Acute Effects of Energy Deficit Induced by Moderate-Intensity Exercise or Energy-Intake Restriction on Postprandial Lipemia in Healthy Girls

被引:8
作者
Thackray, Alice Emily [1 ]
Barrett, Laura Ann [1 ]
Tolfrey, Keith [1 ]
机构
[1] Univ Loughborough, Dept Sport Exercise & Hlth Sci, Loughborough, Leics, England
关键词
cardiovascular disease risk; energy deficit; triacylglycerol; young people; NONFASTING TRIGLYCERIDES; ENDOTHELIAL FUNCTION; CALORIE RESTRICTION; METABOLISM; CHILDREN; TRIACYLGLYCEROL; PLASMA; REPLACEMENT; ENDURANCE; WOMEN;
D O I
10.1123/pes.2014-0096
中图分类号
R72 [儿科学];
学科分类号
100202 ;
摘要
Eleven healthy girls (mean +/- SD: age 12.1 +/- 0.6 years) completed three 2-day conditions in a counterbalanced, crossover design. On day 1, participants either walked at 60 (2)% peak oxygen uptake (energy deficit 1.55[0.20] MJ), restricted food energy intake (energy deficit 1.51[0.25] MJ) or rested. On day 2, capillary blood samples were taken at predetermined intervals throughout the 6.5 hr postprandial period before, and following, the ingestion of standardized breakfast and lunch meals. Fasting plasma triacylglycerol concentrations (TAG) was 29% and 13% lower than rest control in moderate-intensity exercise (effect size [ES] = 1.39, p = .01) and energy-intake restriction (ES = 0.57, p = .02) respectively; moderate-intensity exercise was 19% lower than energy-intake restriction (ES = 0.82, p = .06). The moderate-intensity exercise total area under the TAG versus time curve was 21% and 13% lower than rest control (ES = 0.71, p = .004) and energy-intake restriction (ES = 0.39, p = .06) respectively; energy-intake restriction was marginally lower than rest control (-10%; ES = 0.32, p = .12). An exercise-induced energy deficit elicited a greater reduction in fasting plasma TAG with a trend for a larger attenuation in postprandial plasma TAG than an isoenergetic diet-induced energy deficit in healthy girls.
引用
收藏
页码:192 / 202
页数:11
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