Age-associated changes in the spectral and statistical parameters of surface electromyogram of tibialis anterior

Siddiqi, A, Poosapadi Arjunan, S and Kumar, D 2016, 'Age-associated changes in the spectral and statistical parameters of surface electromyogram of tibialis anterior', BioMed Research International, vol. 2016, 7159701, pp. 1-6.


Document type: Journal Article
Collection: Journal Articles

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Title Age-associated changes in the spectral and statistical parameters of surface electromyogram of tibialis anterior
Author(s) Siddiqi, A
Poosapadi Arjunan, S
Kumar, D
Year 2016
Journal name BioMed Research International
Volume number 2016
Article Number 7159701
Start page 1
End page 6
Total pages 6
Publisher Hindawi Publishing Corporation
Abstract Age-related neuromuscular change of Tibialis Anterior (TA) is a leading cause of muscle strength decline among the elderly. This study has established the baseline for age-associated changes in sEMG of TA at different levels of voluntary contraction. We have investigated the use of Gaussianity and maximal power of the power spectral density (PSD) as suitable features to identify age-associated changes in the surface electromyogram (sEMG). Eighteen younger (20-30 years) and 18 older (60-85 years) cohorts completed two trials of isometric dorsiflexion at four different force levels between 10% and 50% of the maximal voluntary contraction. Gaussianity and maximal power of the PSD of sEMG were determined. Results show a significant increase in sEMG's maximal power of the PSD and Gaussianity with increase in force for both cohorts. It was also observed that older cohorts had higher maximal power of the PSD and lower Gaussianity. These age-related differences observed in the PSD and Gaussianity could be due to motor unit remodelling. This can be useful for noninvasive tracking of age-associated neuromuscular changes.
Subject Signal Processing
Rehabilitation Engineering
Biomedical Engineering not elsewhere classified
DOI - identifier 10.1155/2016/7159701
Copyright notice © 2016 Ariba Siddiqi et al.
ISSN 2314-6141
Additional Notes Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
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