オツド　タカヒロ   乙戸　崇寛    所属   医療保健学部 リハビリテーション学科　理学療法学専攻    職種   教授
言語種別	英語
発行・発表の年月	2022/12
形態種別	学術論文
査読	査読あり
標題	Comparison of elbow valgus laxity and medial elbow stabilizer parameters during repetitive pitching between high school baseball players with and without a history of medial elbow injury
執筆形態	共著
掲載誌名	J Shoulder Elbow Surg
掲載区分	国外
巻・号・頁	31(12),pp.2602-260
著者・共著者	Hiroshi Hattori, Kiyokazu Akasaka, Takahiro Otsudo, Toby Hall, Katsunobu Sakaguchi, Yomei Tachibana
概要	Sixteen high school baseball players with no history of medial elbow injury (No-Injury group) and 14 high school baseball players with a history of medial elbow injury (Injury History group) participated. The participants pitched 100 fastballs. Medial elbow joint-space gapping and strain ratio indicating tissue elasticity of ulnar collateral ligament (UCL) and forearm flexor-pronator muscles (FPMs) were measured by ultrasound before pitching and following each of five 20-pitch blocks. Student t-tests and Mann-Whitney U tests were used to compare each parameter between groups.The results of this study indicate that FPMs elasticity at baseline and during repetitive pitching in players with a history of medial elbow injury was less than in players without injury history. This may suggest that baseball players with a history of medial elbow injury increase support of their previously injured medial elbow by lowering FPMs elasticity to counteract elbow valgus stress generated during pitching, which may lead to long-term change in the FPMs. Therefore, physical management for this change may be important to prevent re-injury in baseball players with a history of medial elbow injury.
外部リンクURL	https://reader.elsevier.com/reader/sd/pii/S1058274622006917?token=C81B23FEC8B32B69AF977C58F0EB62C577618D2307B2297EAB3521BF32C23180F76277EF1CF8493CD07DA267A9254D53&originRegion=us-east-1&originCreation=20220925060011