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首页> 外文期刊>Biological Rhythm Research >The effect of time of day on short-term maximal performance in obese and non-obese young men
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The effect of time of day on short-term maximal performance in obese and non-obese young men

机译：一天中的时间对肥胖和非肥胖青年男性短期最佳表现的影响

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The purpose of this study was to examine time-of-day effects on short-term performance in obese young men. In a balanced study design, 30 boys were divided into two groups: obese (OG; n=15) and non-obese (CG; n=15) groups. Both groups performed anaerobic tests of strength and power (squat-Jump, SJ; counter-movement jump, CMJ; 10-m sprint; and 30-m sprint) at 08:00 and 17:00h on separate days. The results showed morning-evening differences in all variables in CG, with significant increases at 17:00h (around the time of peak temperature) in comparison with 08:00h (p<0.01) for OG. However, such morning-evening differences were not found in the OG, except for the 30-m sprint. Obesity affects the diurnal variation on performances of 30-m sprint with a significant decrease in the evening for OG of 1.23% (p<0.01). A correlation between anaerobic performance and oral temperature was observed only in the 30-m sprint test. In conclusion, the findings of the present study indicated that obesity is a problem that can affect circadian rhythms and performance in obese young men; therefore, preventing childhood obesity should become a top priority in efforts to improve performance and health.
机译：这项研究的目的是检查一天中时间对肥胖年轻男性短期表现的影响。在平衡的研究设计中，将30个男孩分为两组：肥胖（OG; n = 15）和非肥胖（CG; n = 15）组。两组分别在单独的几天的08:00和17：00h进行力量和力量的无氧测试（深蹲，SJ;反向运动跳跃，CMJ; 10分钟冲刺; 30分钟冲刺）。结果显示，CG中所有变量的早晚差异，与OG的08：00h（p <0.01）相比，在17：00h（接近峰值温度的时间）显着增加。但是，除了30米的冲刺，OG中没有发现这样的早晚差异。肥胖会影响30米短跑运动的昼夜变化，夜间OG的显着下降为1.23％（p <0.01）。仅在30 m冲刺测试中观察到厌氧性能与口腔温度之间的相关性。总之，本研究的结果表明，肥胖是一个可能影响肥胖男性昼夜节律和行为的问题。因此，预防儿童肥胖症应成为改善行为和健康的首要任务。

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