FREE-LIVING, 24-HOUR, AND SLEEPING ENERGY-EXPENDITURE IN SEDENTARY, STRENGTH-TRAINED, AND ENDURANCE-TRAINED MEN

Fifteen adult male volunteers were assigned to sedentary, moderately s trength-trained, and moderately endurance-trained groups (5 per group) to determine the effect of exercise training on energy expenditure GE E). Subjects were matched for age, weight, and height. Group appointme nts were based on activity questionnaires and American College of Spor ts Medicine standards. Subjects consumed a mixed diet of 40% fat, 20% protein, and 40% carbohydrate at weight maintenance intake for 3 weeks while continuing their exercise training programs. Then was no signif icant difference between groups for 24-hr EE measured in the controlle d environment of a room-sized calorimeter. Free-living EE measured wit h (H2O)-H-2-O-18 in endurance- and strength-trained groups was signifi cantly higher (19.4% and 35.1%, respectively) than in the sedentary gr oup. Moderate endurance and strength training increased free-living EE but did not affect 24-hr EE when groups followed standardized activit y schedules. These results suggest that increased EE caused by moderat e exercise training is limited to the energy required to complete the exercise.