Eraslan Leyla, Yar Ozan, Huri Gazi, Duzgun Irem
Department of Physiotherapy and Rehabilitation, Ankara Medipol University, Ankara, Turkey.
Department of Radiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
J Sport Rehabil. 2025 Jan 11;34(5):536-543. doi: 10.1123/jsr.2024-0195. Print 2025 Jul 1.
Limited information exists regarding the immediate and short-term effects of scapula retraction exercises (SREs) on acromiohumeral distance (AHD) in subacromial pain syndrome (SPS). This study's 2 main objectives were to investigate (1) the immediate effect of the SRE on AHD at varying shoulder abduction angles in patients with SPS and healthy controls and (2) the effect of the 8-week SRE program on AHD in patients with SPS.
Cross-sectional and pre-post intervention designs were utilized on this study.
Twenty-one patients with SPS and age-matched healthy controls were included. First, AHD at 0°, 30°, 45°, 60°, and 90° of active shoulder abductions were recorded during (1) resting upper quadrant posture and (2) while participants were performing SREs. Patients then underwent an 8-week progressive SRE program. AHD measures, pain intensity (visual analog scale), and disability (Shoulder Pain and Disability Index) were recorded at baseline and 8 weeks. AHD were analyzed using mixed-model analyses of variance. Pain and disability were analyzed using paired samples t test.
The immediate effect of the SREs revealed a significant angle-by-exercise-by-group interaction for the AHD values (F3,155 = 3.956, P = .009, ηp2=.175). Pairwise comparisons yielded that the SRE increased AHD values in patients with SPS (P < .05), yet it did not affect healthy controls (P > .05). Besides, the SRE program revealed a significant angle-by-time interaction for the AHD values (F3,054 = 9.476, P < .001, ηp2=.195). AHD increased at all elevation angles, and pain and disability improved over time (P < .05).
SREs immediately affect AHD in patients with SPS but not in healthy populations. Moreover, SREs applied in progressive abduction angles improve pain, functionality, and AHD values in patients with SPS.
关于肩胛后缩练习（SREs）对肩峰下疼痛综合征（SPS）患者肩峰肱骨头距离（AHD）的即时和短期影响，现有信息有限。本研究的两个主要目的是调查：（1）SREs对SPS患者和健康对照者在不同肩关节外展角度下AHD的即时影响；（2）为期8周的SREs计划对SPS患者AHD的影响。
本研究采用横断面和干预前后设计。
纳入21例SPS患者和年龄匹配的健康对照者。首先，在（1）静息上象限姿势时以及（2）参与者进行SREs时，记录主动肩关节外展0°、30°、45°、60°和90°时的AHD。然后，患者接受为期8周的渐进性SREs计划。在基线和8周时记录AHD测量值、疼痛强度（视觉模拟量表）和功能障碍（肩痛和功能障碍指数）。使用混合模型方差分析对AHD进行分析。使用配对样本t检验分析疼痛和功能障碍。
SREs的即时影响显示，AHD值存在显著的角度×练习×组间交互作用（F3,155 = 3.956，P = 0.009，ηp2 = 0.175）。两两比较结果显示，SREs增加了SPS患者的AHD值（P < 0.05），但对健康对照者没有影响（P > 0.05）。此外，SREs计划显示AHD值存在显著的角度×时间交互作用（F3,054 = 9.476，P < 0.001，ηp2 = 0.195）。所有抬高角度下AHD均增加，且疼痛和功能障碍随时间改善（P < 0.05）。
SREs对SPS患者的AHD有即时影响，但对健康人群无此影响。此外，以渐进性外展角度进行的SREs可改善SPS患者的疼痛、功能和AHD值。
