The influence of shoulder abduction and external rotation on throwing arm kinetics in professional baseball pitchers.
Motion capture
ball velocity
distraction force
shoulder injury
Journal
Shoulder & elbow
ISSN: 1758-5732
Titre abrégé: Shoulder Elbow
Pays: United States
ID NLM: 101506589
Informations de publication
Date de publication:
Jul 2022
Jul 2022
Historique:
received:
23
02
2021
accepted:
26
03
2021
entrez:
18
7
2022
pubmed:
19
7
2022
medline:
19
7
2022
Statut:
ppublish
Résumé
The relationships between shoulder abduction and external rotation with peak kinetic values at the shoulder and elbow in professional baseball pitchers are not well established. Professional pitchers ( Shoulder abduction remained relatively consistent throughout the pitch (foot contact-ball release: 85.5 ± 11.1-90.7 ± 8.4°); shoulder external rotation increased dramatically (foot contact-ball release: 30.8 ± 24.6-165.2 ± 9.7°). For every 10° increase in maximum shoulder rotation, shoulder superior force increased by 2.3% body weight ( Increased shoulder abduction at ball release and increased maximum shoulder external rotation were associated with greater superior and distraction forces in the shoulder. Pitchers can consider decreasing shoulder abduction at later stages of the pitch to around 80° in order to minimize shoulder superior force, with no impact on ball velocity.
Sections du résumé
Background
UNASSIGNED
The relationships between shoulder abduction and external rotation with peak kinetic values at the shoulder and elbow in professional baseball pitchers are not well established.
Methods
UNASSIGNED
Professional pitchers (
Results
UNASSIGNED
Shoulder abduction remained relatively consistent throughout the pitch (foot contact-ball release: 85.5 ± 11.1-90.7 ± 8.4°); shoulder external rotation increased dramatically (foot contact-ball release: 30.8 ± 24.6-165.2 ± 9.7°). For every 10° increase in maximum shoulder rotation, shoulder superior force increased by 2.3% body weight (
Conclusion
UNASSIGNED
Increased shoulder abduction at ball release and increased maximum shoulder external rotation were associated with greater superior and distraction forces in the shoulder. Pitchers can consider decreasing shoulder abduction at later stages of the pitch to around 80° in order to minimize shoulder superior force, with no impact on ball velocity.
Identifiants
pubmed: 35845618
doi: 10.1177/17585732211010300
pii: 10.1177_17585732211010300
pmc: PMC9284251
doi:
Types de publication
Journal Article
Langues
eng
Pagination
90-98Informations de copyright
© 2021 The British Elbow & Shoulder Society.
Déclaration de conflit d'intérêts
Declaration of Conflicting Interest: The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: JD has received consulting fees from Arthrex, Linvatec, Merck Sharp & Dohme, Trice Medical, and Wright Medical Technology; royalties from Linvatec and Conmed; research support from Arthrex; and hospitality payments from Horizon Pharma.
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