肌激活能否在受过适度训练的女性中歧视功能性表现? - 一个横截面研究
Marcos S A Souza1, Victória M A Valadao1, Ana I Teruyu1
1Human Movement Analysis Laboratory, Applied Physical Therapy Department, Federal University of Triangulo Mineiro, Uberaba, Brazil.
Sports biomechanics
|June 27, 2023
概括
在女性中,较高的肌激活与在六米计时跳跃测试 (STHT) 中更好的表现相关. 这一发现表明关激活水平可以预测功能表现,特别是在跳跃测试中.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 人类运动分析 人类运动分析
背景情况:
- 关节肌肉的激活对于下肢的功能至关重要.
- 了解关激活和功能表现之间的关系对于训练和康复很重要.
- 之前的研究已经探讨了关节功能,但与女性特定性能测试的直接联系需要进一步调查.
研究的目的:
- 为了确定在最大自愿收缩期间的肌激活水平是否可以在女性中区分功能表现.
- 为了在同度收缩期间比较高和低关激活的女性之间的功能性表现.
- 在功能测试中评估关节和关节最大激活的辨别能力.
主要方法:
- 45名中等训练的女性被分为高 (HG) 和低 (LG) 关激活组,基于最大自愿异位收缩 (MVIC) 测试.
- 关节激活测量了关节中部 (GMed) 和关节最大 (GMax) 肌肉,无论是单独的还是联合的.
- 使用穿运行,三次跳跃测试和六米定时跳跃测试 (STHT) 评估了功能性能.
主要成果:
- 高质激活组 (HG) 的女性在六米定时跳测试 (STHT) 中表现得明显更快,而低质激活组 (LG) 的女性则明显更快.
- 在所有评估的关激活场景 (GMed,GMax和组合) 中观察到这些显著差异.
- 效果大小 (科恩的d) 表明,STHT表现的群体之间的差异 (0.60-0.68) 是中等的.
结论:
- 肌激活水平是一个重要的因素,可以歧视女性的功能表现,特别是在六米计时跳跃测试中.
- 较高的关节激活与需要爆炸性下肢功率和稳定性的测试中性能改善有关.
- 这些发现对评估和增强女性运动员的运动表现和伤害预防策略有影响.
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