每天至少进行6次古怪收缩的最低强度,以增加肌肉的强度和大小
Riku Yoshida1, Yuta Murakami2, Kazuki Kasahara2
1Department of Rehabilitation Medicine, Maniwa Orthopedics Clinic, Niigata, Japan.
Scandinavian journal of medicine & science in sports
|June 20, 2024
概括
用2/3强度的最大自发收缩 (MVC) 进行异常训练,有效地增加了肘部屈曲器的强度和肌肉厚度. 降低强度 (1/3 MVC) 没有产生显著的肌肉适应,这表明对缩的最佳训练负载.
科学领域:
- 运动生理学 运动生理学
- 肌肉生理学 肌肉生理学
- 运动科学 运动科学 运动科学
背景情况:
- 之前的研究表明,超过4周的最大偏心收缩显著提高了肘部曲器的强度和肌肉厚度.
- 目前的研究调查了减少异常训练强度是否可以实现类似的肌肉适应.
研究的目的:
- 为了测试假设,肌肉力量和厚度增加与减少异常训练强度 (2/3或1/3的峰值MVC-ECC扭矩).
主要方法:
- 36名健康的年轻人被分为三组:三分之二的MVC,三分之一的MVC和对照组.
- 训练包括使用子进行6次奇特的收缩,每周5天,持续4周.
- 在训练前和训练后测量了最大自愿的等比 (MVC-ISO),集中 (MVC-CON) 和偏心 (MVC-ECC) 扭矩,以及肌肉厚度 (MT).
主要成果:
- 2/3 MVC 组显示MVC-ISO,MVC-CON,MVC-ECC扭矩和MT (p <0.05) 的显著增加.
- 在对照组或1/3 MVC组中没有观察到任何显著变化.
- 2/3 MVC 组的适应与使用最大偏心收缩的先前研究中的适应相似.
结论:
- 在2/3的峰值MVC-ECC扭矩时,异常收缩是诱导肌肉强度和厚度适应的有效方法.
- 这种训练强度和最大的异动力学异常收缩一样有效.
- 低强度 (1/3 MVC) 奇特训练似乎不足以显著增加肌肉缩或力量.
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