最小剂量耐力训练可以增强力量,而不会影响绝经妇女的心脏自主调节:一项随机临床试验
Rayra Khalinka Neves Dias1, Eduardo Macedo Penna2, Ádria Samara Negrão Noronha1
1Graduate Program in Human Movement Sciences, Federal University of Pará, Belém, Pará, Brazil.
在更年期妇女的四周内,最小阻力训练 (RT) 改善了肌肉力量. 然而,心脏自主和血液动力学测量,以及功能能力,在这种低容量RT协议下没有显著变化.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 老年学是一门学科.
背景情况:
- 最小剂量耐力训练 (RT) 正因其潜在的健康益处而受到越来越多的关注.
- 之前的研究表明,低容量RT协议可以增强强度和功能能力.
- 需要进一步的研究来了解最小剂量RT对特定人群中各种生理参数的影响.
研究的目的:
- 研究最低剂量RT协议对更年期妇女的强度,功能能力,心脏自主调节和血液动力学参数的影响.
- 为了确定一个小量的RT干预是否可以在这个人口群体中引起显著的生理适应.
主要方法:
- 二十六名绝经妇女被随机分配到一个训练组 (TG) 或控制组 (CG) 四周.
- 该TG执行最小剂量RT每周两次 (8-12次重复的2组,3板),而CG接受了讲座和伸展.
- 力量 (1RM长椅压力,腿压力),功能能力,心脏自主 (LnRMSSD,LniRR) 和血液动力学参数在干预前和后被评估.
主要成果:
- 训练组在一次重复最大 (1RM) 长椅压力和1RM腿部压力方面显著增加.
- 随着时间的推移,观察到LniRR显著增加.
- 对于大多数变量来说,没有发现显著的组间差异,尽管对于LnRMSSD和1RM长板压力来说,注意到了群体*时间相互作用.
结论:
- 最小剂量的RT协议有效地改善了更年期妇女的肌肉力量,持续了四周.
- 心脏自主和血液动力学变量以及功能能力保持稳定,并未受到最小剂量RT干预的显著影响.
- 这项研究表明,虽然最小的RT可以增强力量,但更广泛的生理益处可能需要更年期妇女不同的或更广泛的协议.
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