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Validation of an Inertial Sensor System for Swing Analysis in Golf

1
School of Mechanical Engineering, Chemnitz University of Technology, 09107 Chemnitz, Germany
2
Department of Sports Equipment & Technology, Chemnitz University of Technology, 09107 Chemnitz, Germany
3
Department of Food and Nutrition, and Sport Science, University of Gothenburg, 40530 Gothenburg, Sweden
*
Author to whom correspondence should be addressed.
Presented at the 12th conference of the International Sports Engineering Association, Brisbane, Queensland, Australia, 26–29 March 2018.
Proceedings 2018, 2(6), 246; https://doi.org/10.3390/proceedings2060246
Published: 12 February 2018
(This article belongs to the Proceedings of ISEA 2018)
PDF [609 KB, uploaded 23 March 2018]

Abstract

Wearable inertial sensor systems are an upcoming tool for self-evaluation in sports, and can be used for swing analysis in golf. The aim of this work was to determine the validity and repeatability of an inertial sensor system attached to a player’s glove using a radar system as a reference. 20 subjects performed five full swings with each of three different clubs (wood, 7-iron, wedge). Clubhead speed was measured simultaneously by both sensor systems. Limits of Agreement were used to determine the accuracy and precision of the inertial sensor system. Results show that the inertial sensor system is quite accurate but with a lack of precision. Random error was quantified to approximately 12%. The measurement error was dependent on the club type and was weakly negatively correlated to the magnitude of clubhead speed.
Keywords: IMU; TrackMan; radar system; wearables; swing speed; clubhead speed; validity; reliability; limits of agreement IMU; TrackMan; radar system; wearables; swing speed; clubhead speed; validity; reliability; limits of agreement
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Lückemann, P.; Haid, D.M.; Brömel, P.; Schwanitz, S.; Maiwald, C. Validation of an Inertial Sensor System for Swing Analysis in Golf. Proceedings 2018, 2, 246.

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