Predicting the Caloric Cost of the Parallel Back Squat in Women

Abstract

This study examined the relationship between work done and caloric cost during the parallel back squat. While much data are available on caloric and oxygen costs of jogging, cycling, and other physical activities, relatively little is known about the caloric cost of specific weight training exercises. Subjects were 25 women experienced in squatting through formal weight training classes or athletic conditioning workouts. Oxygen consumption was measured by standard open-circuit spirometry; nonprotein RER was used to determine caloric expenditure. External work done was calculated as weight × repetitions × vertical distance traversed by the bar. The latter was determined by analyzing videotaped exercise sessions. An R of 0.91 for external work done and net caloric cost (gross − resting), significant at 0.001, indicated that caloric cost during squats can be predicted with an acceptable degree of accuracy. The regression equation calculated was: kilocalories = 0.071 · kgm + 2.41.