Effect of Fat and CHO Meals on Intermittent Exercise in Soccer Players
Effect of Fat and CHO Meals on Intermittent Exercise in Soccer Players
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DOI：
10.1055/s-0032-1321798
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发表时间：
2013-02-01
影响因子：
2.5
通讯作者：
Doran, D. A.
中科院分区：
文献类型：
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作者：
Hulton, A. T.;Edwards, J. P.;Doran, D. A.
建议运动员在运动前进食含有碳水化合物（CHO）的食物，尽管有证据表明运动前进食高脂肪食物会增加脂肪的利用率，但可能不会对运动成绩产生不利影响。本研究调查了高强度间歇性运动前高脂肪和高CHO运动餐的效果。10名男性休闲足球运动员进行了足球特定的协议，然后在摄入2种测试餐（高脂肪餐（HFM）或高CHO餐（HCM））之一后3 1/2小时进行1公里计时试验。血糖，脂肪酸（FA），甘油，β-羟基丁酸酯，乳酸和胰岛素进行了评估，在餐前，运动前，半时间，和运动后，而CHO和脂肪氧化率在运动期间的4个时间点，以及心率（HR）和自认为的努力（RPE）评级确定。HFM后FA、甘油、β-羟基丁酸和脂肪氧化显著增加，而HCM后CHO氧化显著增加（P < 0.05）。1 km计时试验未发现性能影响（HFM：228.6 ± 14.4 s; HCM：229.4 ± 26.5 s）（平均值± SD）。这些研究结果表明，在足球模拟运动之前摄入的膳食类型对新陈代谢有影响，但对本研究中确定的随后的表现没有影响。
Pre-exercise meals containing carbohydrates (CHO) are recommended to athletes, although there is evidence to suggest that a high fat meal prior to exercise increases utilisation of fats yet may not adversely affect performance. This study investigated the effect of a high fat and high CHO pre-exercise meal prior to high intensity intermittent exercise. Ten male recreational soccer players performed a soccer specific protocol followed by a 1 km time trial 3 1/2 h after ingesting one of 2 test meals, high fat meal (HFM) or a high CHO meal (HCM). Blood glucose, fatty acids (FA), glycerol, beta-hydroxybutyrate, lactate and insulin were assessed prior to the meal, pre-exercise, half-time, and post-exercise, whilst rates of CHO and fat oxidation were determined at 4 time points during the exercise as well as heart rate (HR) and rating of perceived exertion (RPE). Significant increases in FA, glycerol, beta-hydroxybutyrate and fat oxidation after the HFM were observed, while CHO oxidation was significantly higher following the HCM (P < 0.05). No performance effect was found for the 1 km time trial (HFM: 228.6 + 14.4 s; HCM: 229.4 + 26.5 s) (mean+SD). These findings suggest that the type of meal ingested prior to soccer simulated exercise has an impact on metabolism, but not on the subsequent performance as determined in the present study.