong; real weight-training is what might just save them. Seniors can work out less frequently, Trappe reckons, as long as they really bring it when they do.

Kotelko used to train like that — spurred on by her severe Hungarian coach. Strangely though, since easing off the throttle the last few years, she’s getting some of the best results of her life. It’s hard to know what to conclude from that, except perhaps that the gene-shifting theory is true, and Kotelko is still enjoying the compound interest from that earlier sweat equity. “What I do now seems adequate,” she reasons. “It must be. I keep getting world records.”

THE DAY AFTER the treadmill test, Kotelko was ushered into the free-weight gym at McGill University. She lay down at the bench press. Taivassalo was interested in the composition of Kotelko’s muscle fibers. We all have Type 1 muscle (slow-twitch, for endurance) and a couple of varieties of Type 2 (fast-twitch, used for power). Most people are born with roughly half of Type 1 and half of Type 2. Around age 70, fast-twitch muscle begins to stop responding, followed by the decline of slow-twitch a decade later. Power drains away. Trappe calls this the “fast-twitch-fiber problem.” It helps explain the frustration that aging sprinters feel when their times drop off despite their dogged efforts. And no matter how high-tech their exercise program, how strong their will, how good their genes, nobody escapes. Often, the drop-off happens too gradually to notice. But sometimes little moments of perspective pop up.

In Kamloops, Kotelko jumped 5.5 feet to trump her own indoor long-jump world record. Afterward, the sexagenarian pentathletes took to the pit. Among them was Philippa (Phil) Raschker, a 63-year-old from Marietta, Ga., legendary on the masters track circuit. Raschker holds, or has held, more than 200 national and world records — sprints, jumps, hurdles. She was competing in nine events in Kamloops. (This despite being pretty much exhausted from working late into the night filing clients’ taxes for days on end. She’s an accountant; it was March.) When I first saw her high jumping, from a distance, I thought she could have been 25. You could see, below her stretch top, the six-pack. But it wasn’t how Raschker looked that arrested; it was the way she moved. Raschker Fosbury-flopped over the bar like water pouring from a jug. The flop allows you to jump higher than other methods do because your center of gravity never actually clears the bar. But the severe back arch demands a suppleness that’s alien to the aging body, which is why pretty much no one over 65 does it. Kotelko was already too old to flop when she took up track at age 77. Instead, she sort of bestrides the bar. Her world record of 2.7 feet is just a little higher than the superfoamy mat. Overall, Kotelko’s high jump gives the impression of someone taking a run at a hotel-room bed.

The difference between the world’s greatest 60-year-old and the world’s greatest 90-year-old was clear. On view was the march of “sarcopenia” — the loss of muscle, the theft of that once-explosive power that makes the very old seem subject to a different set of physical laws.

It is irresistible to think of Olga Kotelko and Phil Raschker as twins separated by time. Except that Raschker has the potential advantage of a much earlier head start on the track. Given all that extra compounding interest, might she in 30 years become a kind of super-Olga?

“Hard to say,” Hepple says. “She’s obviously at a point that precedes many of the big changes that usually happen. And we don’t know how resistant she is — and that resistance is something we do think sets Olga apart.” Those extra decades of pounding might break Raschker down or burn her out.

Motivation may ultimately be the issue. Finding reasons to keep exercising is a universal challenge. Even rats seem to bristle, eventually, at voluntary exercise, studies suggest. Young rats seem intrinsically driven to run on the wheels you put in their cages. But one day those wheels just stop turning. The aging athlete must manufacture strategies to keep pushing in the face of plenty of perfectly rational reasons not to: things hurt, you’ve achieved a lot of your goals and the friends you used to do it for and with are disappearing.

But competition can spur people on. “Maintaining your own records in the face of your supposed decline, providing evidence that you’re delaying the effects of aging — these are strong motives,” says Bradley Young, a kinesiology and sports psychology professor at the University of Ottawa. Young studies the factors that make track athletes want to continue competing into old age. A big one is training partners and family — both the encouragement they offer, and the guilt you’d feel letting them down if you quit. But the strongest motivating driver, Young found, was one’s spouse.

In this way, too, Kotelko is unique. She has no husband, and though she does have some family — her daughter Lynda and son-in-law Richard, with whom she lives in Vancouver — they are not involved in her training.

IN ONE OF HER last duties to science on the Montreal trip, Kotelko lay serenely, under local anesthetic, on an examining table in the storied Montreal Neurological Institute, where Wilder Penfield mapped the human brain. “Contract your thigh muscle, please,” Dr. José Morais said. The muscle shrugged up visibly when she tensed. The doctor began to draw out a little plug of tissue with a gleaming silver instrument that looked a bit like a wine corker. The sample would be frozen, and the fibers would later be examined.

Muscle is a decent barometer for the general health of a body. It contains what Hepple calls biomarkers of aging — changes over time in its structure, biochemistry, protein expression. These mark the body’s decreasing ability to withstand the stresses it encounters — “some from outside us, like infections, and some from inside us,” like the cellular trash that builds up through normal body functions like breathing and metabolism. “In essence, they tell us how well Olga has handled the very things that cause most of us to age and die at or around age 80.”

Hepple, in Kotelko’s tissue sample, would be looking for the little angular muscle fibers that typically stop working as people age because they have come unplugged from the motor neurons, nerve cells that tell them to fire. Many researchers assume the problem is within the muscle cells. Hepple disagrees. He says those neighboring motor neurons aren’t activating the muscle as they should, and he speculated that more of Kotelko’s would be functioning properly.

Ideally, these two scientists would like to run a sample through genetic testing. Perhaps there are clues in Kotelko’s genome that will help explain the thing that is so singular about her — not speed or power or prowess in any one event, but the resilience to endure all the stress of hard physical activity, year after year, without a hint of breakdown, and no end to the pattern in sight. “There could be a lot we find out in that biopsy,” Taivassalo said, “that tells us what to ask next.” Taivassalo intends to put together a larger sample size, at least 20 or 30 subjects, all old athletes. At that point the information starts becoming statistically significant, and patterns emerge. If the prospect of 30 more nominal Olgas spraying data points into unmapped space is enough to set the hearts of gerontologists aflutter, to Kotelko, the idea that there may be, somewhere, even one more older track star — a genuine rival — is tantalizing. She yearns, she insists, with semiplausible conviction, to be pushed. There’d be no talk of low-hanging fruit and meaningless medals if there were someone she could race close and beat in real time. “I’d love that,” she told me more than once.

She may get her wish. Mitsu Morita, an 88-year-old from Japan, is faster than Kotelko was at that age and is breaking all of Kotelko’s records in that age bracket. A Nike ad featuring Morita made her a minor phenomenon in Japan; there are clips of her orbiting the track, followed by laughing teenagers trying to keep up. In the 200, Morita’s world-record time is almost 10 seconds faster than Kotelko’s time in the 90-to-95 category. She claims she gets her strength from eating eel.

Morita is not a big traveler. If she can be persuaded to come to America for the world outdoor championships in Sacramento next summer, Kotelko will have her hands full.

In October, the first of Kotelko’s muscle samples came back from the lab. The results were compelling. In a muscle sample of a person over the age of 65, you would expect to see at least a couple of fibers with some mitochondrial defects. But in around 400 muscle fibers examined, Taivassalo said, “we didn’t see a single fiber that had any evidence” of mitochondrial decay. “It’s remarkable,” she added.

As the data on Kotelko gather, it’s hard to avoid a conclusion. “Olga has done no more training than many athletes, and yet she’s the one still standing,” Hepple says. “Why? In my mind, it has everything to do with her innate physiological profile.”

This sounds like discouraging news: she is not like us. But understanding Kotelko’s uniqueness may provide benefits for others. We could learn a lot about why, for example, nerve cells die by studying someone in whom, for whatever reason, they seem to live on. And that, Taivassalo explains, may have implications for neuromuscular diseases like ALS — for which no current therapies have a meaningful impact. Drugs might be developed to, for example, somehow dial up the signals at that junction where the neurons are supposed to be telling muscles to move. Small molecular agents could target specific problem areas in aging muscles to make them more resilient. “At this stage it’s all speculation,” Hepple says. “But that’s the direction we’re moving. Because all the usual things don’t seem to apply.”

Presumably, at least some of the interventions that emerge will help mimic, for ordinary people entering their very old years, if not exactly Kotelko’s performance on the track, at least something approaching the quality of her life.

This is the other story of the future of aging. When the efforts of medical science converge to simply prolong existence, you envision Updike’s golfer Farrell, poking his way “down the sloping dogleg of decrepitude.” But scientists like Taivassalo and Hepple have a different goal, and exercise — elixir not so much of extended life as extended youthfulness — may be the key to reaching it. James Fries, an emeritus professor at Stanford School of Medicine, coined the working buzz phrase: “compression of morbidity.” You simply erase chronic illness and infirmity from the first, say, 95 percent of your life. “So you’re healthy, healthy, healthy, and then at some point you kick the bucket,” Tarnopolsky says. “It’s like the Neil Young song: better to burn out than to rust.” You get a normal life span, but in Olga years. Who wouldn’t take it?

Bruce Grierson is the author of “U-Turns: What if You Woke Up One Morning and Realized You Were Living the Wrong Life?”

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