Department of Physiotherapy and Occupational Therapy, Aarhus University Hospital, Aarhus, Denmark.
Scand J Med Sci Sports. 2012 Dec;22(6):e140-6. doi: 10.1111/j.1600-0838.2012.01525.x. Epub 2012 Sep 12.
Symptomatic external snapping hip can be a long-standing condition affecting physical function in younger people between 15-40 years. Gluteal weakness has been suggested to be associated with the condition. The aim of this study was to investigate whether eccentric hip abduction strength is decreased in patients with external snapping hip compared with healthy matched controls, and to examine isometric hip abduction, adduction, extension, flexion, internal rotation, and external rotation in patients with external snapping hip and matched controls. Thirteen patients with external snapping hip were compared with 13 healthy matched controls in a cross-sectional study design. The mean age of the patients was 25.5 ± 3.4 years and the mean age of the controls was 25.6 ± 2.6 years. Eccentric and isometric strength were assessed with a handheld dynamometer, using reliable test procedures. Eccentric hip abduction strength was 16% lower in patients with external snapping hip compared with healthy matched controls (1.50 ± 0.47 Nm/kg versus 1.82 ± 0.48 Nm/kg, P = 0.01). No other strength differences were measured between patients and controls (P > 0.05). Eccentric hip abductor weakness was present in patients with symptomatic external snapping hip compared with healthy matched controls.
症状性弹响髋可长期影响 15-40 岁的年轻人的身体功能。臀肌力量弱与该病有关。本研究旨在调查与健康匹配对照组相比，患有外弹响髋的患者在进行离心性髋关节外展力量时是否会减弱，并检查外弹响髋患者和匹配对照组的等长髋关节外展、内收、伸展、屈曲、内旋和外旋。在一项横断面研究设计中，将 13 名患有外弹响髋的患者与 13 名健康匹配的对照组进行了比较。患者的平均年龄为 25.5 ± 3.4 岁，对照组的平均年龄为 25.6 ± 2.6 岁。使用可靠的测试程序，通过手持测力计评估离心和等长强度。与健康匹配的对照组相比，患有外弹响髋的患者的离心性髋关节外展力量低 16%（1.50 ± 0.47 Nm/kg 比 1.82 ± 0.48 Nm/kg，P = 0.01）。患者和对照组之间没有测量到其他力量差异（P > 0.05）。与健康匹配的对照组相比，患有症状性外弹响髋的患者存在离心性髋外展肌无力。
