Analysis of intramuscular motor unit coherence in the tibialis anterior muscle as a tool for the assessment of robot-assisted rehabilitation

A. Úbeda*, A. Del Vecchio, I. Vujaklija, Dario Farina

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)


Robot-assisted rehabilitation has emerged as an advantageous tool in the recovery of patients suffering from abnormal motor conditions. The assessment of the electrophysiological behavior of the muscles involved in this rehabilitation process can provide important hints of the patient functional recovery. Such analysis has been commonly performed through the processing of bipolar surface electromyography (sEMG). Here we introduce recent techniques based on the acquisition of high-density electromyography (HD-sEMG) to be used as a tool for the assessment of robot-assisted rehabilitation. To that end, the activity of the tibialis anterior was measured during the performance of periodical ankle dorsiflexion with different frequencies and amplitudes. Intramuscular motor unit coherence was then computed showing peaks at the frequency of movement (delta band) but more interestingly at the beta band. These changes in amplitude and position of the coherence peaks may provide meaningful metrics for gait rehabilitation procedures where the muscle contraction is as well periodical and variable in strength and speed.

Original languageEnglish
Title of host publicationProceedings of the 4th International Conference on NeuroRehabilitation, ICNR 2018
Subtitle of host publicationConverging Clinical and Engineering Research on Neurorehabilitation III
EditorsLorenzo Masia, Silvestro Micera, Metin Akay, Jose L. Pons
Number of pages5
ISBN (Electronic)978-3-030-01845-0
Publication statusPublished - 1 Jan 2019
MoE publication typeA4 Article in a conference publication
EventInternational Conference on NeuroRehabilitation - Pisa, Italy
Duration: 16 Oct 201820 Oct 2018
Conference number: 4

Publication series

NameBiosystems and Biorobotics
ISSN (Print)2195-3562
ISSN (Electronic)2195-3570


ConferenceInternational Conference on NeuroRehabilitation
Abbreviated titleICNR


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