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首页> 外文期刊>British journal of sports medicine >Exercising with reserve: exercise regulation by perceived exertion in relation to duration of exercise and knowledge of endpoint.
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Exercising with reserve: exercise regulation by perceived exertion in relation to duration of exercise and knowledge of endpoint.

机译：有储备地进行锻炼：通过感知的运动量来调节运动量，这与运动的持续时间和终点知识有关。

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OBJECTIVE: The purpose of this study was to examine ratings of perceived exertion (RPE) and performance during repetitive maximal effort 40 km time trials as well as after an intervention that aimed to decrease certainty about the remaining distance of the exercise bout. In addition, we examined the RPE during exercise bouts of markedly different duration. METHODS: Part 1: 12 well-trained, competitive-level cyclists completed five 40 km time trials. During the final time trial all feedback was withheld until the final kilometre. In addition, to cause confusion about the remaining distance, they were asked to report their RPE at random intervals from 18 km to 38 km. Part 2: 6 well-trained, recreation-level cyclists randomly completed a 5 km, 10 km, 40 km and 100 km time trial. RESULTS: Part 1: Mean RPE increased during the first four trials and decreased during the final trial. The rate of RPE progression increased in linearity during the first four trials and became more conservative in the final trial. These changes were directly related to performance. Part 2: Mean RPE for longer duration trials (40 km, 100 km) were lower during the first half of trial duration but matched those of shorter trials in the final 20%. CONCLUSIONS: Increased familiarity of the exercise bout and certainty about its endpoint are associated with a more aggressive RPE strategy that produces a superior exercise performance. Certainty about the endpoint and the duration of exercise affect both the RPE strategy and performance.
机译：目的：本研究的目的是在40 km重复最大努力期间以及旨在降低运动回旋剩余距离确定性的干预措施之后，检查感知劳累（RPE）和表现的等级。另外，我们检查了运动周期明显不同的RPE。方法：第1部分：12名训练有素的竞技水平自行车手完成了5次40公里的计时赛。在最后的计时赛中，所有反馈都被保留，直到最后一公里。此外，为了引起剩余距离的混乱，他们被要求以18 km至38 km的随机间隔报告其RPE。第2部分：6位训练有素的娱乐级别自行车手随机完成了5公里，10公里，40公里和100公里的计时赛。结果：第1部分：平均RPE在前四次试验中增加，而在最终试验中下降。 RPE进展的速度在前四次试验中呈线性增加，而在最后的试验中变得更为保守。这些变化与性能直接相关。第2部分：较长时间试验（40 km，100 km）的平均RPE在试验时间的前半段较低，但在最后20％中与较短试验的平均RPE相匹配。结论：对运动搏动的熟悉程度提高以及对运动终点的确定性与更积极的RPE策略相关，该策略可产生出色的运动表现。关于终点和运动持续时间的确定性会影响RPE策略和性能。

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