在 Precor 自适应运动训练器上进行椭圆和踏步运动模式时的峰值肌肉激活、关节运动学和动力学。

Peak muscle activation, joint kinematics, and kinetics during elliptical and stepping movement pattern on a Precor Adaptive Motion Trainer.

机构信息

Department of Exercise and Sport Science, University of Wisconsin-La Crosse, 65601, USA.

出版信息

Res Q Exerc Sport. 2012 Jun;83(2):152-9. doi: 10.1080/02701367.2012.10599845.

DOI:10.1080/02701367.2012.10599845

Abstract

Kinematic, kinetic, and electromyography data were collected from the biceps femoris, rectus femoris (RF), gluteus maximus, and erector spinae (ES) during a step and elliptical exercise at a standardized workload with no hand use. Findings depicted 95% greater ankle plantar flexion (p = .01), 29% more knee extension (p = .003), 101% higher peak knee flexor moments (p < .001) 54% greater hip extensor moments (p < .001), 268% greater anterior joint reaction force (p = .009), 37% more RF activation (p < .001), and 200 % more ES activation (p <. 001) for the elliptical motion. Sixteen percent more hip flexion (p < .001), 42% higher knee extensor moments (p < .001), and 54% greater hip flexor moments (p = .041) occurred during the step motion. Biomechanical differences between motions should be considered when planning an exercise regimen.

摘要

在无手部使用的情况下，以标准化的工作量进行步行动作和椭圆运动时，从肱二头肌、股直肌（RF）、臀大肌和竖脊肌（ES）中收集运动学、动力学和肌电图数据。研究结果显示，足踝背屈的角度增加了 95%（p =.01），膝关节伸展角度增加了 29%（p =.003），峰值膝关节屈肌力矩增加了 101%（p <.001），髋关节伸肌力矩增加了 54%（p <.001），前关节反作用力增加了 268%（p =.009），RF 激活增加了 37%（p <.001），ES 激活增加了 200%（p <.001）。在步行动作中，髋关节屈曲增加了 16%（p <.001），膝关节伸肌力矩增加了 42%（p <.001），髋关节屈肌力矩增加了 54%（p =.041）。在制定运动方案时，应考虑运动之间的生物力学差异。