Energy replacement diminishes the postprandial triglyceride-lowering effect from accumulated walking in older women
Energy replacement diminishes the postprandial triglyceride-lowering effect from accumulated walking in older women
复制标题
能量替代可减少老年女性因累积步行而降低餐后甘油三酯的效果
DOI：
10.1007/s00394-020-02234-z
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发表时间：
2020
影响因子：
5
通讯作者：
Stensel D.
中科院分区：
文献类型：
--
作者：
Miyashita M;Hamada Y;Fujihira K;Nagayama C;Takahashi M;Burns SF;Thackray AE;Stensel D.
研究目的：通过饮食替代急性运动引起的能量不足，抵消运动对年轻男性和中年男性餐后甘油三酯（TG）的降低作用。目前还不清楚这些发现是否在老年人积累运动时观察到。本研究探讨了影响积累短回合的运动，饮食替代和不运动引起的能量赤字，对餐后TG在老年women.MethodsSeventeen老年妇女（≥ 65岁）进行了三个，8小时的试验：（1）控制，（2）积累步行和（3）积累步行能量替代。在对照试验期间，参与者休息8小时。累积步行试验包括以预先确定的自选步速进行的20次1.5分钟快走，间隔15分钟的坐位休息。在每项试验中，参与者都吃标准化的早餐和午餐。能量补充试验中的早餐包括补充运动引起的能量不足（0.62 MJ，149 kcal）。结果累积步行后8h的血清TG浓度明显低于对照组和能量补充累积步行组（平均值± SD：分别为1.46 ± 0.93 vs 1.71 ± 1.01 vs 1.60 ± 0.98 mmol/L：试验p的主效应= 0.017）。控制和累积步行与能量replacement.ConclusionsReplacing的能量消耗引起的积累30分钟的快步走在短（1.5分钟）的回合减少了老年妇女的餐后TG降低效果。
PurposeDietary replacement of an acute exercise-induced energy deficit offsets the postprandial triglyceride (TG)-lowering effect of exercise in young boys and middle-aged men. It is unclear whether these findings are observed when exercise is accumulated in older adults. This study examined the effect of accumulating short bouts of exercise, with and without dietary replacement of an exercise-induced energy deficit, on postprandial TG in older women.MethodsSeventeen older women (≥ 65 years) underwent three, 8-h trials: (1) control, (2) accumulated walking and (3) accumulated walking with energy replacement. During the control trial, participants rested for 8 h. The accumulated walking trials comprised twenty 1.5 min brisk walking bouts performed at a pre-determined self-selected pace separated by 15 min seated rest. In each trial, participants consumed a standardised breakfast and lunch. The breakfast in the accumulated walking with energy replacement trial included replacement of the energy deficit (0.62 MJ, 149 kcal) induced by exercise. Venous blood samples were collected fasted and at 2, 4, 6 and 8 h after breakfast.ResultsTime-averaged postprandial serum TG concentrations over 8 h were lower after accumulated walking than control and accumulated walking with energy replacement (mean ± SD: 1.46 ± 0.93 vs 1.71 ± 1.01 vs 1.60 ± 0.98 mmol/L, respectively: main effect of trialp= 0.017). There was little difference between control and accumulated walking with energy replacement.ConclusionsReplacing the energy expenditure induced by accumulating 30 min of brisk walking in short (1.5 min) bouts diminishes the postprandial TG-lowering effect in older women.