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Med J Tabriz Uni Med Sciences. 2024;46(1): 97-106.
doi: 10.34172/mj.2024.017
  Abstract View: 118
  PDF Download: 32

Pediatrics

Short Communication

Investigation of electromyography of the masseter and temporal muscles in children with Down syndrome aged 2 to 12 years during maximal voluntary isometric contraction and rest

Abdol Reza Yavari 1 ORCID logo, Mahdi Panahian 2* ORCID logo, Hossein Soltaninejad 3 ORCID logo, Mohamad Reza Arab 4 ORCID logo, Marzieh Babaei 5 ORCID logo

1 Department of Speech Therapy, School of Rehabilitation, Arak University of Medical Sciences, Arak, Iran
2 Department of Audiology, School of Rehabilitation, Arak University of Medical Sciences, Arak, Iran
3 Department of Occupational Therapy, School of Rehabilitation Sciences, Arak University of Medical Sciences, Arak, Iran
4 Department of Biomedical Engineering, Arak University of Medical Sciences, Arak, Iran
5 Physical Medicine and Rehabilitation Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
*Corresponding Author: Email: aud.mahdi@yahoo.com

Abstract

Background. Muscle weakness and low muscle tone may cause chewing and swallowing disorders in people with Down syndrome. This study investigated the electromyography of the masseter and temporal muscles in children with Down syndrome, aged 2 to 12, during maximal voluntary isometric contraction and rest.

Methods. The current descriptive-analytical and case-control study investigated the electromyography frequency indicators of the masseter and temporal muscles at maximum voluntary contraction and resting states in 15 children aged 2 to 12 with Down syndrome and 15 normal children of the same age.

Results. The average frequency of the mean and median in the electrical signal of the masseter and temporal muscles on the left and right sides and in two different positions in children with Down syndrome is lower than in normal children. In comparing the average frequency of the mean, except for the left and right temporal muscles in the maximum voluntary isometric contraction and the left master muscle during rest, there is a significant difference in the rest. Also, in comparing the average frequency of the median, except for the left and right temporal muscles in the resting state, there are non-significant differences in the rest of the cases.

Conclusion. The average frequency of the electrical signal of the masseter and temporal muscles in children with Down syndrome is lower than that of normal children. Unlike typically developing children, those with Down syndrome struggle with chewing and swallowing.

Practical Implications. The data obtained from this study contributes to the enhancement of interventions and treatments for patients with Down syndrome.


How to cite this article: Yavari AR, Panahian M, Soltaninejad H, Arab MR, Babaee M. Investigation of electromyography of the masseter and temporal muscles in children with Down syndrome aged 2 to 12 years during maximal voluntary isometric contraction and rest. Med J Tabriz Uni Med Sciences. 2024;46(1):97-106. doi: 10.34172/mj.2024.017. Persian.
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Submitted: 13 Nov 2022
Accepted: 17 Jun 2023
ePublished: 30 Jan 2024
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