Sensors 2014, 14(7), 12598-12622; doi:10.3390/s140712598
Review

The Effectiveness of FES-Evoked EMG Potentials to Assess Muscle Force and Fatigue in Individuals with Spinal Cord Injury

1,2email, 3email, 1,* email, 1email and 3email
Received: 28 May 2014; in revised form: 9 July 2014 / Accepted: 9 July 2014 / Published: 14 July 2014
(This article belongs to the Special Issue Biomedical Sensors and Systems)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The evoked electromyographic signal (eEMG) potential is the standard index used to monitor both electrical changes within the motor unit during muscular activity and the electrical patterns during evoked contraction. However, technical and physiological limitations often preclude the acquisition and analysis of the signal especially during functional electrical stimulation (FES)-evoked contractions. Hence, an accurate quantification of the relationship between the eEMG potential and FES-evoked muscle response remains elusive and continues to attract the attention of researchers due to its potential application in the fields of biomechanics, muscle physiology, and rehabilitation science. We conducted a systematic review to examine the effectiveness of eEMG potentials to assess muscle force and fatigue, particularly as a biofeedback descriptor of FES-evoked contractions in individuals with spinal cord injury. At the outset, 2867 citations were identified and, finally, fifty-nine trials met the inclusion criteria. Four hypotheses were proposed and evaluated to inform this review. The results showed that eEMG is effective at quantifying muscle force and fatigue during isometric contraction, but may not be effective during dynamic contractions including cycling and stepping. Positive correlation of up to r = 0.90 (p < 0.05) between the decline in the peak-to-peak amplitude of the eEMG and the decline in the force output during fatiguing isometric contractions has been reported. In the available prediction models, the performance index of the eEMG signal to estimate the generated muscle force ranged from 3.8% to 34% for 18 s to 70 s ahead of the actual muscle force generation. The strength and inherent limitations of the eEMG signal to assess muscle force and fatigue were evident from our findings with implications in clinical management of spinal cord injury (SCI) population.
Keywords: evoked electromyographic (eEMG) signal; FES-evoked contraction; muscle force; muscle fatigue; M-wave; Spinal Cord Injury (SCI)
PDF Full-text Download PDF Full-Text [884 KB, uploaded 14 July 2014 14:41 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Ibitoye, M.O.; Estigoni, E.H.; Hamzaid, N.A.; Wahab, A.K.A.; Davis, G.M. The Effectiveness of FES-Evoked EMG Potentials to Assess Muscle Force and Fatigue in Individuals with Spinal Cord Injury. Sensors 2014, 14, 12598-12622.

AMA Style

Ibitoye MO, Estigoni EH, Hamzaid NA, Wahab AKA, Davis GM. The Effectiveness of FES-Evoked EMG Potentials to Assess Muscle Force and Fatigue in Individuals with Spinal Cord Injury. Sensors. 2014; 14(7):12598-12622.

Chicago/Turabian Style

Ibitoye, Morufu O.; Estigoni, Eduardo H.; Hamzaid, Nur A.; Wahab, Ahmad K.A.; Davis, Glen M. 2014. "The Effectiveness of FES-Evoked EMG Potentials to Assess Muscle Force and Fatigue in Individuals with Spinal Cord Injury." Sensors 14, no. 7: 12598-12622.

Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert