Acute effects of doorway stretch on the glenohumeral rotational range of motion and scapular position in high-school baseball players

© 2021 The Author(s).

Bibliographische Detailangaben
Veröffentlicht in:JSES international. - 2020. - 5(2021), 6 vom: 17. Nov., Seite 972-977
1. Verfasser: Higuchi, Takashi (VerfasserIn)
Weitere Verfasser: Nakao, Yuichi, Tanaka, Yasuaki, Sadakiyo, Masashi, Hamada, Koki, Yokoyama, Shigeki
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:JSES international
Schlagworte:Journal Article Baseball Doorway stretch GIRD Glenohumeral internal rotation Pectoralis minor Scapular position
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100 1 |a Higuchi, Takashi  |e verfasserin  |4 aut 
245 1 0 |a Acute effects of doorway stretch on the glenohumeral rotational range of motion and scapular position in high-school baseball players 
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520 |a BACKGROUND: Pectoralis minor tightness has been thought to affect the scapular position. Despite the wide implementation of doorway stretch in clinical practice owing to its apparent effectiveness in stretching the pectoralis minor, limited studies have investigated its influence on the glenohumeral rotational range of motion (ROM). This study aimed to examine the acute effects of doorway stretch on the glenohumeral rotational ROM and the correlation between the scapular position and ROM 
520 |a MATERIALS AND METHODS: In total, 34 male high-school baseball players participated in this study. Outcomes included the pectoralis minor muscle length, glenohumeral rotational ROM, and scapular position. The distance between the sternocostal joint of rib 4 and the coracoid process was measured as the pectoralis minor length. Internal and external rotation ROM with the shoulder abducted at 90° were measured. The scapular position was defined by the following two measurements: the distance between the surface and the posterolateral corner of the acromion as well as the scapular index. The participants performed doorway stretch by abducting and externally rotating the shoulder at 90° and flexing the elbow at 90°. The outcomes were compared before and after stretching. Furthermore, the correlation between these changes was investigated 
520 |a RESULTS: Pectoralis minor muscle length and glenohumeral internal rotation ROM was significantly higher after stretching than before, and the scapular position also significantly changed (P < .01 for both). A moderate correlation was found between the degree of change in the glenohumeral internal rotational ROM and scapular position (r = 0.44, P < .01) 
520 |a DISCUSSION: Our results indicated that doorway stretch significantly increased the pectoralis minor muscle length and glenohumeral internal rotation ROM and significantly altered the scapular position. Furthermore, a significant correlation between the degree of change in the scapular position and glenohumeral internal rotation ROM was observed. These results suggest that doorway stretch could be beneficial for improving the scapular position and glenohumeral internal rotation ROM, which are considered the cause of throwing injuries. Furthermore, the glenohumeral ROM may be affected by the scapular position 
650 4 |a Journal Article 
650 4 |a Baseball 
650 4 |a Doorway stretch 
650 4 |a GIRD 
650 4 |a Glenohumeral internal rotation 
650 4 |a Pectoralis minor 
650 4 |a Scapular position 
700 1 |a Nakao, Yuichi  |e verfasserin  |4 aut 
700 1 |a Tanaka, Yasuaki  |e verfasserin  |4 aut 
700 1 |a Sadakiyo, Masashi  |e verfasserin  |4 aut 
700 1 |a Hamada, Koki  |e verfasserin  |4 aut 
700 1 |a Yokoyama, Shigeki  |e verfasserin  |4 aut 
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773 1 8 |g volume:5  |g year:2021  |g number:6  |g day:17  |g month:11  |g pages:972-977 
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