在60天的床上休息后,实际行走速度的变化
Marcello Grassi1,2, Fiona Von Der Straten3, Charlotte Pearce3
1Sylvia Lawry Center for Multiple Sclerosis Research e.V., Munich, Germany.
NPJ microgravity
|January 12, 2024
概括
60天的床上休息显著降低了现实世界的行走速度 (RWS),然后恢复. 这种RWS变化与最大氧气吸收或垂直跳跃功率的变化无关.
科学领域:
- 人类生理学 人类生理学
- 太空医学 太空医学
- 运动科学运动科学
背景情况:
- 长时间的床上休息,在太空飞行和临床环境中常见的情况,导致脱节.
- 现实世界步行速度 (RWS) 是一种功能性指标,可能反映生理变化.
- 了解卧床休息后的RWS变化对于评估恢复和制定对策至关重要.
研究的目的:
- 为了研究60天的床上休息对RWS的影响.
- 为了检查RWS在14天的重新行走期间的恢复情况.
- 探索RWS下降和心肺呼吸能力 (VO2max) 和肌肉功率 (JUMP) 的变化之间的关系.
主要方法:
- 24名受试者被分配到持续的人工重力,间歇的人工重力或对照组.
- 在60天的床上休息期之后,进行了14天的恢复阶段.
- 线性混合效应模型分析了RWS,VO2max和JUMP的变化.
主要成果:
- 在60天的床上休息后,观察到RWS显著下降 (p < 0.001).
- 在14天的康复期内,RWS显著增加 (p < 0.001).
- 没有发现RWS损失和VO2max或JUMP损失 (分别为p=0.81和p=0.173) 之间有显著的相关性.
结论:
- 六十天的床上休息会导致RWS显著下降,这表明降低了条件.
- 在重新行走期间,RWS会恢复,这反映了身体的适应过程.
- 卧床休息后的RWS变化与VO2max或最大跳跃功率的变化无关,这表明有不同的生理反应.
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