J Sport Rehabil. 2020 Oct 29;30(4):531-537. doi: 10.1123/jsr.2020-0170.
Recreational overhead athletes are exposed to high overload, which increases the risk of shoulder injuries. Reduction of the acromiohumeral distance (AHD) is often associated with rotator cuff-related shoulder pain (RCRSP) among the general population. However, the AHD of symptomatic shoulders of recreational athletes has not yet been compared with their asymptomatic shoulders.
To compare the AHD of a symptomatic to asymptomatic shoulder at rest (0°) and 60° abduction. To establish the relationship between AHD, pain, and functional limitations of recreational athletes with RCRSP.
Cross-sectional study.
University laboratory.
A total of 45 recreational overhead athletes with RCRSP were examined.
The AHD was measured by ultrasonography at 0° and 60° abduction (angles). Shoulder pain was assessed using a numeric pain scale, whereas functional limitations were assessed using the The Disabilities of the Arm, Shoulder, and Hand questionnaire. Differences in the between-shoulders condition (symptomatic and asymptomatic) were determined using 2-way analysis of variance for repeated measures. A Pearson correlation established the relationship between AHD, pain, and functional limitations.
No angles × shoulder condition interactions (P = .776) nor shoulder condition effects (P = .087) were detected, suggesting no significant differences (P > .05) between asymptomatic and symptomatic shoulders in the AHD at 0° or 60°. The AHD at 60° reduced significantly compared with 0° (3.05 [1.36] mm [2.77-3.33], angle effects: P < .001). The AHD at 0° and 60° was not correlated with pain or functional limitations (-.205 ≤ r ≤ .210, .167 ≤ P ≤ .585).
The AHD of recreational athletes is not decreased in symptomatic shoulders compared with asymptomatic shoulders. Reduction of the AHD in symptomatic shoulders is not associated with an increase in pain or functional limitations of recreational athletes with RCRSP.
娱乐性过顶运动员承受着高负荷，这增加了肩部受伤的风险。肩峰下肱骨头间距（AHD）的减小常与普通人群中的肩袖相关的肩部疼痛（RCRSP）有关。然而，娱乐性运动员的症状性肩部的 AHD 尚未与无症状肩部进行比较。
比较休息（0°）和 60°外展时症状性和无症状性肩部的 AHD。确定患有 RCRSP 的娱乐性运动员的 AHD、疼痛和功能限制之间的关系。
横断面研究。
大学实验室。
共检查了 45 名患有 RCRSP 的娱乐性过顶运动员。
通过超声在 0°和 60°外展（角度）时测量 AHD。使用数字疼痛量表评估肩部疼痛，使用肩部、手臂和手残疾问卷评估功能限制。使用重复测量的 2 因素方差分析确定双肩状态（症状性和无症状性）之间的差异。Pearson 相关性确定了 AHD、疼痛和功能限制之间的关系。
未检测到角度×肩状态交互作用（P =.776）或肩状态效应（P =.087），这表明在 0°或 60°时，无症状性和症状性肩部的 AHD 之间无显著差异（P >.05）。与 0°相比，60°时的 AHD 显著降低（3.05 [1.36]mm[2.77-3.33]，角度效应：P <.001）。0°和 60°的 AHD 与疼痛或功能限制无关（-.205 ≤ r ≤.210，.167 ≤ P ≤.585）。
与无症状肩部相比，娱乐性运动员的症状性肩部的 AHD 没有降低。在患有 RCRSP 的娱乐性运动员中，症状性肩部 AHD 的减少与疼痛或功能限制的增加无关。
