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最終更新日：2024/10/17

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クボヤスユキ (Yasuyuki Kubo)

論文

タイトル
タイトル（英）: A Practical Estimation Method for Center of Mass Velocity in Swimming Direction During Front Crawl Swimming.
参照URL: https://researchmap.jp/ykubo_research/published_papers/31671841
著者
著者（英）: Yuji Matsuda,Yoshihisa Sakurai,Keita Akashi,Yasuyuki Kubo
担当区分
概要
概要（英）: Center of mass (CoM) velocity variation in swimming direction is related to swimming performance and efficiency. However, it is difficult to calculate the CoM velocity during swimming. Therefore, we aimed to establish a practical estimation method for the CoM velocity in swimming direction during front crawl swimming with underwater cameras. Ten swimmers were recorded during front crawl swimming (25 m, maximal effort) using a motion capture system with 18 underwater and 9 land cameras. Three CoM velocity estimation methods were constructed (single-hip velocity, both-hips velocity, and both-hips velocity with simulated arm velocity correction). Each model was validated against the actual CoM velocity. The difference between the single-hip velocity and the actual CoM velocity in swimming direction was significantly larger compared with that of the other 2 models. Furthermore, the accuracy of CoM velocity estimation was increased when both-hips velocity was corrected using the simulated arm velocity. The method allowed estimation of the CoM velocity with only 2 underwater cameras with a maximal difference of 0.06 m·s-1. This study established a novel and practical method for the estimation of the CoM velocity in swimming direction during front crawl swimming.
出版者・発行元
出版者・発行元（英）
誌名
誌名（英）: Journal of applied biomechanics
巻: 34
号: 4
開始ページ: 342
終了ページ: 347
出版年月: 2018年8月1日
査読の有無
招待の有無
掲載種別: 研究論文（学術雑誌）
ISSN
DOI URL: https://doi.org/10.1123/jab.2017-0188
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