缺氧状态下重复冲刺训练与全身冷冻疗法的急性反应:初步研究

IF 3.5 2区 医学 Q1 PHYSIOLOGY
Thibaud Mihailovic, Alain Groslambert, Romain Bouzigon, Simon Feaud, Grégoire P Millet, Philippe Gimenez
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引用次数: 0

摘要

目的:本研究旨在调查缺氧条件下重复冲刺训练(RSH)与全身冷冻疗法(WBC)的急性心理生理反应:16 名训练有素的自行车运动员按照随机顺序进行了 3 次训练:RSH、WBC-RSH(RSH 前的 WBC)和 RSH-WBC(RSH 后的 WBC)。对输出功率、肌肉含氧量(组织饱和度指数)、心率变异性和恢复感知进行了分析。对测试后当晚的睡眠质量进行了评估,并使用夜间 ActiGraphy 和心率变异性与对照组进行了比较:结果:不同条件下的功率输出没有差异(P = .27),而在最后一组中,WBC-RSH 的组织饱和度指数下降幅度比 RSH-WBC 小。在使用 WBC 的两种情况下,恢复感都比 RSH 高(WBC-RSH:+15.4%,RSH-WBC:+21.9%,P <.05)。RSH-WBC 夜间的运动次数明显低于对照组夜间(-18.7%,P < .01)和 WBC-RSH 夜间(-14.9%,P < .05)。与对照组夜间(P < .05)和 RSH-WBC 夜间(P < .01)相比,RSH 导致睡眠第一小时内 R-R 间期和高频段连续差值的均方根升高:在 RSH 训练中加入 WBC 不会改变功率输出,但可以通过维持肌肉氧合来改善缺氧状态下的长时间表现。单次 RSH 训练不会降低睡眠质量。WBC 对恢复感知和睡眠有积极影响,尤其是在 RSH 后进行 WBC。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Acute Responses to Repeated-Sprint Training in Hypoxia Combined With Whole-Body Cryotherapy: A Preliminary Study.

Purpose: This study aimed to investigate acute psychophysiological responses to repeated-sprint training in hypoxia (RSH) combined with whole-body cryotherapy (WBC).

Method: Sixteen trained cyclists performed 3 sessions in randomized order: RSH, WBC-RSH (WBC pre-RSH), and RSH-WBC (WBC post-RSH). RSH consisted of 3 sets of 5 × 10-second sprints with 20-second recovery at a simulated altitude of 3000 m. Power output, muscle oxygenation (tissue saturation index), heart-rate variability, and recovery perception were analyzed. Sleep quality was assessed on the nights following test sessions and compared with a control night using nocturnal ActiGraphy and heart-rate variability.

Results: Power output did not differ between the conditions (P = .27), while the decrease in tissue saturation index was reduced for WBC-RSH compared to RSH-WBC in the last set. In both conditions with WBC, the recovery perception was higher compared to RSH (WBC-RSH: +15.4%, and RSH-WBC: +21.9%, P < .05). The number of movements during the RSH-WBC night was significantly lower than for the control night (-18.7%, P < .01) and WBC-RSH (-14.9%, P < .05). RSH led to a higher root mean square of the successive differences of R-R intervals and high-frequency band during the first hour of sleep compared to the control night (P < .05) and RSH-WBC (P < .01).

Conclusions: Inclusion of WBC in an RSH session did not modify the power output but could improve prolonged performance in hypoxia by maintaining muscle oxygenation. A single RSH session did not deteriorate sleep quality. WBC, particularly when performed after RSH, positively influenced recovery perception and sleep.

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来源期刊
CiteScore
5.80
自引率
12.10%
发文量
199
审稿时长
6-12 weeks
期刊介绍: The International Journal of Sports Physiology and Performance (IJSPP) focuses on sport physiology and performance and is dedicated to advancing the knowledge of sport and exercise physiologists, sport-performance researchers, and other sport scientists. The journal publishes authoritative peer-reviewed research in sport physiology and related disciplines, with an emphasis on work having direct practical applications in enhancing sport performance in sport physiology and related disciplines. IJSPP publishes 10 issues per year: January, February, March, April, May, July, August, September, October, and November.
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