运动训练对老年女性脂蛋白子类颗粒度和大小的影响:随机对照试验的结果
Ryan R Porter1, Joshua R Sparks2, J Larry Durstine3
1Department of Kinesiology, Texas Christian University, Fort Worth, TX 76129, USA.
Geriatrics (Basel, Switzerland)
|December 22, 2023
概括
老年女性中等强度运动,即使在低剂量中,也改善了与心血管疾病风险降低相关的脂蛋白子类. 更高的运动剂量可能为心脏健康带来更大的好处.
科学领域:
- 心血管健康 心血管健康
- 运动生理学 运动生理学
- 脂质代谢 脂质代谢是什么
背景情况:
- 脂蛋白子类是心血管疾病 (CVD) 风险的关键指标.
- 年龄较大的女性因衰老而面临心血管疾病风险升高.
- 不同的运动剂量对这一人口群体中脂蛋白子类的影响尚不清楚.
研究的目的:
- 为了研究中等强度运动的低剂量和中等剂量如何影响老年妇女的脂蛋白子类.
- 为了确定运动干预措施是否可以改变该人群中的心血管疾病风险标志物.
主要方法:
- 随机对照试验涉及60至75岁的女性.
- 16周的中等强度运动训练,低剂量 (33.6kJ/kg/周) 或中等剂量 (58.8kJ/kg/周).
- 使用核磁共振光谱学干预前后分析的脂蛋白子类.
主要成果:
- 低剂量运动导致高密度脂蛋白颗粒 (HDL-P) 度下降,平均HDL-P大小增加.
- 中等剂量的运动导致HDL-P平均大小和低密度脂蛋白颗粒大小的增加.
- 基线因素如BMI,VO2峰值和年龄与特定脂蛋白子类的变化相关.
结论:
- 适度强度的运动,即使在低于公共卫生建议的剂量下,也对不活跃的老年女性的脂蛋白子类产生了有利的改变,这表明心血管疾病风险降低.
- 虽然观察到有益的变化,但建议使用更高的运动剂量,以获得潜在的更大的心血管健康益处.
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