Effects of different exercise timing on postprandial lipemia

• Main Authors: Wei-Chen Hsu, 徐緯珍
• Other Authors: Hsien-Chung Huang
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/90070683403855978846

碩士 === 國立中興大學 === 運動與健康管理研究所 === 100 === Purpose: Recent studies show that hypertriglyceridemia is a potential risk factor for cardiovascular disease and diabetes. Therefore, lowering postprandial hyper- triglyceridemia after a fat-meal may prevent cardiovascular disease and atherogenic process. The aim of this study was to examine the optimal exercise timing on postprandial triglyceride (TG), total cholesterol (TC), insulin and glucose responses. Methods: 7 healthy, active male subjects were participated in this study. All subjects completed 4 experimental trials in a randomized order and cross- over design: 1) exercise at 6 hours before fat-meal (EX-6hr), 2) exercise at 4 hours before fat-meal (EX-4hr), 3) exercise at 2 hours before fat-meal (EX-2hr), and 4) No exercise before fat-meal (control). Except for control group, the rest of the groups were asked to exercise at 60% VO2max for 45 minutes before an oral fat tolerance test. Blood sample were collected before meal and 30, 90, 150, 210, 270 minutes after meal. All data were analyzed by repeated designed two-way ANOVA, AUC and IACU were analyzed by repeated designed one-way ANOVA. Results: There are no significant differences in TG, TC, insulin and glucose between trials (p > .05). Postprandial lipemia seems to slightly lower in the group of exercise at 6 hours before meal compared to the control group. The IAUC of exercise at 2, 4 and 6 hours before a meal were slightly lower than the control group. Conclusions: There were no significant effects on exercise before a fat-meal on postprandial lipemia, but it seems that exercise at 6 hours before fat-meal have a downward trend on postprandial lipemia, blood glucose and insulin.