24小时活动周期和心血管结果:使用动脉硬性作为中间结果确定生物可信性
Lee Stoner1,2,3, Simon Higgins1, Craig Paterson1
1Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States.
American journal of physiology. Heart and circulatory physiology
|September 22, 2023
概括
包括体力活动和睡眠在内的24小时活动周期会影响心血管疾病的风险. 了解这些行为,特别是久坐时间和睡眠,是防止血管衰老和促进心脏健康的关键.
科学领域:
- 心血管生理学心血管生理学
- 时间生物学 时间生物学
- 运动科学 运动科学
背景情况:
- 24小时活动周期 (24-HAC) 整合了体力活动和睡眠,影响了心血管健康.
- 目前关于体力活动的指导方针缺乏关于久坐行为和轻度活动的机械细节.
- 对于日常行为对心血管结果的独立和综合影响的理解有限.
研究的目的:
- 为24-HAC与心血管疾病的关系提出一个生物学上可信的工作模型.
- 确定动脉硬性作为关键的中间结果,将活动行为与血管功能障碍联系起来.
- 阐明受久坐行为,体力活动和睡眠影响的机械路径.
主要方法:
- 基于现有文献的概念模型开发.
- 血液动力学,自主,代谢和荷尔蒙因素的整合.
- 专注于动脉硬性作为血管衰老的生物标志物.
主要成果:
- 久坐不动的行为和长时间的静止姿势可能会通过静脉聚合和随后的生理变化增加动脉硬度.
- 通过改善内皮功能,中度至强度的体力活动 (MVPA) 提供了显著的心脏保护.
- 睡眠质量和持续时间不佳会对生理变量产生负面影响,可能会对活动行为产生混的反应.
结论:
- 拟议的模型强调动脉硬性是24-HAC对心血管健康影响的核心因素.
- 基于机制的策略和保护行为可以减轻血管功能障碍.
- 需要进一步的研究来完善对24-HAC内心血管疾病预防的复杂相互作用的理解.
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