There is considerable evidence that exercise is beneficial in reducing the risk of cardiovascular disease.1-5 Most studies have compared athletes with nonathletes, or have examined a middle-aged population with already elevated blood lipids. It is not clear whether moderate exercise in a healthy but sedentary adult population can have beneficial effects on blood lipids. Some data support this contention,3,4 but other investigators question whether exercise, independent of other factors such as diet, smoking habits and adiposity, can alter the blood lipid profile.5.
Bibliographical noteFunding Information:
and RR0039 from the National Institutes of Health, Bethesda, Mary-cine, Atlanta, Georgia. This study was supported by grants DK26657 The effects of this exercise program on VO2 max and land. Manuscript received September 14, 1988; revised manuscript metabolic rate have been reported.6 The average VO2 received and accepted October 3 1, 1988. max (in ml . kg-l - min) before exercise training was