Swimming technique evaluation and race analysis in open water swimming.

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K19991
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 59020:Sports sciences-related
• Research Institution: Niigata University of Health and Welfare
• Principal Investigator: Baba Yasuhiro 新潟医療福祉大学, 健康科学部, 講師 (50592614)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: レース分析 / GPS / 慣性センサ / OWS

Outline of Final Research Achievements

This study was investigated a method for evaluating swimming technique in open water swimming (OWS), in which swimmers swim in a open water environment. The swimming motion unique to OWS, in which the swimmer lifts his/her head above the water and checks for buoys ahead, was evaluated by using inertial sensors to change the way the swimmer's right and left hands stroke the water. In the measurement of the GPS system and heart rate monitor in the open water environment, missing values were observed in the speed and in the heart rate, there were differences in the measured values between the optical sensor on the wrist and the transmitter on the chest.
In the future, in addition to wind and waves, which are assumed to affect the measured values, the swimmer's own inertial sensory information of "water immersion" should also be considered.

Free Research Field

コーチング

Academic Significance and Societal Importance of the Research Achievements

オープンウォータースイミング (OWS) では、波や流れといった自然現象に合わせた泳技術が必要な上に、集団での泳ぎ方が重要となる。だが、OWS中の泳技術の評価法やレース分析法は確立されていないため、「自然環境での泳技術はどのように評価できるか？」という点においては、未解明である。本研究では、自然現象に合わせた泳技術を一部、明らかにした。今後、評価システムを開発することで、OWSの競技力向上やコーチング方法に繋げることは、OWS競技力向上、水難事故防止に貢献できる可能性があり、プールのみならず、自然環境下で自己保全能力を高める教育のための貴重な情報になることが予想される。