EXCESS POST-EXERCISE OXYGEN CONSUMPTION (EPOC) FOLLOWING DIFFERENT INTENSITIES OF CYCLING BOUTS IN COLLEGE-AGED MALES
Jeremy Ryan Townsend
University of West Florida
Master of Science (MS), University of West Florida
2015
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Abstract
The purpose of this study was to investigate if a moderately-intense bout of aerobic exercise or multiple maximal bouts of anaerobic exercise yield a larger magnitude and length of excess post-exercise oxygen consumption (EPOC). Six recreationally-trained males (mean +/- SD: age = 23.3 +/- 1.4, weight kg = 81.8 +/- 9.9, height cm = 180.8 +/- 6.3) completed 2 cycling bouts of different intensities. Trials consisted of a 30-min cycling bout at 40-60% of heart rate reserve (HRR) and 3 repeated anaerobic Wingate cycling tests. Baseline oxygen consumption (VO2) was determined by an average VO2 of the final 5 min of a 30-min supine rest period prior to each trial. Following trials, VO2 was measured for 30 min or until baseline measures were reached. Baseline oxygen consumption remained elevated (p < 0.01) above baseline for the first 8 min following the aerobic bout and during the entire recovery period following the anaerobic trial (p . 0.01). A greater (p . 0.05) post-exercise VO2 and a larger (p < 0.01) EPOC magnitude was observed at each period following the anaerobic cycling bout. An excess expenditure of 9 kcals and 28 kcals were observed during recovery in the aerobic and anaerobic bouts, respectively.