Volume 20, Issue 114 (12-2013)                   RJMS 2013, 20(114): 49-58 | Back to browse issues page

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Mokhtarinia H R, Sanjari M A, Parnianpour M. The effect of external load on postural stability during quit standing in healthy and non-specific low back pain subjects. RJMS 2013; 20 (114) :49-58
URL: http://rjms.iums.ac.ir/article-1-2813-en.html
University of Social Welfare Rehabilitation Science
Abstract:   (6570 Views)

Background: The purpose of this study was to identify the effects of external loads on balance control during upright stance in Chronic Low Back Pain (CLBP) patients and healthy adults.


Methods: This study was a qausi-experimental design. External loads were applied to 23 young, healthy participants and 21 low back pain subjects, and effects on balance control were characterized by Center-of-Pressure (COP) based measures. Center COP data were used to calculate standard deviation of amplitude, standard deviation of velocity in anterior-posterior and medial-lateral directions, mean total velocity and phase plane parameters. We used two way ANOVA to explore the pre/post applying external load and the between groups difference.


Results: The results showed that applying external load had a significant main effect on the standard deviation of amplitude in anterior-posterior and medio-lateral direction and       parameters. There was no interaction of load and group in this study. Also there was no difference between two groups at the beginning of the test.


Conclusions: These data show that wearing 10 kg of external weight in a waistcoat increases the postural sway of subjects, which may in turn increase the likelihood of falls and injury.

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Type of Study: Research | Subject: Physiotherapy

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