Volume 4, Issue 1 (Spring 2014)                   PTJ 2014, 4(1): 33-38 | Back to browse issues page

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Mohammadi P, Akbari M, Sarafzadeh J. Comparison of Respiratory Muscle Electromyography between Adolescent Idiopathic Scoliosis and Healthy Subjects. PTJ 2014; 4 (1) :33-38
URL: http://ptj.uswr.ac.ir/article-1-115-en.html
1- Iran University of Medical Sciences
Abstract:   (4357 Views)
Purpose: Scoliosis is one of the most common spinal deformities that affect chest wall mechanics. Scoliosis results in ventilator disorders and respiratory muscle weakness. However, the mechanism of these disorders is still unknown. The main objective of this study was to identify the intensity of respiratory muscles activity in patients with idiopathic scoliosis compare with healthy individuals and determine the relationship between scoliosis degree and respiratory dysfunctions. In this study, 20 female patients with adult idiopathic scoliosis (mild, moderate) as well as 10 healthy matched individuals with characteristics of the patients were selected. 
Methods: Electromyography values were recorded through rest phase. In addition, the electromyography values of external intercostal muscles and diaphragm were recorded bilaterally. 
Results: The RMS of concave and convex external intercostal muscles and concave diaphragm in patients with idiopathic scoliosis were reduced significantly relative to healthy individuals in rest (P<0.001, P<0.001, P=0.023). .There was a correlation between scoliosis degree and decrease in concave and convex intercostal muscle performances (P=0.001) but there was no correlation in diaphragm muscle. 
Conclusion: Respiratory muscle performance is drastically decreased in patients with adult idiopathic scoliosis. There was a relationship between scoliosis degree and respiratory dysfunction. This reduction has more observed in concave side and resulted in reduced physical capacity.
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Type of Study: Applicable | Subject: Special
Received: 2013/12/15 | Accepted: 2014/02/23 | Published: 2014/04/1

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