随机与常规会话的急性神经肌肉疲劳,重复站立,长跃
Sylvain Dhote1, Philippe Gimenez1, Sidney Grosprêtre1,2
1EA4660, C3S Culture Sport Health Society, University of Franche-Comté, Besançon, France.
Journal of sports science & medicine
|December 9, 2024
概括
随机练习,不同的跳跃强度,和积木练习,以恒定的强度,同样降低了体力表现和神经肌肉疲劳. 然而,随机实践对参与者来说更令人愉快.
科学领域:
- 运动科学 运动科学 运动科学
- 神经肌肉生理学 神经肌肉生理学
- 运动生理学 运动生理学
背景情况:
- 有限的研究存在于随机练习 (不同强度) 与块练习 (恒定强度) 对神经肌肉反应的急性影响.
- 了解不同的跳跃强度如何影响急性神经肌肉疲劳对于优化训练方案至关重要.
研究的目的:
- 为了研究随机与恒定的强度重复跳跃练习的急性神经肌肉效应.
- 为了比较随机练习 (RA) 和持续练习 (CO) 对身体表现和神经肌肉疲劳的影响.
主要方法:
- 15名健康的参与者进行了两次90分钟的练习,其中20分钟的练习包括疲不堪的重复站立远跳 (SLJ).
- 一个会话涉及恒定跳跃长度 (CO),而另一个会话涉及随机跳跃长度 (RA).
- 神经肌肉评估包括反运动跳跃 (CMJ),SLJ,最大自发同度收缩 (MViC),EMG和肌反射 (T-反射).
主要成果:
- 无论是CO还是RA,都导致MViC,CMJ性能,EMG活动和T-反射幅度的显著下降.
- 在RA和CO条件之间没有观察到性能下降或神经肌肉疲劳的显著差异.
- 与会者报告说,在RA课程后,与CO课程相比,参与者在RA课程后感受到的乐趣和表现明显更高.
结论:
- 在练习期间随机变化的跳跃强度会导致可比的急性神经肌肉疲劳和性能下降,而当训练负载相匹配时,常量强度练习.
- 尽管有相似的生理结果,随机实践在参与者享受和感知的表现方面提供了显著的优势.
- 这些发现表明,将随机练习纳入可能有利于在涉及重复跳跃任务的培训计划中的坚持和动机.
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