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Med J Tabriz Uni Med Sciences Health Services. 2020;42(4): 394-401.
doi: 10.34172/mj.2020.060
  Abstract View: 520
  PDF Download: 201

Original Article

The effect of long-term use of lumbar brace on the electromyography frequency spectrum of trunk and lower limbs in low back pain older adults with pronated feet during walking

AmirAli Jafarnezhadgero 1* ORCID logo, Farshad Ghorbanloo 2 ORCID logo, Ghader Ghane 2

1 partment of Physical Education and Sport Sciences, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
2 2MSc in Sport Biomechanics, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran
*Corresponding Author: *Corresponding author; E-mail: , Email: amiralijafarnezhad@gmail.com

Abstract

Background: Low back pain occurs between the lumbar vertebrae and the sacral bone and is affected by factors that often occur when trying to perform a particular operation or during a collision. The purpose of this study was to investigate the effects of long-term wearing of lumbar brace on the electromyography frequency spectrum of trunk and lower limbs in low back pain older adults with pronated feet during walking.

Methods: This research was of a semi-experimental type. Fifteen patients with low back pain and pronated feet were selected as an experimental group (age: 68.3 ± 2.7 years) and Fifteen patients with low back pain and pronated feet were selected as a control group (age: 69.0 ± 3.9 years).The lumbar brace used in this research was Sacro Lumbar Support, BB-OPPO 2065 model, Taiwans. The electrical activity of the lower limb and trunk muscles were recorded by the electromyography system during walking in both pre and post-test. All statistical analysis was done on SPSS software by two way ANOVA analyses test at significant level of 0.05.

Results: The findings in the experimental group demonstrated that the frequency content of the gastrocnemius medialis muscle during post-test was significantly lower than that during the pre-test (P=0.002). Also, two external oblique (P=0.007) and rectus abdominus (P<0.001) muscles showed a significant increase in their frequency content during post-test than that in the test pre-test.

Conclusion: Results demonstrated that using of lumbar brace can increase abdominal muscle activity in patients with low back pain and pronated feet.


How to cite this article: Jafarnezhadgero A A, Ghorbanlou F, Ghane Gh. [The effect of long-term use of lumbar brace on the electromyography frequency spectrum of trunk and lower limbs in low back pain older adults with pronated feet during walking]. Med J Tabriz Uni Med Sciences Health Services. 2020;42(4):394-401. Persian.
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Submitted: 20 Feb 2019
ePublished: 28 Oct 2020
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