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KMID : 1151220230290020069
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Journal of Korean Academy of Orthopedic Manual Therapy
2023 Volume.29 No. 2 p.69 ~ p.75
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The Effect of Mobilization Combined with Shoulder Active Contraction of Depth between the Coracoid Process and Humeral Head
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Kim Sun-Min
Jang Sang-Hun
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Abstract
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Purpose: This study examined the distance between the coracoid process and the humeral head using an ultrasonography device when shoulder active contraction were applied according to the guided direction in the end range of shoulder mobilization. This study aims to provide essential data on treating shoulder disease patients.
Methods: The subjects of this study were 20 adults with healthy shoulder joints. ultrasonography (US) equipment was used to examine shoulder joint mobilization under two conditions: (1) anteroposterior (AP) joint mobilization and (2) superoinferior (SI) joint mobilization. Shoulder active contraction was assessed in the end range. The distance between the coracoid process and the humeral head was measured. A linear probe was used for US; the frequency was set to 7.5㎒, and the US image display method was set to B-mode. The US measurement values were measured in (1) the starting position, (2) the end range position, and (3) the end range position of the shoulder active contraction, and the moving distance was drawn in a straight line through the US image. The distance was determined as the measurement value, and the average values were compared.
Reults: The results were as follows: (1) the measured AP Joint mobilization increased by an average of .52㎝ from the end range of the joint mobilization with shoulder active contraction; (2) the measured SI Joint mobilization increased by an average of .49㎝ from the end range of the joint.
Conclusion: When shoulder mobilization is applied, the distance between the coracoid process and the humeral head increases when muscle contraction occurs through shoulder active contraction in the end range, according to the therapist's guidance. Therefore, shoulder mobilization combined with shoulder active contraction is an effective treatment method for patients with shoulder injuries.
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KEYWORD
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Shoulder Active Contraction, Shoulder Mobilization, Ultrasonography
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