Investigation of the limiting factors of shoulder joint complex motion in college baseball players : motion analysis of the humeral head and rotator cuff using ultrasound

© 2024 The Author(s).

Détails bibliographiques
Publié dans:JSES international. - 2020. - 8(2024), 3 vom: 15. Mai, Seite 570-576
Auteur principal: Miyazaki, Takasuke (Auteur)
Autres auteurs: Uekama, Kohei, Machida, Toru, Maesako, Shingo, Taniguchi, Noboru
Format: Article en ligne
Langue:English
Publié: 2024
Accès à la collection:JSES international
Sujets:Journal Article Glenohumeral joint Infraspinatus Motion analysis Particle image velocimetry Shoulder Ultrasonography
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245 1 0 |a Investigation of the limiting factors of shoulder joint complex motion in college baseball players  |b motion analysis of the humeral head and rotator cuff using ultrasound 
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520 |a Background: The relationship between lower mobility, as measured by the elbow forward translation motion (T-motion) test, a new indicator of shoulder joint complex movement that measures elbow position when both dorsal hands are placed on the iliac crest while in a sitting position, and the parameters calculated by ultrasonography is unknown. The purpose of this study was to investigate the limiting factors of T-motion through motion analysis of the humeral head and rotator cuff muscles using ultrasonography in college baseball players 
520 |a Methods: Thirteen college baseball players participated in this cross-sectional study. The shortest distance from the posterior edge of the glenoid to the humeral head was measured in the static and T-motion positions, and the difference was calculated as the humeral head translation. The velocity of the infraspinatus was calculated during shoulder internal/external rotation using the particle image velocimetry method. These parameters were compared between the throwing and nonthrowing sides to examine the limiting factors of T-motion 
520 |a Results: This study indicated moderate-to-good reliability for the parameters calculated by ultrasonography. The mean anterior translation distance was significantly greater on the throwing side than on the nonthrowing side (r = 0.56, P = .015). The mean velocity of infraspinatus during internal rotation was significantly lower on the throwing side than on the nonthrowing side (r = 0.51, P = .028) 
520 |a Conclusion: Increased anterior translation of the humeral head and decreased the velocity of infraspinatus are likely correlated with reduced T-motion mobility in college baseball players. These methods showed potential for physical therapy assessment and intervention to prevent shoulder dysfunction 
650 4 |a Journal Article 
650 4 |a Glenohumeral joint 
650 4 |a Infraspinatus 
650 4 |a Motion analysis 
650 4 |a Particle image velocimetry 
650 4 |a Shoulder 
650 4 |a Ultrasonography 
700 1 |a Uekama, Kohei  |e verfasserin  |4 aut 
700 1 |a Machida, Toru  |e verfasserin  |4 aut 
700 1 |a Maesako, Shingo  |e verfasserin  |4 aut 
700 1 |a Taniguchi, Noboru  |e verfasserin  |4 aut 
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