Relationship between the carrying angle, medial instability of the elbow, and general joint laxity in high school baseball pitchers: a cross-sectional study
Koichiro Yanai, MD; Tsuyoshi Tajika, MD, PhD; Yuhei Hatori, MD; Fukuhisa Ino, MD; Ryosuke Miyamoto, MD; Masataka Kamiyama, MD; Noritaka Hamano, MD, PhD; Tsuyoshi Sasaki, MD, PhD · 2025 · JSES International
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract
Background: An increase in carrying angle (CA) on the throwing side has been reported in professional baseball pitchers. However, no reports have investigated high school baseball pitchers, and the associated factors remain unknown. This study aimed to examine the difference in the CA between the throwing and nonthrowing sides in high school baseball pitchers and to investigate the association between the CA and medial instability of the elbow and general joint laxity (GJL). Methods: We surveyed 216 high school baseball pitchers who underwent medical checkups during the 2023-24 off-season. All
Abstract by Koichiro Yanai, MD; Tsuyoshi Tajika, MD, PhD; Yuhei Hatori, MD; Fukuhisa Ino, MD; Ryosuke Miyamoto, MD; Masataka Kamiyama, MD; Noritaka Hamano, MD, PhD; Tsuyoshi Sasaki, MD, PhD, JSES International (2025) — licensed CC BY 4.0.
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Metadata source: DOAJ · DOI 10.1016/j.jseint.2025.02.023