阻力训练对中枢动脉合规性的不利影响:一项随机干预研究
Motohiko Miyachi1, Hiroshi Kawano, Jun Sugawara
1Division of Health Promotion and Exercise, National Institute of Health and Nutrition, Shinjuku, Tokyo 162-8636, Japan. miyachi@nih.go.jp
Circulation
|October 20, 2004
概括
健康男性的力量训练显著降低了心血管健康的关键指标 - - 中枢动脉合规性. 这些负面影响在放弃训练后反转,与有氧运动所见的好处不同.
科学领域:
- 心血管生理学心血管生理学
- 运动科学 运动科学
- 血管生物学 血管生物学
背景情况:
- 减少动脉顺应会对心血管功能和疾病风险产生负面影响.
- 众所周知,耐力训练可以改善健康个体的动脉顺应.
- 阻力训练对动脉遵守的影响以前不太了解.
研究的目的:
- 为了研究一个为期4个月的抵抗训练计划对健康男性动脉合规性的影响.
- 评估动脉硬度和相关心血管参数的变化.
- 为了确定脱是否会扭转任何观察到的效应.
主要方法:
- 一项随机对照试验,涉及28名年龄在20-38岁之间的健康男性.
- 干预组:4个月的监督抵抗训练 (每周3次),然后4个月的脱训.
- 对照组:维持正常活动水平.
- 测量包括动脉合规性,β-刚度指数,血压和心室指数.
主要成果:
- 在干预组中,抵抗训练显著降低了19%的动脉合规性,并增加了21%的β-刚度指数 (P<0.05).
- 这些变化在停电期间恢复到基线水平.
- 没有观察到血压,动脉内心介质厚度或灯光直径的显著变化.
- 阴道管服力降低与左心室质量和缩指数负相关.
结论:
- 几个月的力量训练可以降低健康男性的中枢动脉合规性.
- 这种效应与有氧运动对动脉遵守的已知好处形成鲜明对比.
- 观察到的动脉合规性减少在停止训练后是可逆的.
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