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最終更新日：2026/05/29
西海 大地
(Daichi Nishiumi)
論文
- タイトル
- タイトル（英）
- The relationship between braking rate of force development, braking force impulse, push-off force distribution and jump performance: An exploratory study
- 参照URL
- https://researchmap.jp/dnishiumi/published_papers/53647557
- 著者
- 著者（英）
- Žiga Kozinc,Darjan Smajla,Daichi Nishiumi,Norikazu Hirose,Nejc Šarabon
- 担当区分
- 概要
- 概要（英）
- Introduction: This exploratory study examined how eccentric braking characteristics (braking rate of force development (RFD) and braking force impulse (FI) relate to push-off force distribution and jump height during bilateral and unilateral countermovement jumps (CMJ). Methods Data from 206 physically active individuals (basketball players and students) were retrospectively analyzed. Hierarchical multiple regression models predicted jump height, with sex and training status entered as covariates, followed by braking RFD and braking FI, and finally the early-to-late push-off FI ratio. Additional models examined whether braking variables predicted the FI ratio. Results In bilateral CMJ, braking variables and the FI ratio significantly improved model fit beyond sex and training status, with the FI ratio emerging as a strong independent predictor of jump height (lower early-to-late push-off FI ratio: β = −0.367, p < 0.001). Braking FI was positively associated with jump height (β = 0.165, p = 0.003), and braking RFD also showed a positive independent association in the final model (β = 0.197, p < 0.001). In unilateral CMJ, the FI ratio similarly predicted jump height (lower ratio: β = −0.311, p < 0.001), whereas braking RFD was not independently associated and braking FI showed a modest positive effect (β = 0.154, p = 0.009). Braking RFD positively predicted the FI ratio in both jump tasks, indicating an association with a more early-loaded push-off profile. Conclusion Jump height was consistently related to push-off force distribution, with relatively greater late-phase FI (i.e., a lower early-to-late ratio) associated with superior performance. Braking FI showed modest positive associations with jump height, whereas braking RFD primarily influenced push-off force distribution and displayed task-dependent relevance for performance.
- 出版者・発行元
- 出版者・発行元（英）
- SAGE Publications
- 誌名
- 誌名（英）
- Isokinetics and Exercise Science
- 巻
- 号
- 開始ページ
- 終了ページ
- 出版年月
- 2026年5月13日
- 査読の有無
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- 0959-3020
- DOI URL
- https://doi.org/10.1177/09593020261446743
- 共同研究・競争的資金等の研究課題