Statistical Extraction Method for Revealing Key Factors from Posture before Initiating Successful Throwing Technique in Judo
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Doctoral Program in Computer Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
2
Faculty of Engineering, Information and Systems, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
3
JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Gregorij Kurillo
Sensors 2021, 21(17), 5884; https://doi.org/10.3390/s21175884
Received: 14 July 2021
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Revised: 12 August 2021
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Accepted: 18 August 2021
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Published: 1 September 2021
(This article belongs to the Section Wearables)
Many methods such as biomechanics and coaching have been proposed to help people learn a certain movement. There have been proposals for methods to discover characteristics of movement based on information obtained from videos and sensors. Especially in sports, it is expected that these methods can provide hints to improve movement skills. However, conventional methods focus on individual movements, and do not consider cases where external factors influence the movement, such as combat sports. In this paper, we propose a novel method called the Extraction for Successful Movement method (XSM method). Applying the method, this paper focuses on throwing techniques in judo to discover key factors that induce successful throwing from the postures right before initiating the throwing techniques. We define candidate factors by observing the video scenes where the throwing techniques are successfully performed. The method demonstrates the significance of the key factors according to the predominance of factors by
Keywords:
motion sensing; skill extraction; throwing technique of judo; statistical approach; coaching technique
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MDPI and ACS Style
Kato, S.; Yamagiwa, S. Statistical Extraction Method for Revealing Key Factors from Posture before Initiating Successful Throwing Technique in Judo. Sensors 2021, 21, 5884. https://doi.org/10.3390/s21175884
AMA Style
Kato S, Yamagiwa S. Statistical Extraction Method for Revealing Key Factors from Posture before Initiating Successful Throwing Technique in Judo. Sensors. 2021; 21(17):5884. https://doi.org/10.3390/s21175884
Chicago/Turabian StyleKato, Satoshi, and Shinichi Yamagiwa. 2021. "Statistical Extraction Method for Revealing Key Factors from Posture before Initiating Successful Throwing Technique in Judo" Sensors 21, no. 17: 5884. https://doi.org/10.3390/s21175884
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