Why Overweight Women Struggle To Slim Down

Moderate exercise helps middle-aged women avoid putting on the pounds, but only if they are already a normal michael kors handbagsweight, a new study suggests. Women who are overweight or obese do not appear to reap the same benefits in terms of weight-gain prevention, the researchers say.
Weight-loss programs can help people shed the pounds, but many people have trouble keeping it off. The new results could help women figure out how much exercise is sufficient to keep from tipping the scales again.
"The weight creeps back on again, [and] people put on all the weight they've lost, and sometimes more," study author michael kors outletI-Min Lee of Brigham and Women's Hospital and Harvard Medical School in Boston, Mass.
In addition, the study lends insight to national recommendations on exercise. For instance, the current U.S. federal guidelines say people should get 150 minutes of moderate-level activity per week to obtain health benefits and reduce the risk of chronic diseases. But the guidelines say nothing about weight-gain prevention. The Institute of Medicine, a non-governmental U.S. organization, recommends that people get an hour of moderate michael korsexercise a day, or 420 minutes per week to prevent obesity.
Such drastically different recommendations deserve clarification, Lee said.
Counting pounds
The study involved more than 34,000 women in the United States, and looked at how much weight they gained over a 13-year period, from 1992 to 2007.
The women were divided into three groups: those who engaged in less than 150 minutes of moderate-level physical activity per week; those who performed 150 to 420 minutes of this type of activity per week; and those who did more than 420 minutes per week, which comes out to one hour a day. Moderate-level activities included things like brisk walking, gardening and leisurely bicycling.
On average, the women gained about 6 pounds (2.6 kilograms) during the study period. Those in the two lesser activity groups (less than 150 minutes or between 150 and 420 minutes) gained significantly http://www.michaelkorshandbagsoutletweb.com more weight than those who exercised more than 420 minutes a week.
While more physical activity was associated with less weight gain, this finding only held true for "normal" weight women, those with body mass index (BMI) of 25 or less. (BMI is calculated with a carrera sunglasses person's height and weight and is considered an indicator of body fatness. An adult with a BMI between 25 and 29.9 is considered overweight.)
"Among heavier women, there was no relationship between how much [activity] a women did and what weight she gained," Lee said.
However, Lee notes that the physical activity levels included in the study were not very high, and higher levels might be more sufficient at preventing weight gain.
The results are published in the http://www.carrera-glasses.com March 24 issue of the Journal of the American Medical Association.
How much should I exercise?
mengwawa1010 mengwawa1010
31-35, F
May 12, 2012