2021 Fiscal Year Final Research Report
Clarifying the adaptive process of the flow-nerve system at swimming skill learning.
| Project/Area Number |
19K20054
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 59020:Sports sciences-related
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| Research Institution | Niigata University of Health and Welfare |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 水泳 / 運動学習 / 流体力 / 筋シナジー / 圧力 / PIV |
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| Outline of Final Research Achievements |
The purpose of this study was to follow the process of learning to swimming skills in untrained swimmers and to describe the phenomenon of becoming swimming in human from a fluid-neuroscience perspective. This research enabled the construction of the measurement system that can visualize the flow around a swimmer in a in-door swimming pool environment using the stereo particle image velocimetry (stereo PIV) method. Measurements in this environment showed that the untrained swimmers were not only inefficiently recruiting their muscles, but were also unable to handle the fluid to propel themselves. This suggests that during the process of becoming swimming, neural adaptation causes selective efficiency of the muscles to be recruited, which is reflected in the flow around the foot in swimmers.
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| Free Research Field |
バイオメカニクス
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| Academic Significance and Societal Importance of the Research Achievements |
本研究により、これまで困難であったフィールド環境での泳者周りの流れの可視化が可能となった。また、キック泳中の推力を流れの状態から推定することに初めて成功した。キック泳において、熟練者は筋を使い分けることで手足の進路と向きを巧みに変化させ、渦を利用して推進していた。
ヒトが泳技能を習熟する過程で筋発揮と流体の状態が関係していることから、習熟過程におけるフィードバックとして、手足周りの流れの情報を利用すれば、効率的な泳法指導の提案が可能となる。
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