A neurobiomechanical approach to understanding the mechanisms involved in the regulation of agonist-antagonist cocontraction during voluntary activity

old_uid10667
titleA neurobiomechanical approach to understanding the mechanisms involved in the regulation of agonist-antagonist cocontraction during voluntary activity
start_date2012/01/12
schedule10h30-12h
onlineno
location_infosalle de réunion de l’UFR
summaryThis talk will present recent, current – and forthcoming – studies conducted using an approach which combines biomechanical musculoskeletal modeling, neurophysiology and neurosciences to gain further understanding of the mechanisms involved in the regulation of agonist-antagonist cocontraction during voluntary isometric contractions and dynamic movements. On the one hand, we propose an original EMG-based biomechanical model to appropriately quantify the cocontraction index from reliable estimates of the contribution of the agonist and antagonist muscle groups to the net joint moment. On the other hand, we use EEG to investigate the cerebral correlates of antagonist muscles activity, combined with EMG to investigate the relationship between the modulation of the level of corticomuscular interaction and the changes in agonist-antagonist cocontraction in strength-trained and spinal cord injured participants.
responsiblesHoffmann, Marin