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最終更新日：2024/10/07
山下 大地
ヤマシタ ダイチ
(Daichi Yamashita)
論文
- タイトル
- タイトル（英）
- Biceps femoris long head stiffens after 2 weeks of training cessation in highly trained sprinters.
- 参照URL
- https://researchmap.jp/daichiyamashita/published_papers/46983321
- 著者
- 著者（英）
- Naokazu Miyamoto,Kazuhiko Yamazaki,Takafumi Iwasaki,Iñigo Mujika,Daichi Yamashita,Kosuke Hirata
- 担当区分
- 概要
- 概要（英）
- PURPOSE: Most athletes experience short-term training cessation because of illness, injury, post-season vacation, or other reasons. Passive muscle stiffness is a potential risk factor for a sprint-type hamstring strain injury, but limited information is available about the effect of short-term training cessation on passive muscle stiffness. The present study aimed to identify whether and how passive muscle stiffness of the biceps femoris long head (BFlh) would vary due to 2 weeks of training cessation in sprinters. METHODS: Passive BFlh shear-wave speed (a proxy for stiffness) was measured using ultrasound shear-wave elastography in 28 male sprinters, before and after 2 weeks of intervention. During the 2 weeks, the participants in the training-cessation group (n = 14) were allowed to maintain their normal daily activities but not to perform any physical training, including stretching and resistance exercises. The participants in the training continuation group (n = 14) performed the training (including maximum speed sprint, plyometric, and weight training) prescribed by their coaches 5 days per week. RESULTS: In the training-cessation group, passive BFlh shear-wave speed increased after the 2 weeks of training cessation (4.75 ± 0.77 to 5.00 ± 0.88 m/s, P < 0.001). In contrast, there was no significant difference before and after the 2 weeks of training continuation (4.90 ± 0.85 to 4.93 ± 0.85 m/s, P = 0.521). CONCLUSIONS: The present findings indicate that muscles stiffen by training cessation in sprinting athletes.
- 出版者・発行元
- 出版者・発行元（英）
- 誌名
- 誌名（英）
- European Journal of Applied Physiology
- 巻
- 号
- 開始ページ
- 終了ページ
- 出版年月
- 2024年6月21日
- 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
- DOI URL
- https://doi.org/10.1007/s00421-024-05536-w
- 共同研究・競争的資金等の研究課題