Exercise Intensity and Longevity in Men

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Abstract
Objective. —To examine the independent associations of vigorous (≥6 resting metabolic rate [MET] score) and nonvigorous (P[trend]<.05). The relative risks of dying associated with less than 630,630 to less than 1680,1680 to less than 3150,3150 to less than 6300, and 6300 or more kJ/wk expended on vigorous activities were 1.00 (referent), 0.88, 0.92, 0.87, and 0.87, respectively (P[trend]=.007). Corresponding relative risks for energy expended on nonvigorous activities were 1.00 (referent), 0.89,1.00,0.98, and 0.92, respectively (P[trend]=.36). Analyses of vigorous and nonvigorous activities were mutually adjusted. Among men who reported only vigorous activities (259 deaths), we observed decreasing age-standardized mortality rates with increasing activity (P=.05); among men who reported only nonvigorous activities (380 deaths), no trend was apparent (P=.99). Conclusions. —These data demonstrate a graded inverse relationship between total physical activity and mortality. Furthermore, vigorous activities but not nonvigorous activities were associated with longevity. These findings pertain only to allcause mortality; nonvigorous exercise has been shown to benefit other aspects of health. (JAMA. 1995;273:1179-1184)