专业知识对Hang Power Clean和Hang Power Snatch期间肌肉活动的影响与Snatch和Clean Pulls相比 - - 一个探索性分析
Stephan Geisler1, Tim Havers1, Eduard Isenmann1,2
1Department of Fitness and Health, IST-University of Applied Sciences, Dusseldorf, Germany.
Journal of sports science & medicine
|December 4, 2023
概括
这项研究发现,在举重的拉力变化中,电肌图学 (EMG) 活动在各专业水平之间是相似的,特别是在更高的强度下. 挂力清洁器 (HPC) 和挂力抓取器 (HPS) 的肌肉激活模式在很大程度上反映了它们的仅拉力对应器.
科学领域:
- 生物力学和运动学.
- 运动科学 运动科学 运动科学
- 运动生理学 运动生理学
背景情况:
- 举重涉及复杂的运动,如挂力清洁 (HPC) 和挂力抓取 (HPS).
- 了解这些提升过程中关键肌肉的电肌图 (EMG) 活动对于性能和伤害预防至关重要.
- 举重专业知识对拉力变化期间肌肉激活模式的影响尚未完全阐明.
研究的目的:
- 为了比较Hang Power Clean (HPC) 和Hang Power Snatch (HPS) 与它们各自的拉动变体 (Hang Clean Pull - HCP,Hang Snatch Pull - HSP) 之间的EMG活动.
- 调查举重专业知识 (初学者,高级,精英) 如何影响这些运动期间的EMG活动.
- 分析不同强度的肌肉激活 (50%,70%,90% 1RM).
主要方法:
- 三个专业水平 (初学者,高级,精英) 的27名举重运动员参加了比赛.
- 参与者进行了HPC,HPS,HCP和HSP的两次重复,其一次重复最大 (1RM) 的50%,70%和90%.
- 巨大的横,大,脊柱勃起器,直腹部和梯形的EMG活动被记录并正常化.
主要成果:
- 在高强度 (70%,90% 1RM) 的初学者中,在高强度 (70%,90% 1RM) 的初学者中,在高强度和高强度的初学者中,在直肠腹部 (RA) 和勃起脊柱 (ES) 的EMG活性中发现了显著的差异.
- 在所有专业水平和强度 (50-90% 1RM) 中,勃起脊柱 (ES) 的活性在HPS期间与HSP相比显著增加.
- 不同水平的举重专业知识之间没有发现EMG整体活动模式的显著差异,特别是在70%以上的强度1RM.
结论:
- 对于HPC/HPS及其拉动衍生物的初级肌肉激活模式在很大程度上是相似的,特别是在更高的强度 (>70% 1RM) 时.
- 举重专业知识似乎并没有显著改变这些举重所涉及的主要肌肉的EMG活动模式.
- 虽然一些稳定肌肉 (RA,ES) 显示出差异,但核心运动模式在技能水平上是一致的.
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