Exercise & Fitness Archive

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Why push-ups help beat aging

This old-school exercise offers a real-time assessment of your strength and motivates you to improve your fitness.


Image: kieferpix/ iStock

Push-ups have long been the symbol of optimal fitness. They are still used by the U.S. Army and the Presidential Physical Fitness Challenge to assess strength and endurance.

For older men, the simple push-up can be used as a snapshot of their current fitness. "Push-ups are the classic bread-and-butter exercise," says Dr. Edward Phillips of Harvard-affiliated Spaulding Rehabilitation Hospital. "How many you can do at one time offers a measurement of your strength and is an easy tool to help you improve. You can do them anywhere and at any time, and only need a few minutes."

Is an “exercise pill” coming your way?

Researchers are developing pills that provide many of the effects of exercise. But none provides all the benefits of physical activity.


Image: Dmitry Fischer/ Thinkstock

Health experts are fond of saying, "If exercise were a pill, everyone would want to take it." And scientists seem to agree. Over the past several years there has been an accelerated push to develop drugs that mimic the effects of exercise. The promise is enormous—such medications could be a boon to people whose physical activity is limited by medical conditions or injuries. They could provide a head start for people who are beginning an exercise program. They could also confer the health benefits of exercise on healthy people who can't fit physical activity into their schedules or just don't want to get off the couch.

"While the idea of an exercise pill is a good one, it has many, many limitations," says Dr. Laurie Goodyear, head of the Section on Integrative Physiology and Metabolism at Harvard-affiliated Joslin Diabetes Center. Just as a vitamin capsule won't provide all the benefits of a healthy diet, a single pill is unlikely to provide all the benefits of exercise.

Get up, stand up, for your health: A little exercise offsets a lot of sitting

Sitting has been described as the “new smoking.” While that may sound discouraging if you’re always driving long distances or sitting in an office chair for hours on end, there is something you can do about it. Moderate exercising like walking the dog or riding a bike for just an hour a day could alleviate or even eliminate the dangers caused by sitting all day. And if you’re worried about a full hour, benefits still come from spreading those 60 minutes out throughout the day.

The top 5 benefits of cycling

Going for a ride is good for your heart and muscles, and it may improve how you walk, balance, and climb stairs.


Image: DTStockPhotos

They say you never forget how to ride a bike, so maybe it's time to climb aboard a two- or three-wheeler and enjoy the health benefits of cycling. "It's socially oriented, it's fun, and it gets you outside and exercising," says Dr. Clare Safran-Norton, a physical therapist at Harvard-affiliated Brigham and Women's Hospital.

Check out the main physical benefits.

Safety considerations

Get the okay from your doctor before you climb aboard a bike, especially if you have heart disease, arthritis, or thinning bones. "If you have osteoporosis, consider riding a tricycle, which is more stable than a two-wheeler, posing less of a fall risk," says Dr. Safran-Norton. "Don't ride a bike at all if you've had a recent fracture. Another fall could make it worse."

When riding, remember that the seat height should allow a slight bend at your knee. "You don't want a straight knee at the bottom of the pedal stroke, because the bike could be too tall and you could fall off," says Dr. Safran-Norton.

Other tips: Wear a helmet to protect your head; don't use clips to keep your feet on the pedals, which can make injuries worse if you fall; don't ride alone; stick to bike paths instead of riding in the street; stay hydrated before, during, and after your ride; and use sunscreen and sunglasses.

Tips to choose equipment

You probably know that a helmet is a must for safety. The right type of clothes and bike will also make cycling safer and more comfortable.

Cycling clothes. These have high-tech fibers that wick away moisture. They are usually neon-colored, with reflective material so you'll be visible to drivers. Bike shorts have a thick pad or chamois to prevent chafing and provide cushioning.

Bikes. Look for one that puts less stress on your body, such as a beach cruiser or comfort bike. They have high-rise handlebars that enable you to sit upright, wide tires for a smooth ride, shock-absorbing seat posts, and low top tubes so you don't have to swing your leg too high to mount the bike (allow at least an inch or two of clearance between you and the tube). If mounting a bike is difficult, there are even "step through" bicycles that feature top tubes just six inches off the ground (see photo).

Other bike types include tricycles, which are helpful if you are less stable on your feet, and recumbent bikes that allow you to lean back and ride. "If you have spinal stenosis, a recumbent bike puts your spine in a flexed position and gives you pain relief. But if you have a herniated disk, the bike can make the disk bulge more," says Dr. Clare Safran-Norton, a physical therapist at Harvard-affiliated Brigham and Women's Hospital.

Saddle. Get one with extra padding that's wide enough to support the pair of bones you sit on. Go even further with a saddle that relieves pressure on the perineum, the area between those bones, behind the genitals. It's home to nerves and arteries that supply the lower body, and too much pressure here may cause numbness and tingling in the legs. Pressure-relieving saddles may have a "noseless" or horseshoe design.

The perks of group fitness classes

Fellow exercisers may keep you motivated, and learning proper form can help you avoid injuries.


 Image: Purestock/Thinkstock

Is your solo walking or cycling routine getting a little humdrum? Maybe it's time to try a group fitness class at your local gym or community center. Working out with others in a class led by a trained instructor may help you stick to an exercise routine, which is a vital part of keeping your heart healthy.

"We know that in a broad sense, the more fit you are, the longer you live," says Dr. Meagan Wasfy, a cardiologist at the Cardiovascular Performance Program at Harvard-affiliated Massachusetts General Hospital. Exactly how you achieve that fitness doesn't seem to matter—the main thing is making it happen. Group fitness classes, which come in a wide range of styles and intensities, may offer certain advantages toward that goal.

Fitness in midlife may fend off strokes later

People who are more physically fit in their mid-to-late 40s may be less likely to have a stroke after age 65 than those who are less fit.

What a personal trainer can do for you

Trainers offer extra motivation to meet your fitness goals.


 Image: Barryj13 /Thinkstock

You always want a good return on your investment, especially when you reach retirement age. That goes for your fitness, too. One of the best moves for a lucrative long-term payoff is to invest in a personal trainer.

"The exercises that worked when you were younger probably are not what you need now and going forward," says Vijay A. Daryanani, a certified personal trainer with Harvard-affiliated Spaulding Outpatient Center. "A personal trainer can identify your needs and formulate the proper routine as well as keep you motivated and focused, all of which can help keep you active."

Beating osteoarthritis knee pain: Beyond special shoes

For people suffering from knee osteoarthritis, one long-standing solution to knee pain was the use of “unloading” shoes. These shoes use stiffer soles and slightly tilted insoles that help to reposition the foot and ‘unload,’ or decrease, the pain on the knee. But a new study revealed that these shoes might not be any better than good walking shoes at relieving pain from knee osteoarthritis.

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