Tremblay et al (1) examined observations of 1366 women and 1257 men who participated in the 1981 Canada Fitness Survey. Subjects were tested for energy expenditure of leisure-time activities and estimated VO2 max. Body fat was measured using skinfolds and anthropometric measurements were also made. Subjects were divided into 4 subgroups based upon the METS for their leisure time activities. FINDINGS: Subjects engaging in the most intense forms of exercise had the lowest skinfolds and waist-to-hip ratios. These differences remained statistically significant after the effect of total energy expenditure of leisure-time activity on body fat and fat distribution was removed by covariance analysis. The waist-to-hip ratio also remained significantly lower for individuals engaging in high-intensity exercise after the effect of subcutaenous fat on fat distribution was accounted for.
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