APH 1999, 57, 185-196:

Association between physical activity level and obesity prevalence: recent cross-sectional and longitudinal data.  A review.

M. Hulens, G. Vansant, R. Lysens, and A.L. Claessens

Keywords: obesity, physical activity, epidemiology, follow up

In general physical activity level is inversely associated with adiposity. Most of the evidence showing this relationship came from cross-sectional data. However, recently more cross-sectional and follow-up studies have been performed. Larger populations were examined and/or more precise methods to estimate physical activity were used. These investigations have emphasized again the importance of habitual physical activity and regular exercise, in preventing overweight and obesity. These recent studies are reviewed in the article.