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2003 MAY 8 - (NewsRx.com & NewsRx.net) -- A new study from the Harvard School of Public Health finds that women who avoid sedentary behaviors such as watching television more than 10 hours per week and incorporate a 30-minute brisk walk into their day, reduce the risk of onset of type 2 diabetes by 43% and obesity by 30% compared to women with sedentary lifestyles.
The findings appear in the Journal of the American Medical Association.
Using data from the Nurses' Health Study, the researchers assessed the physical activity and sedentary behaviors of more than 68,000 women over a span of 6 years and the relationship to onset of type 2 diabetes and obesity. At the start of the study the women completed a questionnaire about physical activity and sedentary behaviors; follow-up questionnaires were sent every 2 years. Participants had to be free of diabetes, heart disease, cancer and have a body mass index (BMI) of 30 or under.
During the 6 years of follow-up, more than 3700 women who had a BMI less than 30 at the start of the study became obese and more than 1500 new cases of type 2 diabetes were diagnosed. The researchers found that compared with women who spent less than 2 hours per week watching TV, those who spent at least 3 hours per day watching TV had a 40% increased risk of obesity and a 30% increased risk of type 2 diabetes. Those who spent at least 5 hours per day watching TV had a two-fold increased risk of obesity ...
Source: HighBeam Research, Women who reduce sedentary behaviors reduce risk for diabetes,...