Effects of 12 weeks of endurance exercise training on thermic effect of a meal
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The purpose of the study was to examine the effects of a 12-week endurance exercise training on TEM. Male participants(19-32 yrs) in an exercise group(EX; n=9) performed jogging and/or running 3-4 d/wk, 25-40 min/session, at 60-80% VO2max, whereas subjects in control group(CON; n=10) maintained their normal life patterns. Body composition, VO2max, TEM, epinephrine, norepinephrine, total thyroxine, free thyroxine, insulin, FFA, and glucose were measured before and after the intervention. Training resulted in a significant increase in VO2max in EX. The exercise training increased total TEM, TEM per BW, TEM per FFW, and TEM per FW by 15.4%, 17.5%, 17.9%, and 27.8%, respectively, in EX. No significant changes in TEM in CON were noted. GLU measured at 30 min in EX POST increased significantly compared to EX PRE. HOMA-IR calculated at 30, 60, and 120 min during the TEM test was significantly(p<.05) higher than the resting values in both groups. Endurance exercise training increased post-prandial thermogenesis when measured for 180 min after ingestion of a ~600 kcal meal. Mechanisms include the possibility of training-induced increases in INS sensitivity and/or absorption of glucose.
Abstract
The purpose of the study was to examine the effects of a 12-week endurance exercise training on TEM. Male participants(19-32 yrs) in an exercise group(EX; n=9) performed jogging and/or running 3-4 d/wk, 25-40 min/session, at 60-80% VO2max, whereas subjects in control group(CON; n=10) maintained their normal life patterns. Body composition, VO2max, TEM, epinephrine, norepinephrine, total thyroxine, free thyroxine, insulin, FFA, and glucose were measured before and after the intervention. Training resulted in a significant increase in VO2max in EX. The exercise training increased total TEM, TEM per BW, TEM per FFW, and TEM per FW by 15.4%, 17.5%, 17.9%, and 27.8%, respectively, in EX. No significant changes in TEM in CON were noted. GLU measured at 30 min in EX POST increased significantly compared to EX PRE. HOMA-IR calculated at 30, 60, and 120 min during the TEM test was significantly(p<.05) higher than the resting values in both groups. Endurance exercise training increased post-prandial thermogenesis when measured for 180 min after ingestion of a ~600 kcal meal. Mechanisms include the possibility of training-induced increases in INS sensitivity and/or absorption of glucose.
참고문헌 (41)
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