高负荷和高低负荷联合阻力训练在绝对肌肉耐力任务期间对电肌图学行为的影响
Alex A Olmos1,2, Stephanie A Sontag3, Daniel J Lawson4
1Department of Molecular Biology and Chemistry, Christopher Newport University, Newport News, VA, 23606, USA. alex.olmos@cnu.edu.
European journal of applied physiology
|June 24, 2025
概括
结合高负荷和低负荷的阻力训练比单独的高负荷训练更能提高肌肉耐力和肌肉缩. 这表明,联合训练可能会在持续活动期间降低神经成本.
科学领域:
- 运动生理学 运动生理学
- 肌肉生理学 肌肉生理学
- 神经肌肉适应的过程
背景情况:
- 抵抗训练可以增强最大的力量和肌肉缩.
- 改善肌肉耐力和神经效率的最佳训练策略仍在研究中.
- 结合高负荷和低负荷训练可能与单独高负荷训练相比提供独特的好处.
研究的目的:
- 为了比较6周的高负荷和低负荷 (H+L) 联合训练与仅高负荷 (H) 阻力训练的效果.
- 为了评估最大强度,肌肉厚度 (MT) 和电动图 (EMG) -扭矩关系的变化.
- 评估在绝对肌肉耐力 (AME) 任务中的表现.
主要方法:
- 28名未经训练的男性接受了6周的H+L或H下肢抵抗训练.
- 评估了最大自愿收缩 (MVC) 和状肌肉对失败的作用.
- 用单个b-和a-术语分析了电肌图 (EMG) 活动和扭矩关系.
主要成果:
- 两组都显示最大强度的增加类似.
- 肌肉厚度 (MT) 在两组都增加,H+L组的收益明显更大.
- 只有H+L组在绝对肌肉耐力 (AME) 中表现出改善.
- 在H+L组的肌肉活动中,正常化EMG (N-EMG) 减少,这表明神经成本降低.
结论:
- 组合高负荷和低负荷训练比单独高负荷训练更有效地提高肌肉耐力和肌肉缩.
- H+L训练可能会导致更大的神经适应,减少持续扭矩产生所需的肌肉刺激.
- 这种训练模式有望提高力量和耐力,同时可能降低长时间体育活动的神经成本.
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