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Scapular kinematics and shoulder elevation in a traditional push-up

机译：肩胛上的运动学和肩部高度在传统的俯卧撑

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摘要

Context: Proper scapulothoracic motion is critical for the health and function of the shoulder and represents a principal focus in the rehabilitation setting. Variants of the traditional push-up are used frequently to help restore proper scapular kinematics. To date, substantial research has focused on muscle activation levels of rotator cuff and scapular-stabilizing musculature, whereas a dearth of literature exists regarding scapular kinematics during push-up variants. Objective: To examine the effect of shoulder position on scapular kinematics across the range of motion (ROM) of a traditional push-up. Design: Cross-sectional study. Setting: University laboratory. Patients or Other Participants: Sixteen healthy participants without a history of upper extremity or spine injury requiring rehabilitation or surgery. Intervention(s): Participants performed a traditional pushup while kinematic measurements were acquired from multiple upper extremity segments. The 3 shoulder position conditions were (1) self-selected position, (2) shoulder adducted upon ascent (at side), and (3) shoulder elevated to approximately 908. Main Outcome Measure(s): Scapular posterior tilt, upward rotation, and external rotation were examined across elbowextension ROM and compared across conditions. Results: Posterior tilt was greater in the self-selected and at-side conditions than in the elevated condition and increased linearly with elbow extension. External rotation was greater in the self-selected and at-side conditions compared with that in the elevated condition. In the at-side condition, upward rotation began lower than in the other conditions at the start of the concentric phase but increased above the others soon after the elbow started to extend. Conclusions: Performing a traditional push-up with the shoulders elevated may place the scapula in a position of impingement. Clinicians should be cognizant of shoulder elevation when prescribing and monitoring exercise progression. The results of this study will provide further direction for clinicians in prescribing rehabilitation exercises for the upper extremity, especially closed chain exercises for shoulder conditions.
机译：背景：适当的脊椎胸壁运动对于肩部的健康和功能至关重要，代表康复环境中的主要重点。传统俯卧撑的变体经常用于帮助恢复适当的肩胛上的运动学。迄今为止，大量研究专注于旋转袖口和肩胛骨稳定的肌肉组织的肌肉激活水平，而在俯卧撑变体期间存在关于肩胛上的文献的缺乏。目的：探讨肩部位置对传统俯卧撑的肩胛上运动学的影响。设计：横截面研究。环境：大学实验室。患者或其他参与者：十六个健康的参与者，没有上肢历史或需要康复或手术的脊柱损伤。干预：参与者在从多个上肢段中获得了运动测量时进行了传统的俯卧撑。 3个肩部位置条件是（1）自选位置，（2）肩部加入上升（在侧面），（3）肩部升高至约908.主要结果测量：肩胛上倾斜，向上旋转，在elbowextension ROM上检查外部旋转，并在条件下进行比较。结果：在自选和侧侧条件下，后倾斜比在升高状态下更大，并且用肘部延伸线性地增加。与升高条件相比，外部旋转在自选和侧面条件中更大。在处于处的处方状态下，向上旋转开始于同心阶段开始时的其他条件下降，但在肘部开始延伸后，其他条件也很快增加。结论：与抬高的肩部进行传统的俯卧撑可以将肩胛骨放在冲击的位置。当处方和监测运动进展时，临床医生应认识到肩部海拔。本研究的结果将为临床医生提供进一步的方向，以规定上肢的康复练习，特别是肩部条件的封闭链练习。

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  • 来源
    《Journal of athletic training》 |2013年第6期|共10页
  • 作者

    SuprakD.N.; BohannonJ.; MoralesG.; StroscheinJ.; JuanJ.G.S.;

  • 作者单位

    Western Washington University 516 High Street MS 9067 Bellingham WA 98225 United States;

    Western Washington University 516 High Street MS 9067 Bellingham WA 98225 United States;

    Western Washington University 516 High Street MS 9067 Bellingham WA 98225 United States;

    Western Washington University 516 High Street MS 9067 Bellingham WA 98225 United States;

    Western Washington University 516 High Street MS 9067 Bellingham WA 98225 United States;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 运动医学;
  • 关键词

    Closed kinetic chain exercises; Impingement; Rehabilitation;

    机译：封闭的动力链练习;冲击;康复;

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