Acromio-Humeral Distance Is Associated with Shoulder External Strength in National Elite Badminton Players—A Preliminary Study
Purpose: To examine acromio-humeral distance (AHD) and shoulder isometric strength for external rotation (ER) and internal rotation (IR) in national elite badminton players. Methods: Seven elite badminton players with asymptomatic shoulders aged 24 ± 4 (mean ± SD) from the Danish national badminton...
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MDPI AG
2021-03-01
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| Series: | Sports |
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| Online Access: | https://www.mdpi.com/2075-4663/9/4/48 |
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| author | Simon Vadstrup Schmidt Jannik Andersen Engelhardt Ann Cools Stig Peter Magnusson Christian Couppé |
| author_facet | Simon Vadstrup Schmidt Jannik Andersen Engelhardt Ann Cools Stig Peter Magnusson Christian Couppé |
| author_sort | Simon Vadstrup Schmidt |
| collection | DOAJ |
| description | Purpose: To examine acromio-humeral distance (AHD) and shoulder isometric strength for external rotation (ER) and internal rotation (IR) in national elite badminton players. Methods: Seven elite badminton players with asymptomatic shoulders aged 24 ± 4 (mean ± SD) from the Danish national badminton team were investigated. Shoulder AHD, isometric strength in ER and IR were bilaterally assessed with ultrasonography and a hand-held dynamometer (HHD). Results: AHD was greater on the dominant vs. the nondominant side (<i>p</i> = 0.018). Moreover, IR strength was greater on the dominant side vs. the nondominant side (<i>p</i> = 0.041). Furthermore, AHD and ER strength were highly correlated on the dominant side (<i>p</i> = 0.007, <i>r</i> = 0.900). A correlation was also shown between AHD and the ER/IR strength ratio on the dominant side (<i>p</i> = 0.033, <i>r</i> = 0.793). Conclusion: This preliminary study demonstrates that shoulder ER strength is strongly associated with AHD size, largely reflecting supraspinatus tendon-muscle hypertrophy as a result of sport-specific adaptation in national elite badminton players with asymptomatic shoulders. These novel data also suggest that habitual loading of the shoulder improves the supraspinatus tendon size, which may lower the mechanical stress and potentially reduce the risk of injury. This warrants strengthening the shoulder external rotators as a potential strategy to reduce the risk of future shoulder injury. |
| first_indexed | 2024-03-10T12:45:30Z |
| format | Article |
| id | doaj.art-5c43a4a6c3b24babb898b600ef65037a |
| institution | Directory Open Access Journal |
| issn | 2075-4663 |
| language | English |
| last_indexed | 2024-03-10T12:45:30Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sports |
| spelling | doaj.art-5c43a4a6c3b24babb898b600ef65037a2023-11-21T13:30:34ZengMDPI AGSports2075-46632021-03-01944810.3390/sports9040048Acromio-Humeral Distance Is Associated with Shoulder External Strength in National Elite Badminton Players—A Preliminary StudySimon Vadstrup Schmidt0Jannik Andersen Engelhardt1Ann Cools2Stig Peter Magnusson3Christian Couppé4Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M, Copenhagen University Hospital—Bispebjerg and Frederiksberg, 2400 Copehagen, DenmarkInstitute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M, Copenhagen University Hospital—Bispebjerg and Frederiksberg, 2400 Copehagen, DenmarkInstitute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M, Copenhagen University Hospital—Bispebjerg and Frederiksberg, 2400 Copehagen, DenmarkInstitute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M, Copenhagen University Hospital—Bispebjerg and Frederiksberg, 2400 Copehagen, DenmarkInstitute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery M, Copenhagen University Hospital—Bispebjerg and Frederiksberg, 2400 Copehagen, DenmarkPurpose: To examine acromio-humeral distance (AHD) and shoulder isometric strength for external rotation (ER) and internal rotation (IR) in national elite badminton players. Methods: Seven elite badminton players with asymptomatic shoulders aged 24 ± 4 (mean ± SD) from the Danish national badminton team were investigated. Shoulder AHD, isometric strength in ER and IR were bilaterally assessed with ultrasonography and a hand-held dynamometer (HHD). Results: AHD was greater on the dominant vs. the nondominant side (<i>p</i> = 0.018). Moreover, IR strength was greater on the dominant side vs. the nondominant side (<i>p</i> = 0.041). Furthermore, AHD and ER strength were highly correlated on the dominant side (<i>p</i> = 0.007, <i>r</i> = 0.900). A correlation was also shown between AHD and the ER/IR strength ratio on the dominant side (<i>p</i> = 0.033, <i>r</i> = 0.793). Conclusion: This preliminary study demonstrates that shoulder ER strength is strongly associated with AHD size, largely reflecting supraspinatus tendon-muscle hypertrophy as a result of sport-specific adaptation in national elite badminton players with asymptomatic shoulders. These novel data also suggest that habitual loading of the shoulder improves the supraspinatus tendon size, which may lower the mechanical stress and potentially reduce the risk of injury. This warrants strengthening the shoulder external rotators as a potential strategy to reduce the risk of future shoulder injury.https://www.mdpi.com/2075-4663/9/4/48overhead athletesport-specific adaptationsshoulder rotational strengthultrasoundsupraspinatus tendon hypertrophy |
| spellingShingle | Simon Vadstrup Schmidt Jannik Andersen Engelhardt Ann Cools Stig Peter Magnusson Christian Couppé Acromio-Humeral Distance Is Associated with Shoulder External Strength in National Elite Badminton Players—A Preliminary Study Sports overhead athlete sport-specific adaptations shoulder rotational strength ultrasound supraspinatus tendon hypertrophy |
| title | Acromio-Humeral Distance Is Associated with Shoulder External Strength in National Elite Badminton Players—A Preliminary Study |
| title_full | Acromio-Humeral Distance Is Associated with Shoulder External Strength in National Elite Badminton Players—A Preliminary Study |
| title_fullStr | Acromio-Humeral Distance Is Associated with Shoulder External Strength in National Elite Badminton Players—A Preliminary Study |
| title_full_unstemmed | Acromio-Humeral Distance Is Associated with Shoulder External Strength in National Elite Badminton Players—A Preliminary Study |
| title_short | Acromio-Humeral Distance Is Associated with Shoulder External Strength in National Elite Badminton Players—A Preliminary Study |
| title_sort | acromio humeral distance is associated with shoulder external strength in national elite badminton players a preliminary study |
| topic | overhead athlete sport-specific adaptations shoulder rotational strength ultrasound supraspinatus tendon hypertrophy |
| url | https://www.mdpi.com/2075-4663/9/4/48 |
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