在精英冲刺和跳跃运动员和娱乐活动控制器之间,腿筋肌单元几何和功能的差异
Stephanie L Lazarczuk1,2,3, Andrea H Hams2,3, Phillip M Bellinger2,4
1Department of Sport and Health, Southampton Solent University, Southampton, UK.
Scandinavian journal of medicine & science in sports
|October 25, 2025
概括
精英运动员拥有较大的腿筋肌肉和较高比例的II型肌肉纤维,与娱乐活动的个人相比. 这些解剖学差异显著提高了冲刺和力量表现.
科学领域:
- 生物力学和运动生理学
- 肌肉解剖学和生理学 肌肉解剖学和生理学
背景情况:
- 腿筋肌几何结构和纤维类型组成对于运动表现至关重要.
- 以前的研究还没有全面地比较精英运动员和娱乐活跃个体之间的这些特征.
研究的目的:
- 为了比较精英短跑者/跳跃者和娱乐活动人士之间的腿筋肌肉形状和肌肉纤维类型学.
- 为了研究这些腿筋特征与冲刺/力量表现之间的关系.
主要方法:
- 使用磁共振成像 (MRI) 和光谱检查来评估腿筋肌几何学 (截面面积/体积) 和肌肉类型学 (I/II型纤维的比例).
- 包括精英冲刺/跳跃运动员 (n=15) 和娱乐活动人士 (n=15).
- 进行了冲刺和异常膝盖曲器强度测试.
主要成果:
- 与对照组相比,精英运动员表现出明显更大的腿筋肌肉,包括特定的脊髓瘤和自由肌.
- 精英运动员的II型肌肉纤维估计比例高 (1.5倍).
- 腿筋几何和类型学解释了最大冲刺速度 (R2=0.65) 和古怪的膝盖屈曲器强度 (R2=0.59) 的实质性差异.
结论:
- 精英短跑者和跳跃者具有明显的腿筋结构 (较大的肌肉,肌,肌) 和组成 (较高的II型纤维比例) 特性.
- 这些适应性与卓越的冲刺和力量能力密切相关.
- 研究结果强调了腿筋形态对于精英运动员表现的重要性.
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