Abstract：
BACKGROUND: Scapular dyskinesis is prevalent among asymptomatic athletes, particularly those involved in overhead activities, and can significantly impact their neuromuscular control. These changes may impair upper extremity function and strength, elevating the risk of injury. Therefore, it is imperative to investigate how scapular dyskinesis affects shoulder proprioception, upper extremity dynamic stability, and hand grip strength in overhead athletes. This study compared these parameters between overhead athletes with and without scapular dyskinesis.
METHODS: The study included twenty asymptomatic professional overhead athletes with scapular dyskinesis and twenty without scapular dyskinesis, identified using the lateral scapular slide test. In this cross-sectional study, shoulder active joint position sense, serving as shoulder proprioception, was measured using an isokinetic dynamometer. Upper extremity dynamic stability and hand grip strength were evaluated using an upper quarter modified star excursion balance test (UQ-mSEBT) and a handheld dynamometer.
RESULTS: The study found that the shoulder active joint position sense was significantly lower in the scapular dyskinesis group compared to the group without scapular dyskinesis (PExternal Rotation = 0.003, PInternal Rotation < 0.001, and PForward Flexion = 0.002). However, the two groups had no significant differences in UQ-mSEBT and hand grip strength scores.
CONCLUSIONS: The results showed that scapular dyskinesis could affect the sense of shoulder active joint position among asymptomatic overhead athletes. However, it did not affect their upper extremity dynamic stability and hand grip strength.
METHODS: The study included twenty asymptomatic professional overhead athletes with scapular dyskinesis and twenty without scapular dyskinesis, identified using the lateral scapular slide test. In this cross-sectional study, shoulder active joint position sense, serving as shoulder proprioception, was measured using an isokinetic dynamometer. Upper extremity dynamic stability and hand grip strength were evaluated using an upper quarter modified star excursion balance test (UQ-mSEBT) and a handheld dynamometer.
RESULTS: The study found that the shoulder active joint position sense was significantly lower in the scapular dyskinesis group compared to the group without scapular dyskinesis (PExternal Rotation = 0.003, PInternal Rotation < 0.001, and PForward Flexion = 0.002). However, the two groups had no significant differences in UQ-mSEBT and hand grip strength scores.
CONCLUSIONS: The results showed that scapular dyskinesis could affect the sense of shoulder active joint position among asymptomatic overhead athletes. However, it did not affect their upper extremity dynamic stability and hand grip strength.
摘要：
背景：无症状的运动员普遍存在肩胛骨发育不良，特别是那些参与开销活动的人，并且会显著影响他们的神经肌肉控制。这些变化可能会损害上肢功能和力量，增加受伤的风险。因此,必须研究肩胛骨皮肤发育不良如何影响肩部本体感觉，上肢动态稳定性,和头顶运动员的握力。这项研究比较了有和没有肩胛骨发育不良的高架运动员的这些参数。
方法：该研究包括20名无症状的专业头顶运动员肩胛骨发育不良和20名无肩胛骨发育不良，使用肩胛骨外侧滑动试验确定。在这项横断面研究中，肩部活动关节位置感，作为肩膀本体感受，使用等速测功机测量。使用上部四分之一改进的星形偏移平衡测试（UQ-mSEBT）和手持式测力计评估上肢动态稳定性和手握力。
结果：研究发现，与无肩胛骨发育不全组相比，肩胛骨发育不全组的肩关节活动位置感明显较低（外旋转=0.003，内旋转<0.001，前屈=0.002）。然而,两组在UQ-mSEBT和握力评分方面无显著差异.
结论：结果表明，肩胛骨脱位会影响无症状头顶运动员的肩关节活动位置感。然而,不影响其上肢动态稳定性和手握力。
方法：该研究包括20名无症状的专业头顶运动员肩胛骨发育不良和20名无肩胛骨发育不良，使用肩胛骨外侧滑动试验确定。在这项横断面研究中，肩部活动关节位置感，作为肩膀本体感受，使用等速测功机测量。使用上部四分之一改进的星形偏移平衡测试（UQ-mSEBT）和手持式测力计评估上肢动态稳定性和手握力。
结果：研究发现，与无肩胛骨发育不全组相比，肩胛骨发育不全组的肩关节活动位置感明显较低（外旋转=0.003，内旋转<0.001，前屈=0.002）。然而,两组在UQ-mSEBT和握力评分方面无显著差异.
结论：结果表明，肩胛骨脱位会影响无症状头顶运动员的肩关节活动位置感。然而,不影响其上肢动态稳定性和手握力。
