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Updated: Jun 27, 2025

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Skeletal Muscle Gender Dimorphism from Proteomics
Published on: December 14, 2011
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男性和女性短跑运动员肌肉形态的性别差异
Robert Miller1,2, Thomas G Balshaw1, Garry J Massey3
1School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom.
Journal of applied physiology (Bethesda, Md. : 1985)
|April 25, 2024
概括
精英男性和女性短跑者具有相似的肌肉分布,这表明速度具有特定的表型. 相对的部伸缩肌体体积是男女间冲刺表现差异的关键.
科学领域:
- 运动科学 运动科学 运动科学
- 人类解剖学 人类解剖学
- 生物力学 生物力学
背景情况:
- 冲刺跑的表现显示出基于性别的显著差异.
- 肌肉形态上的差异可能解释了这些性能差异.
- 之前的研究缺乏对短跑运动员肌肉群的全面分析.
研究的目的:
- 在男性和女性短跑者之间比较腿部肌肉体积和功能组体积.
- 研究精英短跑者与对照者的肌肉体积分布.
- 确定基于性别的冲刺表现差异的决定因素.
主要方法:
- 3特斯拉磁共振成像 (MRI) 评估23个单独的腿部肌肉和5个功能组.
- 男 (n=31) 和女 (n=22) 短跑运动员之间的肌肉体积的比较.
- 分组分析:精英男性 (EM),精英女性 (EF) 和性能匹配的男性 (PMM_EF).
主要成果:
- 男性短跑运动员的肌肉体积比女性更大,肌肉之间存在差异 (部伸缩器/曲器显示最大的差异).
- 精英短跑者 (EM,EF) 在功能性肌肉群体积 (+47-53%) 中表现出均的性别差异.
- 精英男性短跑运动员的肌肉分布与精英女性的肌肉分布相似,比非运动男性的肌肉分布更相似 (P < 0.039).
- 相对部伸缩器体积,不是身高或身体脂肪,差异化性能 (PMM_EF,EF < EM).
结论:
- 虽然整体短跑者队伍在肌肉质量方面表现出性别差异,但精英短跑者具有共同的肌肉分布表型.
- 这种精英短跑运动员表型是表现的强大决定因素,而不是性别.
- 相对部伸展肌肉体积是基于性别的冲刺表现差异的主要因素.
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