自由重量与史密斯机器的前后地面反应力:这些差异是由负载和体积调节的吗?
Daniel Marcos-Frutos1, Sergio Miras-Moreno1, María Dolores Morenas-Aguilar1
1Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.
Journal of sports sciences
|December 10, 2025
概括
自由重量 (FW) 坐会产生比史密斯机器 (SM) 坐更大的后部冲动,特别是在推进阶段. 这表明FW可以优越提高垂直跳跃性能.
科学领域:
- 生物力学 生物力学
- 运动科学 运动科学 运动科学
- 强度和适应条件 强度和适应条件
背景情况:
- 背是培养下半身最大力量的基础炼.
- 关于运动限制,特别是自由重量 (FW) 与史密斯机器 (SM) 坐,如何影响地面反应力 (GRF) 的研究有限.
研究的目的:
- 为了研究FW和SM背之间的前后地面反应力 (GRF) 的差异.
- 为了确定负载和重复进展如何影响这些GRF差异.
主要方法:
- 35名参与者使用FW和SM进行了背,负载约为1重复最大的45%和70%.
- 在两次随机会议中,使用力板测量了地面反应力 (GRF).
主要成果:
- 与FW坐相比,SM坐的参与者在制动和推进阶段都产生了显著更大的后部冲动.
- 在FW和SM squats之间,GRF的水平角度有显著差异.
- 这些差异在更高的负载和整个套件中被放大,特别是在推进阶段.
结论:
- 对于旨在提高垂直跳跃表现的教练来说,FW可能比SM更有利.
- 独特的GRF模式表明,在FW和SM squats之间采用了不同的神经肌肉策略.
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