Date of Award

8-2008

Degree Name

Master of Science

Department

Health, Physical Education, and Recreation (to 2011)

First Advisor

Dr. Christopher Cheatham

Second Advisor

Dr. Tim Michael

Third Advisor

Dr. Michael Miller

Access Setting

Masters Thesis-Campus Only

Abstract

Excess post-exercise oxygen consumption (EPOC) is defined as an increase in oxygen consumption (VO2 ) following the completion of exercise. Previous research has primarily focused on the influence of endurance-type exercise on EPOC. Therefore, the purpose of this study was to compare the effect of a light versus heavy resistance exercise protocol of equal work on EPOC. Ten male subjects performed two days of onerepetition maximum (1-RM) testing and two experimental trials (Light: 3 sets of 15 repetitions at 40% 1-RM; Heavy: 4 sets of 4 to 8 repetitions at 80 to 87.5% 1-RM). VO2, caloric expenditure, blood lactate concentration, heart rate, and blood pressure were measured at baseline, 5, 15, 30, 60, 90 and 120 minutes post-exercise, and 24 hours postexercise. For both exercise protocols, VO2 and caloric expenditure were significantly greater at 5 min post-exercise compared to baseline. In addition, at 5 min post-exercise, VO2 and caloric expenditure were greater during the light protocol compared to the heavy protocol. During the 120 minutes post exercise, there was no significant difference in EPOC (44.0 ± 43 and 39.1 ± 44.3 mL·kg- 1 ; P = 0.786) or total caloric expenditure (15.1 ± 13.8 and 12.9 ± 16.9 kcal; P = 0.742) between the light and heavy protocols. The data suggests that for resistance exercise protocols with an equal work volume, there is no difference in the magnitude and duration of EPOC.

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