Rosa Dayana Patricia, Borstad John David, Ramirez Paula Camila, Camargo Paula Rezende
Department of Physical Therapist, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
Physical Therapy Program, Oregon State University-Cascades, Bend, OR, USA.
J Hand Ther. 2025 Jan-Mar;38(1):61-67. doi: 10.1016/j.jht.2024.10.003. Epub 2025 Jan 3.
Pectoralis minor (PM) shortening and posterior shoulder tightness (PST) are considered potential soft tissue alterations associated with rotator cuff related shoulder pain (RCRSP). Yet, their precise contribution to pain and disability remains unclear.
To explore the association between both PM length and PST and self-reported shoulder pain and disability in individuals with and without RCRSP. Demographic characteristics and shoulder active range of motion (AROM) were also considered for their potential contributions to RCRSP.
This was a cross-sectional study.
Using Shoulder Pain and Disability Index (SPADI), 144 individuals were grouped by pain and disability severity: SPADI total score ≤20 and SPADI total score >20. PM length was measured using a tape measure. PST, glenohumeral joint flexion, internal (IR) and external (ER) rotation AROM were quantified using an inclinometer. Demographic and AROM measurements were compared between groups and regression analyses identified SPADI predictors.
Age, PST, glenohumeral flexion, and ER AROM were associated with SPADI total score (p < 0.05). Higher age (odds ratio (OR [95%CI]): 1.07 [1.02-1.12]) and increased PST (OR: 1.16 [1.04-1.29]) were associated with higher self-reported shoulder pain and disability scores (SPADI score >20). In contrast, increased flexion (OR: 0.93 [0.88-0.97]) and ER AROM (OR: 0.96 [0.93-0.99]) served as protective factors against increased levels of self-reported shoulder pain and disability. No other variables were associated with SPADI (p > 0.05).
PST is associated with increased levels of self-reported shoulder pain and disability, as are age, while PM length and IR AROM were not significantly associated variables. Glenohumeral flexion and ER AROM prevented increased levels of self-reported shoulder pain and disability.
胸小肌（PM）缩短和肩后部紧张（PST）被认为是与肩袖相关肩部疼痛（RCRSP）相关的潜在软组织改变。然而，它们对疼痛和功能障碍的确切作用仍不清楚。
探讨有和没有RCRSP的个体中PM长度和PST与自我报告的肩部疼痛和功能障碍之间的关联。还考虑了人口统计学特征和肩部主动活动范围（AROM）对RCRSP的潜在影响。
这是一项横断面研究。
使用肩部疼痛和功能障碍指数（SPADI），根据疼痛和功能障碍严重程度将144名个体分组：SPADI总分≤20分和SPADI总分>20分。使用卷尺测量PM长度。使用倾角仪量化PST、盂肱关节屈曲、内旋（IR）和外旋（ER）活动范围。比较两组之间的人口统计学和AROM测量结果，并进行回归分析以确定SPADI的预测因素。
年龄、PST、盂肱关节屈曲和ER活动范围与SPADI总分相关（p<0.05）。年龄较大（优势比（OR[95%CI]）：1.07[1.02-1.12]）和PST增加（OR：1.16[1.04-1.29]）与自我报告的肩部疼痛和功能障碍评分较高（SPADI评分>20）相关。相反，屈曲增加（OR：0.93[0.88-0.97]）和ER活动范围（OR：0.96[0.93-0.99]）是自我报告的肩部疼痛和功能障碍水平增加的保护因素。没有其他变量与SPADI相关（p>0.05）。
PST与自我报告的肩部疼痛和功能障碍水平增加相关，年龄也是如此，而PM长度和IR活动范围不是显著相关变量。盂肱关节屈曲和ER活动范围可防止自我报告的肩部疼痛和功能障碍水平增加。
