在用低水平激光预曝光进行缺血性神经肌肉电刺激后,训练效益和运动单元重塑
Yi-Ching Chen1,2, Chia-Chan Wu3, Yen-Ting Lin4
1Department of Physical Therapy, College of Medical Science and Technology, Chung Shan Medical University, Taichung City, TAIWAN.
Medicine and science in sports and exercise
|October 7, 2025
概括
低级激光疗法 (LLLT) 在神经肌肉电刺激 (NMES) 与血流限制 (BFR) 训练期间增强力输出. LLLT提高了神经肌肉效率和运动协同效应的灵活性,在次最大收缩期间保持力扩展.
科学领域:
- 运动医学 运动医学
- 康复科学 康复科学 康复科学
- 生物医学工程 生物医学工程
背景情况:
- 神经肌肉电刺激 (NMES) 结合血流限制 (BFR) 是有效的预防肌肉缩,当传统的阻力训练是不可行的.
- 然而,疲劳可能会限制NMES-BFR干预的有效性.
- 低水平激光疗法 (LLLT) 正在研究作为一种潜在的人体效应助力,以减轻疲劳和提高训练效果.
研究的目的:
- 调查低水平激光疗法 (LLLT) 是否可以在联合NMES-BFR手腕延伸训练期间提高神经肌肉性能.
- 确定LLLT是否通过在NMES-BFR期间提高神经肌肉效率和运动控制来作为人体效应辅助剂.
主要方法:
- 30名成年人被随机分为两个组:BFR和BFR+LLLT.
- 两组人都接受了为期3周的NMES-BFR手腕延伸训练方案,用于他们的非主导肢体.
- 在每次会议之前,BFR+LLLT组接受了850nm的LLLT (60J) 延伸器 carpi radialis longus (ECRL),而对照组接受了假治疗.
主要成果:
- 与BFR组相比,BFR+LLLT组的测试后/测试前最大自发收缩 (MVC) 比率明显更高 (P = .004).
- 虽然强力跟踪误差没有差异,但训练在BFR+LLLT组中诱导了动力单元放电策略的更明显变化.
- 在BFR+LLLT组中,LLLT增强了电机协同灵活性,由更的回归斜率和降低的共同驱动指数 (CDI) 表明.
结论:
- 在NMES-BFR训练后,对LLLT的预暴露显著增加了力输出.
- 通过增加运动协同效应的灵活性,LLLT可以提高神经肌肉效率,这有助于在次最大收缩期间保持力扩展.
- LLLT显示出作为一种 ergogenic 辅助来增加 NMES-BFR 协议中的培训适应性的潜力.
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