Original articleSubacromial impingement syndrome: The role of posture and muscle imbalance
Section snippets
Materials and methods
Ethical approval for this study was granted by the Riverside Research Ethics Committee. Subjects were provided with information booklets explaining the purpose of the study and signed informed consent documents before participation.
Results
For this investigation, 31 asymptomatic female subjects and 29 asymptomatic male subjects were recruited. There were 2 left hand-dominant and 58 right hand-dominant individuals. The symptomatic group consisted of 25 female subjects and 35 male subjects with SIS. In this group there were 8 left hand-dominant and 52 right hand-dominant individuals. The left shoulder was painful in 25 subjects and the right in 35. The mean duration of symptoms was 1.1 years (SD, 2.5 years) with a range of 2 weeks
Discussion
The key to the clinical examination of posture is commonly described as the assessment of FHP.24 If FHP is evident, it has been proposed that the clinician may assume that the thoracic kyphosis angle will have increased and the position of the scapula will have been altered, leading to a reduction in glenohumeral range and the potential for pathology.6, 26 The results of this investigation suggest that the null hypothesis cannot be rejected, as the postural patterns described in the literature
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Supported by the Hospital Saving Association Research Degree Award, the CSP Charitable Trust Award, and the MACP Churchill Livingstone Award for research in Manipulative Physiotherapy.