Effect of exercise timing on postprandial lipemia and HDL cholesterol subfractions |
| |
Authors: | Zhang, John Q. Thomas, Tom R. Ball, Stephen D. |
| |
Abstract: | The purpose ofthe study was to examine the effect of exercise timing on postprandiallipemia responses. Subjects were 21 recreationally trained men (ages 27 ± 1.7 yr). Each subject performed four trials:1) Control (fat meal only),2) Post (exercise 1 h after a fat meal), 3) 1 h-Pre(exercise 1 h before a fat meal), and4) 12 h-Pre (exercise 12 h before afat meal). In each trial, subjects had a standard fat meal to inducepostprandial hypertriglyceridemia. Blood samples were taken at 0 h(immediately before the fat meal) and at 2, 4, 6, 8, and 24 h after themeal. In the exercise trials, each subject exercised at 60% of maximalO2 consumption for 1 h. Theresults indicated that triglyceride area under the curve scores inpremeal-exercise trials were lower (P < 0.05) than those in Post and Control. At 24 h, total high-densitylipoprotein (HDL)-cholesterol in the premeal-exercise trials was higher(P < 0.05) than that at 0 h, whereastotal HDL-cholesterol was not changed in Control and Post. At 24 h, HDLsubtype 2-cholesterol was higher (P < 0.05) in the premeal-exercise trials than in Control, which did not differ from Post. These results suggest that exercising before a fatmeal may have a beneficial effect on the triglyceride response and HDLmetabolism, which may blunt atherosclerotic process induced by the fatmeal. |
| |
Keywords: | |
|
| 点击此处可从《Journal of applied physiology》浏览原始摘要信息 |
|
点击此处可从《Journal of applied physiology》下载全文 |
|