KINEMATIC FEATURES OF REACH AND GRASP MOVEMENTS IN STROKE REHABILITATION USING ACCELEROMETERS

Julien Stamatakis, Adriana Gonzalez, Benoit Caby, Stephanie Lefebvre, Yves Vandermeeren, Benoit Macq

Abstract

Rehabilitation is an essential process to recover impaired motor functions after stroke. Typically, visual marker-based systems such as the Codamotion are used, as kinematic analyses seem to be an excellent tool to quantify objectively the effects of rehabilitation processes. However, this solution remains expensive. A low-cost accelerometer-based system has been developed and its performances were compared to those of the Codamotion system, used as a gold standard. Thanks to a model for prediction and an error model Kalman filter, the recorded signals were broken up into gravity and dynamic accelerations components that were placed in a global frame and compared to the Codamotion signals. The vertical z-axis was well reconstructed and used as a basis for kinematic analyses. Different features expressing movement speed, control strategy or movement smoothness have been computed from both systems and compared. Despite the fact that some of them showed differences between both systems, the accelerometer-based system computed features with a discriminant power comparable to the ones derived from the Codamotion. In conclusion, this accelerometer-based system is a low-cost alternative to expensive visual marker-based systems that could be extensively used for rehabilitation processes in routine clinical practice or even at home.

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Paper Citation


in Harvard Style

Stamatakis J., Gonzalez A., Caby B., Lefebvre S., Vandermeeren Y. and Macq B. (2012). KINEMATIC FEATURES OF REACH AND GRASP MOVEMENTS IN STROKE REHABILITATION USING ACCELEROMETERS . In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2012) ISBN 978-989-8425-89-8, pages 199-205. DOI: 10.5220/0003711701990205


in Bibtex Style

@conference{biosignals12,
author={Julien Stamatakis and Adriana Gonzalez and Benoit Caby and Stephanie Lefebvre and Yves Vandermeeren and Benoit Macq},
title={KINEMATIC FEATURES OF REACH AND GRASP MOVEMENTS IN STROKE REHABILITATION USING ACCELEROMETERS},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2012)},
year={2012},
pages={199-205},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003711701990205},
isbn={978-989-8425-89-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2012)
TI - KINEMATIC FEATURES OF REACH AND GRASP MOVEMENTS IN STROKE REHABILITATION USING ACCELEROMETERS
SN - 978-989-8425-89-8
AU - Stamatakis J.
AU - Gonzalez A.
AU - Caby B.
AU - Lefebvre S.
AU - Vandermeeren Y.
AU - Macq B.
PY - 2012
SP - 199
EP - 205
DO - 10.5220/0003711701990205