身体活动和动脉硬:身体脂肪是一个调解者吗?
Brantley K Ballenger1, Sydni L Carter2, Grant Norman2
1Department of Kinesiology, Mississippi State University, Mississippi State, MS, USA. bkb248@msstate.edu.
European journal of applied physiology
|August 14, 2023
概括
身体脂肪百分比调解了总体体力活动和动脉硬之间的联系. 增加体力活动可以降低身体脂肪,从而减少动脉硬,即使在老年人中.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 生物医学工程 生物医学工程
背景情况:
- 身体活动 (PA) 和体脂百分比 (%BF) 是动脉硬的已知独立预测因素.
- %BF在PA和动脉硬之间关系中的潜在调解作用以前没有被研究过.
研究的目的:
- 为了检查%BF是否调解了PA或久坐行为水平和动脉硬之间的关系.
主要方法:
- 50名成年人 (28±11岁) 进行了动脉硬度 (CF-PWV),通过生物电阻测量%BF和通过加速度计测量PA水平的带-大腿脉冲波速率 (CF-PWV) 的测量.
- 加速度计数据量化了静坐,轻度,中度至强度体力活动 (MVPA) 和总体PA的时间.
主要成果:
- 在年龄,%BF,CF-PWV,MVPA和总PA (r = 0.340.65,p < 0.05) 之间观察到显著的相关性.
- %BF显著调解了总PA和CF-PWV之间的关系 (间接影响:β = -0.34,p = 0.02).
- 总PA还显示对%BF有显著的直接影响 (β = -0.28,p = 0.04),而%BF对CF-PWV有显著的影响 (β = 0.26,p = 0.03).
结论:
- 身体脂肪百分比调解了总体体力活动和动脉硬之间的关联,而不依赖年龄.
- 增加总体身体活动可能有助于减少身体脂肪,从而降低动脉硬度.
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