随着并发的运动会后,脚 flexors 的 H-反射, V-波和收缩性质的变化 - - 急性干扰效应
Miguel Gomes1,2, André D Gonçalves1,2, Pedro Pezarat-Correia1,2
1Neuromuscular Research Lab, Faculdade de Motricidade Humana, Universidade de Lisboa, Cruz Quebrada, Dafundo, Portugal.
Journal of applied physiology (Bethesda, Md. : 1985)
|December 27, 2024
概括
同时运动 (CE) 挑战肌肉力量和耐力. 这项研究发现,耐力运动最常影响扭矩发展和神经反应,而抵抗运动则影响中央驱动. 这两种CE类型都降低了脊柱运动神经元的响应能力.
科学领域:
- 运动生理学 运动生理学
- 神经肌肉适应的过程
- 运动科学 运动科学 运动科学
背景情况:
- 同步炼 (CE) 结合了阻力和耐力训练,但面临着影响运动表现的干扰效应.
- 了解不同炼方式及其序列的急性神经肌肉后果对于优化训练至关重要.
- 之前的研究强调了同时炼对力量和耐力的影响的复杂性.
研究的目的:
- 调查仅抵抗 (R),仅耐力 (E) 和CE会话对肌肉力量和神经生理参数的急性影响.
- 为了确定CE的序列 (耐力-耐力与耐力-耐力) 是否影响这些神经肌肉结果.
- 为了阐明与运动同时发生的急性干扰效应背后的神经肌肉病因.
主要方法:
- 经过抵抗和耐力训练的10名男性接受了基线神经肌肉评估,包括最大自愿同度收缩 (MVIC) 和索莱斯引起的反应.
- 参与者完成了随机的E,R,E-R和R-E运动会,并在运动后立即重复神经肌肉评估.
- 测量包括MVIC,扭矩发展速度 (RTD),M波,H波,V波,唤起的八度和抽收缩性质.
主要成果:
- 所有的炼方式都减少了MVIC和RTD;耐力炼导致了比抵抗炼更大的RTD下降.
- 抵抗运动会损害脊柱上驱动力 (V波),而耐力和CE训练会减少脊柱运动神经元反应能力 (H反射).
- 耐力和CE课程损害了抽收缩性质,并引起了八度反应,仅耐力运动显示出最显著的减少.
结论:
- 同时炼严重损害神经肌肉功能,耐力炼显著导致扭矩发展和神经反应能力的缺陷.
- CE的序列不会改变脊柱运动神经元响应能力受损的程度.
- 这些发现为神经肌肉干扰效应提供了关键的见解,指导运动员的炼计划.
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