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最終更新日：2026/06/03
宮本 直和
ミヤモト ナオカズ
(Naokazu Miyamoto)
論文
- タイトル
- タイトル（英）
- Changes in Passive Muscle Stiffness Following Biceps Femoris Strain Injury in Track‐and‐Field Athletes: Cross‐Sectional and Longitudinal Analyses
- 参照URL
- https://researchmap.jp/read0094733/published_papers/53852629
- 著者
- 著者（英）
- Shuhei Kukuchi,Ishin Togashi,Masashi Aoyagi,Yuki Shiota,Takayuki Komatsu,Yuji Takazawa,Naokazu Miyamoto
- 担当区分
- 最終著者,責任著者
- 概要
- 概要（英）
- ABSTRACT A history of muscle strain injury has consistently been identified as one of the strongest risk factors for future muscle strain injuries. However, information on the characteristics associated with a history of muscle strain injury is limited. This study aimed to examine whether passive muscle stiffness changes following biceps femoris long head (BFlh) strain injury in track‐and‐field athletes through cross‐sectional and longitudinal analyses. In Study 1 (cross‐sectional), 13 male track‐and‐field athletes with unilateral BFlh strain injury history underwent passive BFlh stiffness assessment using ultrasound shear wave elastography of previously injured and uninjured limbs. In Study 2 (longitudinal), seven athletes who sustained BFlh strain injury during the competitive season were followed from pre‐injury baseline through return‐to‐sport. Passive BFlh stiffness was assessed in both limbs at baseline, acute phase, rehabilitation phase, and return‐to‐sport phase. In Study 1, passive BFlh stiffness was significantly greater in the previously injured limb than in the uninjured limb ( p = 0.001). In Study 2, a significant limb × time interaction was observed ( p = 0.001). In the injured limb, passive BFlh stiffness at the rehabilitation phase was significantly greater than at baseline and remained elevated at return‐to‐sport, whereas it returned to baseline in the uninjured limb. Passive BFlh stiffness increases following strain injury and persists through return‐to‐sport. These findings reveal that strain injury leads to lasting increases in passive muscle stiffness, which may have implications for post‐injury muscle function.
- 出版者・発行元
- 出版者・発行元（英）
- Wiley
- 誌名
- 誌名（英）
- Scandinavian Journal of Medicine & Science in Sports
- 巻
- 36
- 号
- 3
- 開始ページ
- 終了ページ
- 出版年月
- 2026年3月
- 査読の有無
- 査読有り
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- 0905-7188
- DOI URL
- https://doi.org/10.1111/sms.70254
- 共同研究・競争的資金等の研究課題