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跨越速度频谱的腿筋与四肢骨比例的基于性别的比较
Samantha Searles1, James Hood2, Morgan Wood1
1Mississippi State University, Mississippi State, Mississippi.
Sports health
|February 15, 2025
概括
这项研究发现,腿筋与四肢体比率 (HTQ) 没有基于性别的差异,这表明其他因素可能解释了为什么女性比男性受伤膝盖更多.
科学领域:
- 生物力学 生物力学
- 运动医学 运动医学
- 人体生理学 人体生理学
背景情况:
- 与男性相比,女性的膝盖受伤发生率更高.
- 这种差异通常归因于较低的腿筋与四头肌比率 (HTQ),特别是在高速运动中.
研究的目的:
- 调查腿筋与四头肌比率 (HTQ) 的潜在基于性别的差异.
- 为了比较不同速度的男性和女性之间的肌肉力量和激活模式.
主要方法:
- 超声波成像用于测量27名参与者 (14名女性,13名男性) 的四头四腿和腿筋肌肉横截面积 (CSA).
- 峰值扭矩 (PT) 在最大自愿同度收缩 (MVICs) 和在60°至300°s-1的速度下同运动腿部延伸/屈曲时进行评估.
- 统计分析包括独立样本t测试和混合因子ANOVA,以比较性别之间的CSA,PT和HTQ.
主要成果:
- 与女性相比,男性的四头四腿和腿筋肌肉CSA和峰值扭矩 (PT) 在腿部延伸和曲方面显著增加 (P < .01).
- 在所有测试速度 (P ≥ .11) 中,从CSA或PT中获得的腿筋与四头肌比率 (HTQ) 没有发现基于性别的显著差异.
- 两性都显示,随着速度的增加,腿部延伸PT的减少,以及跨速度HTQ的类似模式,最初增加后出现平原.
结论:
- 该研究的结果表明,腿筋与四头肌比率 (HTQ) 没有基于性别的差异.
- 假设较低的HTQ有助于增加女性膝关节受伤风险的假设,这项研究没有支持.
- 超出HTQ的因素,如神经肌肉控制或解剖学差异,可能对在膝盖受伤倾向中观察到的基于性别的差异产生更大的影响.
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