Pattern recognition in cyclic and discrete skills performance from inertial measurement units

SEIFERT, Ludovic, L’HERMETTE, Maxime, KOMAR, John, ORTH, Dominic, MELL, Florian, MERRIAUX, Pierre, GRENET, Pierre, CARITU, Yanis, HÉRAULT, Romain, DOVGALECS, Vladislavs and DAVIDS, Keith (2014). Pattern recognition in cyclic and discrete skills performance from inertial measurement units. Procedia Engineering, 72, 196-201.

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Link to published version:: 10.1016/j.proeng.2014.06.033


The aim of this study is to compare and validate an Inertial Measurement Unit (IMU) relative to an optic system, and to propose methods for pattern recognition to capture behavioural dynamics during sport performance. IMU validation was conducted by comparing the motions of the two arms of a compass, which was equipped with IMUs and reflective landmarks detected by a multi-camera system. Spearman's rank correlation tests showed good correlations between the IMU and multi-camera system, especially when the angles were normalized. Bland-Altman plot, root mean square and the normalized pairwise variability index showed low differences between the two systems, confirming the good accuracy levels of the IMUs. Regarding pattern recognition, joint angle and limb orientation was respectively studied for 25 m during breaststroke swimming and 10 m of indoor rock climbing in athletes of various skill levels. Pattern recognition was also conducted on a macroscopic parameter that captured inter-limb coordination. IMUs revealed the potential to assess movement and coordination variability between and within individuals from joint angle measures in swimming and limb orientation time-series data in climbing.

Item Type: Article
Research Institute, Centre or Group: Centre for Sports Engineering Research
Identification Number: 10.1016/j.proeng.2014.06.033
Depositing User: Hilary Ridgway
Date Deposited: 13 Aug 2014 08:55
Last Modified: 13 Aug 2014 08:55

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