提高运动任务表现:口头鼓励和音乐的效果-随机交叉研究的关键结果与电肌图数据的随机交叉研究
Filippo Cotellessa1, Nicola Luigi Bragazzi2, Carlo Trompetto1,3
1Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, 16132 Genoa, Italy.
Sports (Basel, Switzerland)
|August 28, 2024
概括
音乐和口头鼓励等外部刺激通过改善运动单元的招募来显著提高未经训练的个体的耐力任务持续时间. 接受培训的个体没有显著的表现变化,可能是由于动机上限效应.
科学领域:
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
- 神经科学是一个神经科学.
背景情况:
- 众所周知,外部的动机刺激可以提高运动表现.
- 底层的神经生理机制需要进一步阐明.
- 了解这些机制可以优化训练和表现.
研究的目的:
- 研究音乐和口头鼓励在耐力任务期间对肌肉活动的神经生理影响.
- 为了比较未受过训练和受过训练的个体之间的这些影响.
- 探索这些刺激如何影响肌肉刺激和疲劳指标.
主要方法:
- 采用了一种随机交叉研究设计.
- 参与者在标准,音乐和口头鼓励的三个条件下完成了消耗的耐力任务.
- 肌肉激发和肌电疲劳在双臂肌和臂肌肌肉中被测量.
主要成果:
- 未经培训的受试者通过音乐 (15.26%) 和口头鼓励 (15.85%) 增加了任务持续时间.
- 这两种刺激都降低了趋势系数,表明随着时间的推移,动力单元的招聘效率更高.
- 接受培训的参与者在条件之间没有显著差异,这表明潜在的动机上限效应.
结论:
- 外部动机刺激显著提高了未受过训练的个体的耐力表现.
- 音乐和口头鼓励通过优化动力单元招募策略来提高任务持续时间.
- 动机可能会在训练有素的人身上产生上限效应,限制从外部刺激中获得进一步的绩效.
相关概念视频
01:04Social Facilitation
Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
01:22Muscle Stimulation Frequency
The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...