运动学,动力学和肌肉活动模式在背部坐时与弹性抵抗的不同贡献
Lin Shi1,2,3, Mark Lyons4, Michael Duncan5
1Center for Strength and Conditioning Training, Chengdu Sport University, Chengdu, SC, China.
概括
将弹性带添加到背部坐会增加速度,功率和肌肉活动. 较大的弹性阻力可以在运动的偏心和集中阶段提高神经肌肉性能.
科学领域:
- 运动科学 运动科学 运动科学
- 生物力学 生物力学
- 运动生理学 运动生理学
背景情况:
- 弹性带通常用于抵抗训练,以增强背.
- 以前的研究表明弹性带的好处,但最佳的抵抗水平及其对神经肌肉性能的影响还不清楚.
研究的目的:
- 为了研究不同弹性带阻力对力量,速度,功率和肌肉活动在背部坐期间的影响.
- 为了比较神经肌肉反应跨不同的弹性抵抗贡献在背练习.
主要方法:
- 13名篮球运动员以1重复最大的85%完成了背.
- 测试了四个条件:仅自由重量,弹性带提供20%,30%和40%的总负载.
- 在上部,中部和底部部分分析了异心和同心相.
主要成果:
- 在异常阶段,平均速度随着弹性阻力更高而逐渐增加.
- 大中和大腿直肠的肌肉活动显著增加,弹性阻力最高.
- 平均功率和力量发展速度在同心阶段随着弹性阻力增加而显著改善.
- 巨大的横向肌肉和巨大的中部肌肉活动显示了显著的改善,具有最高的弹性抵抗.
结论:
- 在背时增加弹性阻力可以提高速度,功率和力量发展速度.
- 特定肌肉激活,特别是在巨大的肌肉中,随着更高的弹性抵抗,显著改善.
- 弹性带提供了一种可行的方法来增强背训练中的神经肌肉适应.
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