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用部延伸和北欧部练习来进行抵抗训练的腿筋肌几何适应

Stephanie L Lazarczuk^1,2,3, Tyler J Collings^1,2, Andrea H Hams^1,2

¹School of Health Sciences and Social Work, Griffith University, Gold Coast, Queensland, Australia.

Scandinavian journal of medicine & science in sports

|September 19, 2024

概括

像北欧和部延伸这样的有针对性的腿筋运动导致肌肉生长,但显示出有限的肌 - 脊髓炎变化. 部延伸训练增加了双腿大腿长头肌体积与接口面积的比率,这表明了潜在的组织应变影响.

科学领域:

生物力学生物力学
运动生理学运动生理学
肌肉骨适应肌肉骨适应

背景情况:

众所周知,阻力训练会诱导肌肉缩.
特定训练方式对腿筋肌和神经瘤几何学的影响在很大程度上仍未被探索.
了解这些适应对于优化训练方案和预防伤害至关重要.

研究的目的:

为了研究10周的北欧或部延伸炼干预措施对腿筋肌肉,自由肌和脊髓神经突变几何学的影响.
为了比较干预组和对照组之间肌-肌神经瘤体积,接口面积和肌肉体积与接口面积比率的变化.
使用统计参数映射分析区域肌肉横截面积 (CSA) 变化.

主要方法:

30名休活动的男性被随机分为北欧,部延伸或对照组 (每组n=10).
腿部的磁共振成像 (MRI) 在10周的干预之前和之后进行.
测量包括自由肌和肌瘤体积,双腿骨长头 (BFlh) 肌瘤体积的接口面积和肌肉体积与接口面积的比率.

主要成果:

与对照组相比,北欧组观察到半膜状自由肌体积的显著增加.
两组之间没有发现其他腿筋自由肌或肌神经病的显著差异.
与北欧和对照组相比,部延伸组显示BFlh肌肉体积与接口面积比率的增加更大.
两组干预组都表现出肌肉CSA的增加,特别是在半和BFlh中间部分.

结论:

十周的北欧或部延伸训练显示出有限的肌-肌神经复发性缩的证据.
部延伸训练增强了BFlh肌肉体积与接口面积的比率,可能会影响局部组织菌株.
替代负荷策略可能是必要的,以有效地通过运动来刺激腿筋肌的适应.

关键词:

这就是为什么MRI是MRI.双腿肌 (femoris biceps) 是一个腿部肌肉的组成部分.接口区域接口区域的区域.肌肌结肌肌结肌肌结肌肌结阻力训练可以进行阻力训练.

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