精神疲劳伴随着全身表面的冷却与随后的耐力运动性能损害有关
Daiki Imai1,2, Ryosuke Takeda1, Eriko Kawai2
1Research Center for Urban Health and Sports, Osaka Metropolitan University, 3-3-138 Sugimoto, Sumiyoshi, Osaka, 558-8585, Japan.
European journal of applied physiology
|July 11, 2025
概括
冷却试验期间的精神疲劳降低了耐力运动的表现,与主观疲劳和压力激素的增加有关. 这凸显了心理劳动在暴露在寒冷中对身体极限的影响.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 环境生理学环境生理学
背景情况:
- 精神疲劳可能会影响身体表现,但其在寒冷等环境压力因素期间的影响不太清楚.
- 全身表面冷却在各种情况下使用,包括体育训练和温度调节研究.
- 了解精神疲劳,寒冷暴露和运动表现之间的相互作用对于优化运动结果和安全至关重要.
研究的目的:
- 为了确定在全身表面冷却期间由心理任务引起的精神疲劳是否会影响随后的耐力运动表现.
- 调查主观疲劳,表现变化和在暴露于寒冷和运动期间的神经内分泌反应之间的关联.
主要方法:
- 九名年轻成年人接受了两个试验:心理压力 (Stroop测试) 和控制 (视频观看),两者都使用全身表面冷却.
- 测量了80%的氧气吸收峰值的耐力循环时间到疲劳 (TE).
- 主观疲劳 (Chalder的疲劳评分) 和血类甲醇胺 (上腺素,上腺素) 和皮质醇在干预和运动前后被评估.
主要成果:
- 与对照条件相比,心理压力显著增加了主观疲劳 (CFS).
- 耐力表现 (TE) 倾向于在精神压力后下降,尽管在统计学上并不显著.
- 增加的主观疲劳与表现变化有负相关性,与诺亚上腺素水平有正相关性,表明交上腺髓活性升高.
结论:
- 精神疲劳与全身冷却相结合,可以变化地损害耐力表现,更大程度的下降与更高的主观疲劳有关.
- 增加的交上腺髓活动似乎与暴露在寒冷和炼期间的精神疲劳有关.
- 垂体-垂体-上腺轴在这些反应中没有显著的参与.
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