Investigation of the training load characteristics of high intensity interval training in swimming

• Project/Area Number: 17K01714
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Sports science
• Research Institution: University of Tsukuba
• Principal Investigator: Sengoku Yasuo 筑波大学, 体育系, 准教授 (30375365)
• Co-Investigator(Kenkyū-buntansha): 下山 好充 新潟医療福祉大学, 健康科学部, 教授 (20375364) ; 山川 啓介 日本女子体育大学, 体育学部, 講師 (60783785)
• Project Period (FY): 2017-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 圧力分布測定 / 筋電図解析 / ストローク頻度 / 手部スピード / 筋活動量 / 共活動 / 推進力 / 推進効率 / 表面筋電図測定 / 手部流体力 / 泳動作 / ストローク長 / ローリング角度 / ストローク局面 / トレーニング / 運動強度 / 筋電図 / 流体力

Outline of Final Research Achievements

This study aimed to clarify the characteristics of high intensity training in swimming by investigating the effect of different swimming intensity on the swimming technique. As results, propelling efficiency did not change between maximal effort front crawl swim and low intensity swimming. However, when the stroke frequency was increased above that of maximal effort swim, it was clarified that co-activation level of the agonist and antagonist muscle at the upper limb increased. Furthermore, the underwater stroke movement change during the latter stroke phase, and resulted in an un-efficient stroke technique. From the present research, even the beneficial effect of high intensity training is reported on physiological aspect, the importance to adjust the stroke frequency to an optimal level was indicated when prescribing a high intensity training program in competitive swimming event.

Academic Significance and Societal Importance of the Research Achievements

スポーツ現場において有酸素性能力と無酸素性能力の双方を向上することのできる高強度トレーニングが注目されているが、高い強度で泳ぐことが泳技術に与える影響については明らかとなっていない．本研究結果より，低強度泳と高強度泳時における3次元動作，手部推進力および筋活動量の変化を学術的に究明した．そのことにより，競泳競技のトレーニング現場において高強度トレーニングを処方する際に，水泳運動で重要となる泳技術への影響を踏まえたトレーニングプログラムの立案法について提案することが可能となった．

Research Products

• [Journal Article] Relationship between stroke frequency and hand propulsive force in the front crawl (2021)
  • Author(s): 古賀大樹, 角川隆明, 仙石泰雄, 本間三和子, 高木英樹
  • Journal Title: Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) Volume: 66 Issue: 0 Pages: 207-218
  • DOI: 10.5432/jjpehss.20123
  • NAID: 130008031194
  • ISSN: 0484-6710, 1881-7718
  • Peer Reviewed / Open Access
• [Journal Article] Effects of exceeding stroke frequency of maximal effort on hand kinematics and hand propulsive force in front crawl (2020)
  • Author(s): Daiki Koga, Tomohiro Gonjo, Eisuke Kawai, Takaaki Tsunokawa, Shin Sakai, Yasuo Sengoku, Miwako Homma, Hideki Takagi
  • Journal Title: Sports Biomechanics Volume: online Issue: 1 Pages: 15-27
  • DOI: 10.1080/14763141.2020.1814852
  • Peer Reviewed / Open Access
• [Presentation] How we can increase propulsive force during swimming (2021)
  • Author(s): Yasuo Sengoku
  • Organizer: IV Congreso Internacional de Ciencias Aplicadas a la Natacion
  • Int'l Joint Research / Invited
• [Presentation] クロール泳におけるストローク頻度上昇時の筋活動量－最大努力以上の頻度における変化－ (2020)
  • Author(s): 仙石泰雄，中村優介，山川啓介，高木英樹
  • Organizer: 第74回日本体力医学会大会
• [Presentation] Mechanism and strategy to increase propulsive force during swimming -Pressure distribution analysis approach-. (2020)
  • Author(s): Yasuo Sengoku
  • Organizer: III CRCE SESI SYMPOSIUM (Online)
  • Int'l Joint Research / Invited
• [Presentation] クロール泳におけるストローク頻度増加時における筋活動様式の変化 (2019)
  • Author(s): 中村優介、山川啓介、仙石泰雄
  • Organizer: 2019年日本水泳・水中運動学会年次大会