严重的部分睡眠剥夺会减弱对骑自行车运动的血压反应
Julian C Bommarito1, Rileigh K Stapleton1, Nathan S Murray1
1Human Cardiovascular Physiology Laboratory, Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada.
American journal of physiology. Heart and circulatory physiology
|August 23, 2024
概括
在健康的成年人中,部分睡眠剥夺 (PSD) 在运动期间意外降低了缩血压. 这种效应在男性中更为明显,与PSD会增加运动血压的假设形成鲜明对比.
科学领域:
- 运动生理学 运动生理学
- 心血管监管 监管心血管系统
- 睡眠科学 睡眠科学
背景情况:
- 过度的运动血压 (BP) 反应预测了未来的高血压.
- 已知部分睡眠剥夺 (PSD) 会提高24小时的门诊血压.
- 对于PSD对运动BP反应的影响尚不清楚.
研究的目的:
- 为了研究急性部分睡眠剥夺 (PSD) 在骑自行车运动期间对血压 (BP) 反应的影响.
- 为了测试PSD增加BP响应恒定负载循环和20分钟计时试验的假设.
主要方法:
- 一个随机交叉试验,涉及22名健康成年人.
- 参与者接受了正常睡眠计划或部分睡眠剥夺 (40%的正常持续时间).
- 运动方案包括12分钟的热身和20分钟的骑自行车计时赛.
主要成果:
- 部分睡眠剥夺 (PSD) 在计时试验期间没有影响运动功率输出.
- 在热身的后期阶段和20分钟的计时赛中,PSD显著减轻了缩血压.
- 观察到性别特异性差异,在男性中减轻了缩血压,但在PSD后的女性中没有.
结论:
- 与假设相反,急性PSD在中度和高强度自行车运动期间减弱了缩性血压反应.
- 在PSD之后观察到的缩血压减弱似乎主要是由男性的反应驱动的.
- 这些发现强调了睡眠状态,运动强度和性对心血管调节的复杂相互作用.
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