Grip strength is not related to increased medial elbow joint-space gapping induced by repetitive pitching

© 2020 The Author(s).

Bibliographische Detailangaben
Veröffentlicht in:JSES international. - 2020. - 4(2020), 4 vom: 18. Dez., Seite 1026-1030
1. Verfasser: Hattori, Hiroshi (VerfasserIn)
Weitere Verfasser: Akasaka, Kiyokazu, Otsudo, Takahiro, Hall, Toby
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:JSES international
Schlagworte:Journal Article Elbow baseball grip strength medial elbow joint-space gapping repetitive pitching ultrasound
Beschreibung
Zusammenfassung:© 2020 The Author(s).
BACKGROUND: Pitching induces elbow valgus stress, which can lead to an increase in medial elbow joint-space gapping when repeated. Previous basic research on the medial elbow joint shows that the contraction associated with gripping reduces medial elbow joint-space gapping. However, no studies have investigated the relationship between grip strength and increased medial elbow joint-space gapping during repetitive pitching. The purpose of this study was to investigate whether grip strength is related to medial elbow joint-space gapping during repetitive pitching. Our hypothesis was that increased grip strength would correlate with a reduction in medial elbow joint-space gapping
METHODS: A total of 25 high school baseball players participated in this study. Each subject pitched 100 times. The medial elbow joint-space gapping and grip strength were measured before and after pitching. Correlation analysis was used to identify the relationship between medial elbow joint-space gapping and grip strength
RESULTS: Medial elbow joint-space gapping (mm) increased by 25.5% ± 8.0% after 100 pitches (gapping before, 5.0 ± 0.9; gapping after, 6.2 ± 1.1; P < .001). Grip strength (kg) after 100 pitches decreased by 2.8% ± 7.4% to that before pitching (before, 40.4 ± 5.5; after 39.2 ± 5.6; P < .05). There was no significant correlation between the change rate of medial elbow joint gapping and grip strength at any time (grip strength: before pitching, P = .74; after pitching, P = .40; change rate from before to after pitching, P = .24)
CONCLUSIONS: Grip strength is not related to increased medial elbow joint-space gapping induced by repetitive pitching. This indicates that physical ability expressed by grip strength is not associated with preventing increases in medial elbow joint-space gapping during repetitive pitching. Further studies are required to investigate the stabilization mechanism of the medial elbow joint during pitching
Beschreibung:Date Revised 04.08.2024
published: Electronic-eCollection
Citation Status PubMed-not-MEDLINE
ISSN:2666-6383
DOI:10.1016/j.jseint.2020.07.007