在各种北欧腿筋运动中,在受伤和没有受伤的侧面之间比较腿筋肌肉活动
Taspol Keerasomboon1, Parunchaya Jamkrajang1, Weerawat Limroongreungrat1
1College of Sports Science and Technology, Mahidol University, Bangkok, Thailand.
单边北欧腿筋运动,特别是在较浅的角度,更有效地激活双腿大腿长头肌. 这一发现是正确的,不管之前的腿筋应变损伤史.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 运动医学 运动医学
背景情况:
- 北欧腿筋运动对于腿筋肌肉强度和伤害预防至关重要.
- 了解这种炼变化期间的肌肉激活模式对于优化训练方案至关重要.
研究的目的:
- 为了比较双腿骨长头和半肌的电肌图 (EMG) 活动.
- 为了研究在双边与单边同位数北欧腿筋炼期间的这些差异.
- 为了检查膝盖曲角度和腿筋应变损伤史对肌肉激活的影响.
主要方法:
- 十名身体活跃的男性有腿筋应变损伤史,进行了对称北欧腿筋运动.
- 练习是在倾斜的平台上以150°和140°的膝盖曲角度双边和单边进行的.
- 腿筋肌肉的EMG活动记录在受伤和没有受伤的腿上,与受控的膝关节外部扭矩.
主要成果:
- 双股的长头在单边运动中显示出显著更高的EMG活性,相比于双边运动 (p <0.05).
- 双股的长头活动仅在单边条件下超过了半的活动.
- 当膝关节扭矩匹配时 (p > 0.05),在不同的斜率角度中没有发现EMG活动的显著差异.
结论:
- 异比单边的北欧腿筋运动,特别是在较浅的膝盖曲角度,优先增强双腿股骨长头肌的激活.
- 这种增强的激活发生不论之前的腿筋应变损伤史.
- 单侧变异可能提供一种更有针对性的方法来加强双腿骨的长头.
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