The comparison of the Subacromial Space according to the difference conditions
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Impingement syndrome is universal that result in compression of subacromial space. The aim of this study is to analyze and to compare the change of subacromial space using ultrasonography.
Thirty healthy male adults were recruited, and agreed to participate as subjects in the study after a prior investigation. Subacromial space were measured according to angle of the shoulder abduction setting to 0°, 30°, 60° and 90° with the load 0lb, 2lb and 4lb set to test for confirming interaction of difference condition and all measurements were used in two way repeated ANOVA to analyze difference variables.
The angle of shoulder abduction (0°=11.27mm, 30°=7.77mm, 60°=6.76mm, 90°=6.20mm) showed significantly differences value (p<.05) and the load (0lb=8.41mm, 2lb=7.93mm, 4lb=7.66mm) showed significant differences value (p<.05). The angle of shoulder abduction and load interaction were confirmed for things that influence in the subacromial space.
The interaction of loading and joint angle was thought to be helpful in injury prevention related to the rotator cuff injury or shoulder impingement syndrome in the future.
Subacromial space, ultrasonography, loading, muscle activity, range of motion.