Archive for May, 2009

Increased daily exercise can prevent diabetes and cardiovascular disease in obese women, but getting started and maintaining new habits is a challenge. A new study by researchers at the Swedish medical university Karolinska Institutet shows that extra support and encouragement can help more women to exercise to and from work.

Millions of children in schools across the globe will walk, jog, bike or play games on May 6 as a part of Project ACES (All Children Exercise Simultaneously) Day. This Youth Fitness Coalition (YFC) signature program, in partnership with American College of Sports Medicine ‘s

Sportsmen and women could get the edge on their opponents by accepting more emotional support in their personal and professional lives. A study by the University of Exeter, published in the Journal of Applied Sport Psychology, shows the extent to which a sympathetic ear or regular words of encouragement can improve sports performance. Previous studies by the University of Exeter have linked ‘social support’ to performance in golf and other sports.

As most runners know, aches and pains are a common part of training. However, according to a study published in the May/June issue of Sports Health: A Multidisciplinary Approach, the real culprit for overuse running injuries, such as patellofemoral pain syndrome, iliotibial band syndrome, and Achilles tendonitis may have more to do with weakened hip muscles than how many miles run.

The summer is fast approaching and sports players will soon fill the courts, fields, greens and trails looking to get back in shape and practice their game. However, this also means there are plenty of opportunities for cuts and bruises, ankle sprains, muscle strains, and knee injuries, to name a few. Dr. William Levine, chief of sports medicine at NewYork-Presbyterian Hospital/Columbia University Medical Center, and Dr. Anil S.

The National Sports Fun Day is a free event open to the public to show that children with congenital heart defects can take part in sports activities alongside their able-bodied brothers, sisters and friends. It takes place on the 16th May 2009 11am-3:30pm at Weston Park, Shifnal, West Midlands.

As National Correct Posture Month, May is the perfect time to focus on keeping your spine healthy. University of the Sciences in Philadelphia’s Assistant Professor of Physical Therapy Dr. Greg Thielman offers simple exercises and solutions to improve your posture and avoid a lifetime of aches and pains. Posture is the position in which you hold your body upright against gravity while standing, sitting or laying down.

The summer is a great season for getting in shape, whether by playing a sport, an aerobic exercise routine, or just returning to that familiar running path — this is the time for activity. However, exercising during the warmest season of the year can lead to dehydration, profuse sweating, exhaustion, and even to a cardiac event. Dr. Holly Andersen, director of education and outreach at the Ronald O.

Very few athletic trainers associated with National Collegiate Athletic Association (NCAA) programs said that they were following best practice standards for managing asthma among their athletes, according to a new study. For athletes with asthma, the dangers of the condition can be as mild as impacting athletic performance or so severe to be incapacitating, or deadly.

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It’s fewer calories not Carbs or fluid loss responsible for weight loss.

PHILADELPHIA —  A new three-week in-hospital study of 10 volunteers found that during the two-week period on a strictly controlled very-low carbohydrate diet, participants lost an average of 3.6 pounds, voluntarily reduced their calorie intake from 3,111 calories per day to 2,164 calories per day, and did not eat more of the readily available fat and protein to make up for the lost carbohydrate calories.The study, “Effect of a Low-Carbohydrate Diet on Appetite, Blood Glucose Levels, and Insulin Resistance in Obese Patients with Type 2 Diabetes,” compared a very low-carbohydrate diet with a regular diet. It is published in the March 15, 2005, issue of Annals of Internal Medicine and is the subject of a video news release.

During the first study week, participants, who were obese and had mild type 2 diabetes mellitus, ate a regular diet in which they could eat anything and as much as they wanted. They ate about 3,000 calories and 300 grams of carbohydrates per day and remained at entry weight.

In the following two weeks, when restricted to 20 grams of carbohydrates per day, as specified in the Atkins induction diet, and despite readily available protein and fat foods, the participants voluntarily ate about 1,000 fewer calories per day, a calorie intake considered appropriate to their height.

Participants’ blood sugar improved on the low-carb diet, with better insulin sensitivity and lower blood triglycerides and cholesterol levels.

“We proved that people lose weight on the Atkins diet because they eat less (consume fewer calories), not because they get bored with the diet or lose body water or because the carbohydrate calories are treated differently by the body than fat or protein calories,” said Guenther Boden, MD, a Laura H. Carnell Professor of Medicine and chief of the division of endocrinology/diabetes/metabolism at Temple University School of Medicine.

“All the weight loss was in fat,” said Boden, the lead study author. “We weighed and measured every calorie that participants ate and every calorie they spent. We knew what went in and what went out.”

“On the very low-fat diet, participants spontaneously reduced their calories by about 1,000 per day. One gram of fat equals 9 calories, so, doing the math, you can determine how much fat will be lost by cutting 1,000 calories.”

Boden also believes that the carbohydrates actually stimulated the patients’ big appetites during the regular-diet week.

“Participants went from an excessive caloric intake to a normal caloric intake for their height and weight when we reduced their carbohydrates. This indicates to me that it was the carbohydrates that stimulated the excessive appetite,” Boden said.

Throughout the three-week study, researchers weighed all food, monitored exercise, measured participants’ calorie energy intake, expenditure and body water composition, and tested blood sugar, cholesterol, and several hormone levels believed to be involved in appetite regulation.

“You don’t have to cut carbs as drastically as participants did,” said Boden. “If you cut carbs modestly, you cut calories, and you’ll lose weight.”

“The message is: Calories count,” Boden said. “If you want to lose weight, you have to decrease your food intake or increase your physical activity. It helps to know that carbohydrates make it more difficult to reduce food intake. So cutting the carbohydrates, at least to some extent, will help keep down the caloric intake. With fewer carbohydrates, you’re going to eat fewer total calories a day.”

George A. Bray, MD, Chief, Division of Clinical Obesity and Metabolism at the Pennington Biomedical Research Center in Baton Rouge, La., and a well-known researcher in obesity and diabetes, wrote an accompanying editorial, “Is There Something Special about Low-Carbohydrate Diets?”

Bray notes that the study is small but calls it “a nicely done, short-term metabolic ward study.” He says that using “many different diets with different approaches to food restriction for individual patients at different times in their efforts to lose weight may be the most effective way a clinician can use the available diets. … (I) am not yet convinced that one diet has any more value than another — they all have value.”

Article adapted by MD Sports from original press release.

Contact: Susan Anderson
American College of Physicians