Exercise & Fitness Archive

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Experts' advice has changed as we've learned more about the connection between physical activity and health.

If exercise could be packed into a pill, it would be the single most widely prescribed and beneficial medicine in the nation.

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Men who need a regular reminder to stay active can get a little help from these electronic friends.

Your body is wired to receive and respond to feedback. You easily identify pain, discomfort, and fatigue and are quick to make changes to correct the problem.

In the journals

Even if you are active, increasing the time you spend standing every day may further lower your odds of becoming obese, says a new study from the American Cancer Society.

The researchers studied more than 7,000 patients, ages 20 to 79, and reviewed the association between their standing time and their risk of obesity. They looked at specific measurements—such as body mass index, waist circumference, and body fat percentage—and metabolic syndrome, a clustering of factors that increases the risk for heart disease, stroke, and diabetes.

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In the journals

A study published in the journal Frontiers in Aging and Neuroscience (Aug. 25, 2015) has found that fitness levels in older adults correlates with activation in areas in the brain's frontal lobe responsible for executive function—mental skills used to manage time, plan and organize, and remember details. The researchers examined brain imaging and cardio fitness data from 128 adults ages 50 to 80. Cardio fitness level was determined by measuring maximal oxygen consumption (VO2 max) while a person walked at increasing speed on a treadmill. Executive function skills were measured by how fast and accurately a person responded to computer stimuli like numbers and letters.

The results: People with a higher cardiorespiratory fitness level showed greater brain activation in the frontal lobe. They were also better at performing two simultaneous tasks compared with a single one. This is important since older adults have more difficulty processing multiple tasks, says the researchers. While this study found a link between good cardio health and better cognitive function, more research is needed to show you can improve your brain function by increasing your fitness.

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Compared with brisk walking, swimming allows you to meet your fitness goals with less stress on your joints and muscles.

In terms of convenience, it's hard to beat brisk walking as a form of exercise. You don't need any special equipment or venue, and most people can do it. But for some people—such as those with achy knees, sore hips, or substantial weight—walking may be uncomfortable. And during the winter, harsh weather in many parts of the country can make walking outdoors unpleasant—even treacherous at times. A water workout in a warm indoor pool, followed by a relaxing sauna could be an appealing alternative that's also good for your heart.

Research we're watching

Older adults can reap greater heart benefits from a daily stroll if they pick up the pace a bit, a study in the Nov. 4, 2015, Circulation reports.

Most exercise studies include predominantly younger adults. This new study is an exception. Researchers followed more than 4,200 people—whose average age was 73—for 10 years. They gathered information about the participants' health and their physical activity.

Quick bursts of exercise and doing tasks will break the cycle of inactivity and keep you healthier.

It's easy to spend long periods sitting in front of a computer, or with a tablet or smartphone, even when you know it's not good for health. But it's not quite as easy to break the cycle of being a "keyboard athlete," and make an effort to get more activity into your day. "I agree, I think people are becoming aware that prolonged sitting has a negative impact on health, but I'm not seeing enough people actually do something about it," says Marsha Pogrebinsky, a physical therapist at Harvard-affiliated Massachusetts General Hospital.

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The wearable electronic devices may motivate you to stick to a diet or exercise plan.

If you've resolved to get more exercise, lose weight, or get more sleep in 2016, then a host of wearable electronic devices and apps are available to help you succeed. They will gently prod you to work toward your goal, encourage you along the way, and praise you when you get there. The gadgets record your activity, while the apps interpret the results and send you frequent messages to let you know how well you're progressing.

Research we're watching

A study reported at the 2015 annual meeting of the North American Menopause Society shows that some types of physical activity have a greater impact on body composition in postmenopausal women than in premenopausal ones.

Researchers at the University of Massachusetts asked 630 premenopausal and 274 postmenopausal women to wear accelerometers (motion trackers) to estimate the amount of time they spent doing physical activity. Although the postmenopausal women, on average, logged fewer active hours and more sedentary time than the premenopausal women, they gained more from the time they did spend in motion. Increased activity was associated with greater reductions in body mass index, waist size, and percentage of body fat in postmenopausal women than in their premenopausal counterparts.

Learning a new dance step involves exercise, socialization, and a challenge, all of which can help boost thinking skills.
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Challenging your brain, staying physically active, and being socially engaged may help keep our thinking skills sharp.