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首页> 外文期刊>Journal of physical therapy science. >The Effect of Hand Position Changes on Electromyographic Activity of Shoulder Stabilizers during Push-up Plus Exercise on Stable and Unstable Surfaces
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The Effect of Hand Position Changes on Electromyographic Activity of Shoulder Stabilizers during Push-up Plus Exercise on Stable and Unstable Surfaces

机译：稳定和不稳定表面上俯卧撑加运动过程中手部位置变化对肩部稳定器肌电活动的影响

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[Purpose] The purpose of this study was to determine the effect of hand position changes on electromyographic activity of shoulder stabilizers during push-up plus exercise (PUPE) performed on both stable and unstable surfaces. [Subjects] This study was performed on a cohort of 20 normal adults divided into an unstable surface group (USG) (n=10) and a stable surface group (SSG) (n=10). [Methods] A sling device was used to provide an unstable surface, and a push-up bar was used to provide a stable surface. PUPEs were performed with hands in various positions: the neutral position (NP), the internal rotation position (IRP), or the external rotation position (ERP). Electromyography was used to determine and analyze the electromyographic activity of the upper trapezius muscle (UT), the lower trapezius muscle (LT), the serratus anterior muscle (SA), and the pectoralis major muscle (PM). [Results] Comparison of the results within the USG and SSG showed significant differences depending on the hand position used during the exercise. Comparison between the USG and SSG showed that the ERP hand posture resulted in significant differences in electromyographic activity of the SA in the USG. [Conclusion] The electromyographic activity of the SA indicated that performing PUPEs using the ERP on an unstable surface provided more effective intervention for shoulder stabilization than ERP on a stable surface.
机译：[目的]本研究的目的是确定在稳定和不稳定表面上进行俯卧撑加运动（PUPE）期间手部位置变化对肩稳定器肌电活动的影响。 [对象]这项研究是针对20名正常成年人进行的，他们分为不稳定表面组（USG）（n = 10）和稳定表面组（SSG）（n = 10）。 [方法]使用吊索装置提供不稳定的表面，并使用上推杆提供稳定的表面。用手在不同位置执行PUPE：中立位置（NP），内部旋转位置（IRP）或外部旋转位置（ERP）。肌电图仪用于确定和分析上斜方肌（UT），下斜方肌（LT），锯齿前肌（SA）和胸大肌（PM）的肌电活动。 [结果]在USG和SSG内进行的结果比较表明，根据锻炼过程中所使用的手部位置，存在显着差异。 USG和SSG之间的比较表明，ERP的姿势导致USG中SA的肌电活动显着不同。 [结论] SA的肌电活动表明，在不稳定的表面上使用ERP进行PUPEs提供了比稳定表面上的ERP更有效的肩膀稳定干预措施。

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