在动态阻力运动的不同强度期间,运动诱导的低压:一种随机对照试验
Abigail T Wilson1,2, John Pinette2, Kaitlyn Lyons1,2
1School of Kinesiology and Rehabilitation Sciences, College of Health Professions and Sciences, University of Central Florida, Orlando, Florida, United States of America.
PloS one
|April 16, 2024
概括
这项研究发现,无论是高强度还是低强度的运动,都没有显著改变健康个体的疼痛敏感性. 然而,基线疼痛敏感性与运动诱导的低痛效应有关.
科学领域:
- 运动生理学 运动生理学
- 疼痛科学 疼痛科学
- 神经肌肉功能的神经肌肉功能
背景情况:
- 运动诱导的低痛症 (EIH) 提供疼痛缓解,可能通过有条件疼痛调制 (CPM).
- 推动态抵抗运动来减轻疼痛,但对EIH的强度影响还未得到充分研究.
- 了解EIH机制对于开发有效的基于运动的疼痛干预措施至关重要.
研究的目的:
- 为了比较腿部伸展运动中的疼痛敏感度变化 (PPT),高强度与低强度与休息相比.
- 在每次干预后调查CPM的变化.
- 探索基线疼痛敏感性和EIH反应之间的相关性.
主要方法:
- 60名健康参与者接受了一项随机对照试验,比较高强度 (75% 1RM),低强度 (30% 1RM) 腿部伸展,或安静的休息.
- 疼痛值 (PPT) 和CPM在干预前后被测量为局部 (四头骨) 和远程 (形骨).
- 统计分析包括PPT和CPM变化的ANOVA和基线灵敏度关联的Pearson相关性.
主要成果:
- 没有观察到对PPT的时间,地点和干预的显著相互作用效应.
- 条件疼痛调制 (CPM) 在任何干预后都没有显著变化.
- 四头四的EIH与基线热痛值和时间总和有显著的积极关联.
结论:
- 在健康人群中,高或低强度的腿部伸展运动并没有显著改变PPT或CPM.
- 干预前的CPM测试可能会干扰运动诱导的缺痛症.
- 需要进一步的研究来澄清CPM和EIH在阻力练习期间的相互作用.
相关概念视频
01:17Non-conservative Forces
Non-conservative forces are dissipative forces such as friction or air resistance. These forces take energy away from a system as it progresses. Unlike conservative forces, non-conservative forces do not have potential energy associated with them. This is because the energy is lost to the system and cannot be turned into useful work later.
Also unlike their conservative counterparts, they are path-dependent; where the object starts and stops does matter. For example, a grinding wheel applies a...
Also unlike their conservative counterparts, they are path-dependent; where the object starts and stops does matter. For example, a grinding wheel applies a...
01:24Static, Stagnation, Dynamic and Total Pressure
The concept of static, stagnation, dynamic, and total pressure is fundamental in fluid dynamics, often explained using Bernoulli's equation: