Barrett Laura A, Morris John G, Stensel David J, Nevill Mary E
Children's Health and Exercise Research Centre, School of Sport and Health Sciences, University of Exeter, United Kingdom.
Med Sci Sports Exerc. 2006 Jul;38(7):1282-7. doi: 10.1249/01.mss.0000227313.08599.b8.
To investigate whether a single session of intermittent games activity would reduce postprandial lipemia.
Twelve male volunteers completed three 2-d trials: rest, continuous exercise, and intermittent games activity. Trials were performed a minimum of 6 d apart in a balanced crossover design. In the rest trial, subjects took no exercise on day 1. On day 1 of the continuous and intermittent games trials, subjects completed four blocks (approximately 15 min per block) of uphill treadmill walking or intermittent games activity with 3 min of rest between each block. On day 2, subjects came to the laboratory for an oral fat tolerance test (blood taken fasted and for 6 h following a high-fat test meal (1.25 g of fat and 1.07 g of carbohydrate per kilogram of body mass)).
The intermittent games protocol elicited a higher exercise intensity than the continuous trial (lactate: 4.3+/-0.6 vs 2.4+/-0.3 mmol.L; % VO2max: 72+/-2 vs 62+/-1, respectively; mean+/-SE). The total area under the plasma triacylglycerol (TAG) concentration versus time curve was lower in both the intermittent games (25%, P=0.001) and the continuous (19%, P=0.028) trials than in the rest trial.
These findings show for the first time that intermittent games activity can reduce postprandial lipemia, and confirm that continuous exercise reduces postprandial lipemia in young adults.
研究单次间歇性游戏活动是否会降低餐后血脂。
12名男性志愿者完成了三项为期2天的试验：休息、持续运动和间歇性游戏活动。试验采用平衡交叉设计，间隔至少6天进行。在休息试验中，受试者在第1天不进行运动。在持续运动和间歇性游戏试验的第1天，受试者完成四个阶段（每个阶段约15分钟）的跑步机上坡行走或间歇性游戏活动，每个阶段之间休息3分钟。在第2天，受试者来到实验室进行口服脂肪耐量试验（在高脂试验餐（每千克体重1.25克脂肪和1.07克碳水化合物）后禁食采血并持续6小时）。
间歇性游戏方案引发的运动强度高于持续运动试验（乳酸：4.3±0.6 vs 2.4±0.3 mmol.L；最大摄氧量百分比：分别为72±2 vs 62±1；平均值±标准误）。间歇性游戏试验（25%，P = 0.001）和持续运动试验（19%，P = 0.028）中血浆三酰甘油（TAG）浓度与时间曲线下的总面积均低于休息试验。
这些发现首次表明间歇性游戏活动可降低餐后血脂，并证实持续运动可降低年轻人的餐后血脂。
