Aftereffects of Exercise upon Resting Metabolic Rate

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Abstract
Resting metabolic rates of two healthy middle-aged male subjects were tested twice a week during a six-week exercise program. On one day each week observations were made at 2–4–6–8–hr. intervals following the exercise bout; on the other day observations were made at corresponding times, but without exercise. The results of a total of 38 pairs of observations indicated a statistically significant increase in metabolic rate for a period of 6 hr., returning to approximately the pre-exercise level in 8 hr. The mean increase for the two subjects for the first 6 hr. following exercise was 4.39 kcal/m2/hr. or a total cost of 53 kcal. per day over and above the metabolic cost of the activity itself. The implications of the metabolic aftereffects of exercise making a contribution in a weight reduction program are discussed.

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