Inspiratory muscle training can help improve sport performance

Washington, June 4 (ANI): Strengthening inspiratory muscles by performing daily breathing exercises can reduce the amount of oxygen these muscles require during exercise, a new American study has found.

The Indiana University research, “Inspiratory Muscle Training reduces the Oxygen Cost of Breathing during Exercise,” was presented June 3 at the American College of Sports Medicine annual meeting.

Louise Turner, a researcher in the Department of Kinesiology, said just the act of breathing during an endurance activity, such as running, swimming or cycling performed at maximum intensity, can account for 10 to 15 percent of an athlete””s total oxygen consumption.

While inspiratory muscle training (IMT) has been shown to improve performance in endurance sports, Turner””s study sought to shed light on how IMT does this.

She said: “This study helps to provide further insight into the potential mechanisms responsible for the improved whole-body endurance performance previously reported following IMT.”

The double blind, placebo-controlled study involved 16 male cyclists ages 18 to 40.

IMT involves the use of a hand-held device that provides resistance as one inhales through it, requiring greater use of inspiratory muscles.

For half of the study participants, the IMT device was set to a level that provided resistance as the subjects took a fast forceful breath in.

For six weeks they took 30 breaths at this setting twice a day.

The cyclists in the control group did the same exercises with the IMT adjusted to a minimal level.

After six weeks, when the study participants mimicked the breathing required for low, moderate and maximum intensity activities, the inspiratory muscles required around 1 percent less oxygen during the low intensity exercise and required 3 to 4 percent less during the high intensity exercise. (ANI)

Pool fitness: Different strokes for aquatic folks

(Reuters Life!) – Young or old, active or aching, just about everyone can buoy their workout by plunging into the pool, fitness experts say.

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But whether you’re swimming laps or pedaling inside an inner tube, there’s more to aquatic fitness than just splashing around.

“Swimming is just a great overall fitness activity. You’re using all your muscle groups, balancing your body in that environment,” said Dr. Barbara Bushman, an expert with the American College of Sports Medicine.

Even at the shallow end aquatic exercises can improve balance in older people and help anyone with joint or orthopedic problems to stay fit.

“Anytime you’re in the water you can basically unweight the body,” Bushman explained. “There’s the support of fluid around you.”

Bushman, a professor at Missouri State University who describes herself as a runner forced into the pool by a stress fracture of the tibia, admits she is not a good swimmer.

“The only thing my doctor cleared me for was deep water running. The deeper the submergence, the greater the resistance,” she explained.

“In the pool you have to focus on good form. My form actually improved.”

Attention to form is just as important if you’re swimming for fitness.

“Take a few lessons so you can sustain that 20 to 30 minutes of aerobic activity you need, Bushman advises, “and learn different strokes for interval training and variety.”

As group fitness manager at Equinox in New York, Mark Hendricks oversees the gym’s Aqua Fitness classes, where, he says, 75 to 80 percent of the attendees are over 50 years old.

“We try to maintain their mobility,” Hendricks said. “So many individuals lose range of motion as they get older. There’s lots of spinal rotation. We move thru different planes of motion in the water.”

Core work and suspension training, with the feet not touching bottom in the pool are part of the routine. He also uses small foam dumbbells and aqua gloves for resistance training.

“If you run in the pool you have much less skeletal pounding, and when you get older that’s a wonderful thing,” he said. “At that age you’re not looking for a six pack, you’re looking to play with your grandkids.”

And sometimes to forge social relationships as well.

The Senior Splashers Swim Team, average age 63, has been meeting regularly at a YMCA at Brooklyn, New York, for about six years.

“We started as part of the water aerobics program and found that we enjoyed being with one another,” said team member Clara McDonald.

“Many of us have had replacement shoulders, knees, hips. We’ve had all kinds of orthopedic issues, but we want to make sure we stay in as good physical shape as we can possibly muster,” she explained.

“People come for physical therapy, find they like the water and decide they want to learn how to swim,” she added.

Coach Richard Akers says learning to swim builds confidence at any age.

“Taking non-swimmers and seeing them develop builds my ego continuously,” he said.

For Splash member Earl Patton the rewards go beyond muscle tone.

“What I get in the water is really therapeutic. Doing the butterfly I think about a large whale, a breaststroke is like exploring the water. Without swimming I don’t think I could complete the day.”

Exercise therapy effective for low back pain sufferers

Washington, Apr 20 (ANI): An exercise machine designed specifically for back muscles could offer fresh hope to low back pain sufferers, say researchers.

The finding has been published in the Journal of the American College of Sports Medicine.

Low back pain (or lumbago) is a common ailment often triggered by something as simple as lifting a suitcase.

“If you want to bring about physiological change to help the development and endurance of back muscles, you must focus your training on those specific muscles and not other muscular groups such as hip extensors,” says Christian Larivière, a professor at the Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST), who conducted the study with Université de Montréal researchers Bertrand Arsenault, Rubens A. Da Silva, Sylvie Nadeau, André Plamondon et Roger Vadeboncoeur.

The investigation requested that subjects aged 18 to 65 – some healthy and others with low back pain – complete various exercises. Electromyography (EMG) sensors were used to measure the level of activity and fatigue in various muscles during the routine. “Thanks to this technique, we can target tired muscles which aren”t yet showing a decrease in strength,” says Larivière.

Test subjects also used a machine designed for back exercises in a semi-sitting position. Results clearly showed that using this machine was beneficial. Using a cushion to stabilize the pelvis brought about a better response from the back muscles. In addition, extending the legs strengthened muscles. “Therefore, we can decrease the use of hip muscles and in turn increase the use of the back muscles,” says Larivière.

Such exercises can only help reduce pain and disabilities caused by back pain, says Larivière.

He recommends those who suffer severe hurt begin with stretches on the ground with low to medium effort. “Progressively, the individual will gain confidence and can use machines that require superior strength,” he says. (ANI)

Cherry juice could be the new sports drink

Washington, May 29 (ANI): Natural anti-inflammatory power of tart cherries may help ease the pain for people who run, says a new study.

The research from Oregon Health and Science University, which has been presented at the American College of Sports Medicine Conference in Seattle, Wash, showed people who drank tart cherry juice while training for a long distance run reported significantly less pain after exercise than those who didn’t.

In the study of sixty healthy adults aged 18-50 years, those who drank 10.5 ounces cherry juice twice a day for seven days prior to and on the day of a long-distance relay had significantly less muscle pain following the race than those who drank another fruit juice beverage. On a scale from 0 to 10, the runners who drank cherry juice as their “sports drink” had a 2 point lower self-reported pain level at the completion of the race, a clinically significant difference.

While more research is needed to fully understand the effects of tart cherry juice, researchers say the early finding indicate cherries may work like common medications used by runners to alleviate post-exercise inflammation.

“For most runners, post-race treatment consists of RICE (rest, ice, compression and elevation) and traditional NSAIDS (non-steroidal anti-inflammatory drugs),” said Kerry Kuehl, M.D., a sports medicine physician and principal study investigator.

“But NSAIDS can have adverse effects – negative effects you may be able to avoid by using a natural, whole food alternative, like cherry juice, to reduce muscle inflammation before exercise,” the researcher added.

The researchers suggest cherries’ post-exercise benefits are likely because of the fruit’s natural anti-inflammation power – attributed to antioxidant compounds called anthocyanins, which also give cherries their bright red color. (ANI)

Massage after exercise impairs blood flow to the muscle

Washington, May 8 (ANI): If you think that massage after exercise improves blood flow to the muscle, better think again, for a study conducted by Canadian scientists at Queen’s University suggests the contrary.

The researchers say that their study debunks the myth that massage after exercise improves circulation to the muscle, and assists in the removal of lactic acid and other waste products.

“This dispels a common belief in the general public about the way in which massage is beneficial,” says Kinesiology and Health Studies professor Michael Tschakovsky.

“It also dispels that belief among people in the physical therapy profession. All the physical therapy professionals that I have talked to, when asked what massage does, answer that it improves muscle blood flow and helps get rid of lactic acid. Ours is the first study to challenge this and rigorously test its validity,” he adds.

Kinesiology MSc candidate Vicky Wiltshire and Dr. Tschakovsky set out to test the truthfulness of the never-tested belief that massage aids in the removal of lactic acid from muscle tissue.

Their study showed that massage actually impairs blood flow to the muscle after exercise, and that it, therefore, also impairs the removal of lactic acid from muscle after exercise.

A presentation on the study will be made at the annual American College of Sports Medicine conference, which runs from May 27 to 30 in Seattle, Washington.(ANI)

Exercise cuts risk of breast cancer death

Washington, Mar 25 (ANI): Women who are physically fit are less likely to die from breast cancer, says a new study.

The findings of the study by researchers at University of South Carolina Arnold School of Public Health are published in the April issue of Medicine and Science in Sports and Exercise, the official scientific journal of the American College of Sports Medicine.

The study of more than 14,000 women found that those with moderate or high aerobic fitness levels were much less likely to die from breast cancer, said Dr. Steve Blair, an Arnold School researcher and a past president of the American College of Sports Medicine.

“Women in the study’s lowest fitness category were nearly three times more likely to die from breast cancer than women in the most fit group,” he said.

“We believe this is the first study to evaluate the association of objectively measured fitness and risk of dying from breast cancer,” he said.

“The results suggest a stronger protective effect than has been seen in most studies on self-reported physical activity and breast cancer, probably because the objective laboratory test of fitness is more accurate that self-reports of activity,” he added.

To reach the conclusion, Blair and his research team studied women from 20 to 83 years of age who had no previous history of breast cancer. The study participants received an initial medical examination that included a maximal exercise test on a treadmill, between 1973 and 2001, and were monitored for breast cancer mortality through 2003.

“The good news is that women who do at least 150 minutes of moderate-intensity activity, like walking, per week will escape the low fitness category. Even better for some women, this activity can be accumulated in 10-minute bouts,” he said.

In addition, the study found that women with high aerobic fitness had lower body mass index, better cholesterol levels, lower blood pressure, and fewer chronic conditions such as diabetes and cardiovascular disease. (ANI)

Exercise cuts breast cancer death risk by three times

Melbourne, Mar 23 (ANI): A new study by University of South Carolina researchers has found that women who work out are three times less likely to die of breast cancer.

The study indicated that aerobically fit women are three times less likely to die of the disease than those who seldom exercise.

For the study, researchers examined 14,000 women who were given preventive medical exams and treadmill tests at the Cooper Clinic in Houston from 1970-2001.

At the time of their exams, the women, ages 20 through 83, had no history of breast cancer.

Based on the treadmill tests, the women’s fitness was classified as low, moderate or high.

Researchers compared the fitness levels of the 68 women in the study group who had died of breast cancer through 2003.

“Women in the study’s lowest fitness category were nearly three times more likely to die from breast cancer than women in the most fit group,” the Daily Telegraph quoted Dr. Steve Blair, a USC researcher and a past president of the American College of Sports Medicine, as saying.

To reach the moderate fitness category, women need to exercise about 150 minutes per week. High fitness translates to 300 minutes per week.

“Finding a strong association between fitness, which can be improved by the relatively inexpensive lifestyle intervention of regular physical activity, such as walking, is exciting,” Blair said.

The study has been reported in the April issue of the scientific journal Medicine and Science in Sports and Exercise. (ANI)