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探索女性四头肌活动变化:在爬楼梯时坐姿的作用

SaBin Chun¹, JongChul Park^2,3

¹Department of Physical Education, Pukyong National University, Busan, Republic of South Korea.

|November 26, 2024

概括

长时间坐在脚交叉膝盖 (SAC) 姿势中,在下楼阶梯时暂时降低大中肌 (VM) 肌肉活动. 这一发现对于治疗膝关节疼痛和加强女性四头肌至关重要.

科学领域:

生物力学生物力学
人类运动科学科学人类运动科学
肌肉骨健康肌肉骨健康

背景情况:

现代成年人花费大量时间坐着,可能会影响四头肌的功能和日常活动.
不同的坐姿可能会影响四头肌的特征和性能.
了解这些影响对于维持功能移动性和预防肌肉骨问题至关重要.

研究的目的:

为了研究不同坐姿如何影响爬楼梯和下楼梯期间的四头肌活动.
根据特定的坐姿来确定肌肉激活模式的潜在差异.
提供关于长时间坐在下肢生物力学上的功能影响的见解.

主要方法:

三十名健康的成年女性参与了这项研究,分为三个坐姿组:坐直 (SU),坐着双腿交叉 (SLC) 和坐着双脚交叉 (SAC).
电肌扫描测量了在爬楼梯和下楼之前和15分钟保持坐姿后,巨大的中部肌肉 (VM),巨大的侧面肌肉 (VL) 和直骨肌肉 (RF) 的肌肉活动.
统计分析包括ANOVA,Kruskal-Wallis,LSD,配对t测试和Wilcoxon签名等级测试,以比较组和前/后测量.

主要成果:

在保持姿势后,SAC组的楼梯下降期间观察到广中间肌 (VM) 肌肉活动显著下降 (p = 0.047).
与测试的坐姿相关的巨侧面 (VL) 或直骨骨 (RF) 活动没有显著变化.
结果表明,SAC姿势在楼梯下降的异常阶段对VM激活有特定的影响.

结论:

保持脚交叉膝盖 (SAC) 坐姿可以导致在下楼阶梯时大中肌 (VM) 肌肉活动的暂时减少.
这一发现对早期干预策略有影响,旨在控制膝关节疼痛和增强四头肌强度,特别是在女性中.
建议进行进一步的研究,重点是患有骨关节疼痛综合征或现有的膝关节疼痛的人,以阐明坐姿对四头四肢功能的全部影响.

关键词:

肌肉活动肌肉活动四头肌肌肉肌肉四头肌肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌肉肌坐着的位置坐着的位置在楼梯上行走.女人女人女人女人女人

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