| Sep 15, 2010
Any exercise you do requires two things: muscle contraction and energy. You train your muscles with exercise, of course, but did you know you also train the mechanisms that provide the energy?
All cellular activity is fueled by adenosine triphosphate, or...
| Aug 31, 2010
The link between learning and exercise is now well established. As kids return to the classroom this fall, and as more parents discover that school recess and P.E. have been cut back or eliminated entirely, families are making exercise an after-school...
| Jul 21, 2010
When Tour de France cyclist Cadel Evans wanted to press on after fracturing his elbow in a fall in Stage 8, BMC Racing Team physician Max Testa, M.D., made the call.
Seeing no risk of permanent damage, Testa gave Evans the green light. "It was a stable...
| Aug 10, 2010
It's the time of year when school sports start gearing up for fall with two-a-day football practices, afternoon soccer scrimmages and long cross-country runs. Unfortunately, it's also the time of year when we start hearing about young athletes—...
| Aug 4, 2010
Quite a buzz was generated this spring by a Harvard study showing that losing weight via exercise is more difficult than previously thought.
One of the pitfalls was an insufficient amount of exercise. The study, published in the Journal of the American...
| Sep 8, 2010
Improving performance and reducing the risk of injury during exercise is not just a matter of building your strength or endurance. Efficient movement also plays a role, and that comes only with repetition.
In that sense, practice does make perfect.
| Jul 13, 2010
Many fitness programs promote the idea that you lose weight simply because you burn a certain number of calories while you're exercising. But you also continue to burn calories after you exercise. We call this phenomenon exercise after-burn.
For the Tour...
| Sep 29, 2010
There are certain places you might expect to see a recommendation to hire a personal trainer — say, in a muscle-magazine ad or on late-night TV. But one of those places is probably not a publication by one of our nation's most venerated medical...
| Aug 18, 2010
Flat abs and bulging biceps are improvements brought on by exercise. Less visible but more significant are the structural improvements aerobic exercise make to your heart—improvements that can take you from feeling like a junker car to purring...
| Jul 28, 2010
Many exercise physiologists believe that the intensity of an activity is more important than how long you exercise or how many times you repeat an exercise.
But gauging exercise intensity can be difficult—what's low intensity to one person can seem...
| Jun 9, 2010
Weight lifting is an effective—if often overlooked—exercise for achieving a number of different fitness objectives. It can help you lose weight, build endurance and strength, or serve as an aerobic workout.
The ideal weight YOU, in...