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Posterior Shoulder Muscle Stiffness and Rotation in Patients With Stiff Shoulder

2014-08-27 03:17:38 | BioPortfolio

Summary

The purposes of this study are: (1) to investigate whether there will be muscle stiffness and muscular activity difference between subjects with stiff shoulders and controls; and (2) to determine the correlations between posterior shoulder muscle stiffness, muscular activities, and rotation range of motion. The investigators hypothesize that there are muscle stiffness and muscular activity difference between subjects with stiff shoulders and controls. The investigators also hypothesize that posterior shoulder muscle stiffness, muscular activities, and rotation range of motion are significantly correlated.

Description

Objective: The purpose of this study is to investigate whether there will be muscle stiffness and muscular activity difference between subjects with stiff shoulders and controls and to determine the correlations between posterior shoulder muscle stiffness, muscular activities, and rotation range of motion.

Design: Prospective, cross-sectional study.

Subjects: Thirty subjects with stiff shoulder (SS) and 15 healthy subjects will be recruited.

Methods: Range of motion of rotation, electromyography activity, and stiffness in 4 muscles (posterior deltoid, infraspinatus, teres minor and teres major) of the affected shoulder and control shoulders will be measured using a goniometer, electromyography, and a myotonometer, respectively.

Data analysis: Data will be analyzed using SPSS 12 software (SPSS Inc., Chicago, IL). Independent t tests will be used to compare the posterior muscle stiffness and muscular activity between subjects with SS and controls. Pearson correlation coefficients will be calculated to identify which muscle stiffness and muscular activity that are significantly correlated to rotation. For explanatory rotation, stepwise regression models will be calculated using significant muscle stiffness and muscular activity as predicators.

Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional

Conditions

Stiff Shoulder

Location

National Taiwan University Hospital
Taipei
Taiwan

Status

Not yet recruiting

Source

National Taiwan University Hospital

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:17:38-0400

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