Effects of split exercise sessions on excess postexercise oxygen consumption and resting metabolic rate.
This study involved examining how splitting a 30-min exercise bout on a cycle ergometer into two equal sessions affects excess postexercise oxygen consumption (EPOC) and resting metabolic rate (RMR). In this study, 10 male volunteers (age = 23+/-3.8) participated in two exercise trials, which were randomly assigned in a counterbalanced design and separated by 40 hr. One trial was 30 min of exercise at 70% VO(2)max (CONT), followed by a 40-min measurement of EPOC. The second trial was divided into two 15-min sessions (SPLIT), separated by 6 hr. A 20-min measurement of EPOC followed each SPLIT session. Results indicated that the combined magnitude of EPOCs from SPLIT (7,410+/-1,851 ml) was significantly greater than that from CONT (5,278+/-1305 ml). Data indicate that dividing a 30-min exercise session in to two parts for these individuals significantly increases magnitude of EPOC but does not affect RMR.
Almuzaini
K S
KS
Department of Health, Sport and Exercise Sciences, University of Kansas, 101 Robinson Center, Lawrence, KS 66045, USA.
Potteiger
J A
JA
Green
S B
SB
D000328:Adult; D000704:Analysis of Variance; D001642:Bicycling; D004734:Energy Metabolism / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D006339:Heart Rate; D006801:Humans; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology*; D010806:Physical Education and Training / Q000379:methods*; D011897:Random Allocation