使用同度坐强度来预测年轻和年长成年人的同心和偏心坐强度
Michael T Dunn1,2, Phuong T M Quach1, Monica McGraw1
1Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
概括
最大自愿的等比式俯卧强度可以预测老年人1RM俯卧强度,为评估肌肉强度提供更安全的替代方案. 这一发现有助于为背部伸展肌肉设计有效的康复计划.
科学领域:
- 生物力学 生物力学
- 老年学是一门学科.
- 运动生理学 运动生理学
背景情况:
- 抵抗性坐运动可以增强背部延伸肌肉和骨的强度.
- 评估1次重复最大 (RM) 强度对于康复至关重要,但会带来风险,特别是对老年人来说.
- 有效的康复计划设计需要更安全的评估方法.
研究的目的:
- 为了确定最大自愿的等比式俯卧强度和1RM同心和偏心俯卧强度之间的预测关系.
- 为了比较年轻 (21-35岁) 和老年 (55-75岁) 成人的这些关系.
- 建立方程来预测1RM强度从同度测量.
主要方法:
- 涉及年轻人和老年人的横截面研究.
- 在两周内进行两次测试访问.
- 测量了自发的最大同度式腰强度 (IsoMax) 和1RM的集中式 (ConMax) 和偏心式 (EccMax) 背部腰强度,所有这些都根据体重正常化.
主要成果:
- 在老年人中,同度式俯卧强度 (IsoMax) 显著预测了集中式 (ConMax) 和偏心式 (EccMax) 俯卧强度 (p=0.003).
- 对于老年人来说,我们得出了预测方程:正常化的ConMax = 0.708 + 1.376 (正常化的IsoMax) 和正常化的EccMax = 0.844 + 1.433 (正常化的IsoMax).
- 在年轻成年人中观察到IsoMax-ConMax关系的显著性趋势 (p=0.058).
结论:
- 最大自愿的等比式俯卧强度是老年人1RM俯卧强度的安全有效预测指标.
- 在老年人群中,新的预测方程使得定制的康复策略能够加强背部肌肉和骨.
- 这项研究为这一群体提供了一个比传统的1RM测试更安全的替代方案.
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