Posted by Tim at May 31st, 2005 in Main
Posted by Tim at May 29th, 2005 in Main
Dr. Frank M. Sacks, professor of nutrition and medicine at Harvard School of Public Health and Harvard Medical School, responds to your nutrition questions here.
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Posted by Tim at May 28th, 2005 in Main
Nancy Cole explains how to do a hamstring curl with a stability (or Swiss) ball here. Swiss ball exercises such as the hamstring curl can be incorporated into your routine to enhance your balance, strength and definition.
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Posted by Tim at May 26th, 2005 in Main
You can find an excellent primer from the Irish Nutrition and Dietetic Institute on the Glycemic Index (GI)and its relationship to a healthy weight here. The GI is a measure of how high your blood sugar gets after eating a food.
As your blood sugar increases, it may encourage your body to store fat.
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Posted by Tim at May 26th, 2005 in Main
A few days ago, my colleague blogged an article describing the results of a study that indicates a low-fat diet may reduce the recurrence of breast cancer. (See the blog posted on getfitsource.com on May 17, 2005.) To quote that article, “Women in the study who were assigned to follow a low-fat diet had more than a 20 percent reduction in their rate of recurrence over five years, the investigators found.” On the heels of that news is another study published in today's Journal of the American Medical Association that indicates that breast cancer patients who walk briskly for three to five hours per week or perform equivalent amounts of other exercise reduce their risk of dying by 50 percent. That's an amazing statisic and offers hope that healthy living may truly combat the recurrence of breast cancer. Read more about it here.
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Posted by Tim at May 26th, 2005 in Main
In this NYT article, Denise Grady describes advanced research being undertaken at the Mayo Clinic on a type of movement and calorie burning, which has been designated, NEAT, for nonexercise activity thermogenesis.
The leader of the research team, Dr. James Levine - a nutritionist, an endocrinologist and a professor of medicine - has defined the term as “the energy expenditure associated with all the activities we undertake as vibrant, independent beings.” Those activities include “occupation, leisure, sitting, standing, walking, toe-tapping, guitar playing, dancing and shopping,” he writes. His team has even measured the energy burned in gum-chewing (11 calories an hour, if you chew six pieces at a time).
The team makes painstaking and precise measurements of calories consumed and the way they are burned. They believe that if scientists can understand nonexercise activity better and identify what drives it, what makes people want to move around, they may be able to harness it to help the millions who are struggling to control their weight.
Dr Levine practises what he preaches. His computer is stationed over a treadmill, ”I work at 0.7 miles an hour,” he says. Read more about this fascinating and ground breaking work here.
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Posted by Tim at May 23rd, 2005 in Main
The basic message of this
article by John Briley of the Washington Post, which is based on a recent study appearing in the Journal of Strength & Conditioning is: Don't just rest between sets — do something. You can use the breathers to work or stretch other muscles, (but not the muscles you are working in the primary sets.) This way you may get a more time efficent workout and get out of the gym faster.
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