敏肌肉激发响应跨越各种长板压力范围的运动范围
Josef Fischer1, Christian Burger2, Josefina Andrea Manieu Seguel2
1Institute of Human Movement Science, Sport and Health, Graz University, Graz, Austria. josef.fischer@uni-graz.at.
Scientific reports
|April 24, 2025
概括
长椅压力运动范围显著改变肌肉激活. 部分范围,特别是上半部分,与全范围相比,增加了大胸部和三腕的兴奋.
科学领域:
- 生物力学 生物力学
- 运动生理学 运动生理学
- 运动科学 运动科学 运动科学
背景情况:
- 有限的研究存在于阻力练习期间在不同的运动范围 (ROM) 上部身体肌肉激发.
- 在特定的长板压力ROM中确定肌肉激发的参考值对于炼编程至关重要.
研究的目的:
- 调查和量化肌肉激发模式的胸部大,三腕,和前骨在不同的长椅压力ROMs期间.
- 为了比较全ROM,上半ROM和下半ROM机床压力之间的肌肉激活水平.
主要方法:
- 表面电肌图 (sEMG) 用于测量19名男性参与者的肌肉刺激,他们进行了10次重复的最大 (10RM) 长椅压力.
- 在三个不同的ROM中记录了大胸部 (PM),三腕 (TB) 和前腹骨 (AD) 的测量:全,上半部分和下半部分.
- 分析的重点是平均和峰值EMG振幅,以确定肌肉激活的差异.
主要成果:
- 在不同ROM之间,在所有测量肌肉 (p < 0.001-0.002) 中发现了平均肌肉刺激的显著差异.
- 上半部的ROM显示了三腕的最高平均激发.
- 两个部分ROM (上半部分和下半部分) 与完整的ROM相比,诱导了更大的胸部主要和前腹骨刺激.
- 肌肉激发的峰值在PM硬肋骨区域和上半部ROM期间特定的三脚臂头部显着更高.
结论:
- 长椅压力ROM的变化显著影响大胸部,三腕和前腹肌肌的肌肉激发模式.
- 部分ROM,特别是上半部分的变化,在准特定的肌肉激活方面可能具有明显的优势.
- 这些发现为优化抵抗训练计划提供了宝贵的见解,以增强肌肉缩和力量发展.
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