Physical activity mediates a healthier body weight in the presence of obesity.


Introduction In the last decade, the numbers of overweight (body mass index (BMI) >25 kg/m) and obese (BMI >30 kg/m) people have substantially increased in Canada, New Zealand, the United Kingdom, the United States, and Western Samoa. The prevalence of obesity in the United States has grown from 12.0% in 1991 to 17.9% in 1998. Recent reports indicate that… (More)

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