Changes of HD-sEMG maps of the upper limb during isometric endurance contractions

Author

Rojas-Martinez, M. ; Mananas, M.A.

Author_Institution

Biomed. Res. Networking Center in Bioeng., Biomater. & Nanomed., Spain

fYear

2014

fDate

26-30 Aug. 2014

Firstpage

3570

Lastpage

3573

Abstract

Recent research in the field of surface EMG recorded with 2D electrode arrays have shown muscle adaptations as reflected on the spatial activation of motor units in response to pain, direction of movement or fatigue. The purpose of this study was to evaluate time- changes in the activation maps of upper limb muscles during endurance tasks associated with the degrees of freedom at the elbow joint. Preliminary results show time-variations in the distribution of intensity, that is, in the spatial recruitment of motor units, and that such changes may be dependent on the type of task.

Keywords

biomechanics; biomedical electrodes; electromyography; fatigue; 2D electrode arrays; HD-sEMG maps; activation maps; degrees of freedom; elbow joint; endurance tasks; fatigue; intensity distribution; isometric endurance contractions; motor units; movement direction; muscle adaptations; pain; spatial activation; spatial recruitment; surface EMG; time-variations; upper limb muscles; Elbow; Electrodes; Electromyography; Fatigue; Joints; Market research; Muscles;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1557-170X

Type

conf

DOI

10.1109/EMBC.2014.6944394

Filename

6944394