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Author: Sofia Ben Jebara

Affiliation: University of Carthage, Tunisia

Keyword(s): Pre-motor Onset, Motor Onset, Motor Offset, Muscle Preparation, EMG Signal.

Related Ontology Subjects/Areas/Topics: Biosignals and Biodevices Engineering ; Computer Systems in Sports ; Multimedia and Information Technology ; Signal Processing and Motor Behavior ; Sport Science Research and Technology

Abstract: In this paper, an algorithm to estimate key instants in EMG signal during pre-motrice and motrice phases is developed. It detects automatically i) the onset of muscle activity when an explicite recommendation of preparation is dictated (pre-motor onset), ii) the onset of effective muscle contraction (motor onset) and iii) the instant of muscle contraction desactivation (motor offset). The algorithm is based on statistical thresholding and counting the number of samples exceeding the threshlold. The counting is ensured by elaborated temporal scanning in forward and backward directions. The threshold calculus is based on statistics of the EMG signal during muscle activity and muscle rest. The algorithm is illustrated for the superficial flexor muscle during a handgrip exercice and is validated using subjective visual inspection and objective evaluation (error rate). The results revealed that relevant instants in EMG signal are well estimated.

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Paper citation in several formats:
Ben Jebara, S. (2015). Extraction of Some Relevant Instants from EMG Signal. In Proceedings of the 3rd International Congress on Sport Sciences Research and Technology Support - icSPORTS; ISBN 978-989-758-159-5; ISSN 2184-3201, SciTePress, pages 37-40. DOI: 10.5220/0005601200370040

@conference{icsports15,
author={Sofia {Ben Jebara}},
title={Extraction of Some Relevant Instants from EMG Signal},
booktitle={Proceedings of the 3rd International Congress on Sport Sciences Research and Technology Support - icSPORTS},
year={2015},
pages={37-40},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005601200370040},
isbn={978-989-758-159-5},
issn={2184-3201},
}

TY - CONF

JO - Proceedings of the 3rd International Congress on Sport Sciences Research and Technology Support - icSPORTS
TI - Extraction of Some Relevant Instants from EMG Signal
SN - 978-989-758-159-5
IS - 2184-3201
AU - Ben Jebara, S.
PY - 2015
SP - 37
EP - 40
DO - 10.5220/0005601200370040
PB - SciTePress

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