不间断长时间坐着和动脉硬:在身体活跃的成年人中,先前有氧运动的温和效应
Sasha Riley1, Craig Paterson1, Lauren C Bates-Fraser1,2,3
1Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
European journal of applied physiology
|January 27, 2024
概括
急性有氧运动暂时减少了外围动脉硬度,但不能防止长时间坐着时增加. 需要进一步的研究,以将运动与坐姿中断相结合,以保持动脉健康.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 血管健康 血管健康
背景情况:
- 长时间坐着会急剧增加动脉硬度.
- 干扰策略在缓解这些影响方面取得了有限的成功.
- 已知急性有氧运动可以降低动脉硬度.
研究的目的:
- 为了研究在长时间坐着之前进行的急性有氧运动在维持身体活跃个体的动脉硬性的有效性.
- 为了评估前坐运动对中央和外围动脉硬标志物的影响.
主要方法:
- 一个随机的交叉设计,涉及22名年轻,活跃的个人.
- 两个条件:30分钟的步行 (EX) 或30分钟的站立 (STAND),然后是2.5小时的坐着.
- 在基线,干预后和坐下后测量臂骨关节 (bfPWV) 和腿骨脚脉冲波速度 (faPWV).
主要成果:
- 没有观察到中央动脉硬度 (bfPWV) 的显著变化.
- 外周动脉硬度 (faPWV) 在运动 (EX) 后降低,在坐前站立 (STAND) 后增加.
- 虽然运动最初降低了faPWV,但这种效果在坐着时失去了,坐着后的情况没有差异.
结论:
- 坐着之前的急性有氧运动最初显著降低了外周动脉硬度,但没有提供持久的保护作用,防止不间断坐着的有害影响.
- 未来的研究应该探索坐前运动和坐中断的联合策略,以更好地管理动脉硬.
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