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Dynamics and awareness of swimmers during underwater undulation swimming -Establishment of measuring system for under water movements-

Research Project

Project/Area Number 24300215
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Sports science
Research InstitutionUniversity of Tsukuba

Principal Investigator

TAKAGI Hideki  筑波大学, 体育系, 教授 (80226753)

Co-Investigator(Kenkyū-buntansha) NAKASHIMA Motomu  東京工業大学, 大学院情報理工学研究科, 教授 (20272669)
MIYOSHI Tasuku  岩手大学, 工学部, 准教授 (10392193)
Research Collaborator SHIMOJO Hirofumi  
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2014: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Keywords水中ドルフィンキック / 三次元動作分析 / 水中モーションキャプチャー / 水中筋電 / 身体感覚 / 運動制御 / ドルフィンキック / 水中動作分析 / 推進効率 / 流れ場解析 / 回流水槽 / 水中モーションキャプチャ
Outline of Final Research Achievements

Undulatory underwater swimming (UUS) is an important swimming technique after a start and after turns. It was considered that a higher swimming velocity (U) resulted from a higher kick frequency (f), and greater propelling efficiency, i.e., Strouhal number (St) and Froude efficiency (ηF), resulted from a lower f. The aim of this study was to investigate whether changing f affected U and St, ηF plus other kinematics of UUS.
In conclusion, increasing f did not affect U, but decreasing f significantly decreased U. Depending on the swimmer, it was expected that incremental changes in kick frequency may increase the average U, in fact there were three swimmers whose average swimming velocity was improved. Decreasing f had no effect on either ηF or St; however, increasing f had a negative effect on ηF. As for human undulation mode, the wavelength per body length significantly decreased while ηF maintaining , which means a decrement in f seems to be suitable for human undulation training.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (5 results)

All 2014 2012 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (3 results)

  • [Journal Article] Effect of imposing changes in kick frequency on kinematics during undulatory underwater swimming at maximal effort in male swimmers2014

    • Author(s)
      Hirofumi Shimojo, Yasuo Sengoku, Tasuku Miyoshi, Shozo Tsubakimoto, Hideki Takagi
    • Journal Title

      Human Movement Science

      Volume: 38 Pages: 94-105

    • DOI

      10.1016/j.humov.2014.09.001

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 屋内プールおよび回流水槽におけるドルフィンキック泳のキネマティクスと競泳泳者が抱く身体感覚2014

    • Author(s)
      下門洋文,仙石泰雄,椿本昇三,高木 英樹
    • Journal Title

      体育学研究

      Volume: 59 Pages: 1-6

    • NAID

      130004489718

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] ドルフィンキックのキック頻度と泳パフォーマンスの関係性2014

    • Author(s)
      下門洋文、仙石泰雄、三好扶、椿本昇三、高木英樹
    • Organizer
      日本水泳水中運動学会2014年次大会
    • Place of Presentation
      愛知学院大学(愛知県名古屋市)
    • Year and Date
      2014-11-16
    • Related Report
      2014 Annual Research Report
  • [Presentation] 一定泳速度における平泳ぎ中の足部流体力の変化2012

    • Author(s)
      角川隆明, 高木英樹, 仙石泰雄, 椿本昇三
    • Organizer
      2012年日本水泳水中運動学会年次大会
    • Place of Presentation
      福岡大学 (福岡県)
    • Year and Date
      2012-11-11
    • Related Report
      2012 Annual Research Report
  • [Presentation] 泳速度増加に応じたドルフィンキックのキネマティクス変化

    • Author(s)
      下門洋文,椿本昇三,高木英樹
    • Organizer
      日本水泳・水中運動学会2013年次大会
    • Place of Presentation
      早稲田大学所沢キャンパス(埼玉県所沢市)
    • Related Report
      2013 Annual Research Report

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Published: 2012-04-24   Modified: 2019-07-29  

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