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首页> 外文期刊>Medicine and science in sports and exercise >Physiology, power output, and racing strategy of a race across america finisher.
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Physiology, power output, and racing strategy of a race across america finisher.

机译:全美比赛的生理,功率输出和比赛策略。

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摘要

The Race Across America, a 4800-km nonstop cycle race, is one of the most demanding endurance sports events. We display the racing strategy, power output, HR, hormonal levels, and inflammatory markers of an athlete before and during the race, which he completed in 10 d 23 h.The athlete showed physiological characteristics of a well-trained (nonelite) cyclist (V O2peak = 63 mL.min.kg, heart volume = 11.3 mL.kg). The race was mainly performed at low intensities (mean +/- SD: power output = 141 +/-76 W, HR = 117 +/-14 bpm). During the race, testosterone levels dropped initially by 30-40% and returned to baseline toward the end. Cortisol remained elevated throughout (+75%-90% compared with baseline). Markers of inflammation (C-reactive protein), dehydration, and protein catabolism (albumin) were not affected. The athlete used a race strategy with regular sleeping breaks (total rest = 91 h, 45 h of sleep).Contrasting conventional racing strategies for the Race Across America, which aim at minimizing sleep and maximizing ride time, our case demonstrates that by emphasizing regular recovery and sleep, such alternative strategy might lead an equally successful race result.
机译:横跨美国的比赛是一项4800公里的不间断自行车比赛,是要求最高的耐力运动项目之一。我们展示了一名运动员在比赛之前和比赛期间的比赛策略,功率输出,HR,激素水平和炎症标志物,他在10 d 23小时内完成了这项运动。该运动员表现出一位训练有素的(无色)自行车手的生理特征( V O2peak = 63 mL.min.kg,心脏容积= 11.3 mL.kg)。比赛主要在低强度下进行(平均+/- SD:功率输出= 141 +/- 76 W,HR = 117 +/- 14 bpm)。在比赛中,睾丸激素水平最初下降了30-40%,并在接近终点时恢复到基线。皮质醇始终保持升高状态(与基线相比增加了75%-90%)。炎症(C反应蛋白),脱水和蛋白质分解代谢(白蛋白)的标记不受影响。运动员使用了定期休息的比赛策略(总休息时间= 91小时,45小时睡眠),与《美国越野跑》的传统竞赛策略相反,该策略旨在最大程度地减少睡眠并最大程度地延长骑行时间,我们的案例表明,通过强调规律性的睡眠恢复和睡眠,这种替代策略可能会带来同样成功的比赛结果。

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