Effect of auditory feedback of propulsive force on motion in swimming

• Project/Area Number: 24500778
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Sports science
• Research Institution: Niigata University of Health and Welfare (2014); Fukuoka University (2012-2013)
• Principal Investigator: ICHIKAWA Hiroshi 新潟医療福祉大学, 健康科学部, 講師 (20375463)
• Co-Investigator(Kenkyū-buntansha): TABA Shoichiro 福岡大学, スポーツ科学部, 講師 (50309928) ; TAGUCHI Masahiro 福岡大学, スポーツ科学部, 教授 (80078542)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: クロール泳 / 推進力 / 圧力 / フィードバック / 水泳 / 競泳 / 泳動作

Outline of Final Research Achievements

The purpose of study was to develop an auditory realtime feedback system for improving swimming technique. The propulsive force on a front crawl swimmer's hands was selected as feedback signal. The amplitude of force was estimated using four pressure transducers in sensor logger system attached on a swimmer's lumber. The signal of propulsive force wasconverted to auditory frequency, and output via a waterproofed headphones. The accuracy to estimate the propulsive force from measurements of pressures would not be enough in cases of unsteady motion of hand.
The development of the system would make it possible to discuss the effect and contribution of the feedback of force on swimming motion in order to improve swimming technique.

Research Products

• [Presentation] The time difference between the increase of hand pressure and the beginning of hand's backward movement during catch in front crawl (2014)
  • Author(s): Ikuta Y., Ichikawa H., Matsumoto T., Tachi M., Matsuda Y.
  • Organizer: XIIth International Symposium on Biomechanics and Medicine in Swimming
  • Place of Presentation: Canberra, Australia
  • Year and Date: 2014-04-28 – 2014-05-02
• [Presentation] The time difference between the increase of hand pressure and the beginning of hand's backward movement during catch in front crawl. (2014)
  • Author(s): Ikuta Y, Ichikawa H, Matsumoto T, Tachi M, Matsuda Y
  • Organizer: Biomechanics and Medicine in Swimming 2014
  • Place of Presentation: Australian Institute of Sport, Canberra, Australia