Validity of the Persian Version of Dynamic Gait Index (DGI-P) in Individuals with Multiple Sclerosis

Document Type : Original article

Authors

1 Physiotherapy Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran

2 Faculty Department of Occupational Therapy, Shahid Beheshti University of Medical Sciences, Tehran, Iran

3 Students research office, School of Rehabilitation ,Shahid Beheshti University of Medical Sciences, Tehran, Iran.

4 Faculty of Occupational Therapy Department, Iran University of Medical Sciences, Tehran, Iran

5 Department of Basic Sciences, Faculty of Rehabilitation Sciences,shahid Beheshti University of Medical Sciences

6 Neurologist, Imam Hossein hospital, Shahid Beheshti University of Medical Sciences

7 Master of Occupational Therapy, Sahid Beheshti University of Medical Sciences

Abstract

Background and Aim: Assessment of walking ability and fall risk in people with multiple sclerosis is often performed in rehabilitation. DGI is one of the tools that evaluate walking during various tasks. The aim of the present study was to evaluate the validity of the Persian version of DGI in people with multiple sclerosis.
Materials and Methods: The current study was performed using methodology method, and 62 patients were selected based on non-probable sampling. To check criterion validity, the correlation between the Berg Balance Scale scores and dynamic gait index scores were calculated and construct validity was evaluated using factor analysis. Also, content validity was assessed by 10 rehabilitation specialists with experience in the field of research and clinical work and in quantitative way.
Results: The results showed that the Persian version of dynamic gait index in people with MS has an acceptable criterion validity with the Berg Balance Scale (r=0/859). Content validity ratios for each item were between 0/80 and 1/00 and content validity index were 0/91, which were in the acceptable range. According to factor analysis, the test is composed of one factor with the eigenvalue of 4.4, which predicted 55% of the variance.
Conclusion: The Persian version of dynamic gait index is a valid measure to assess the dynamic balance while walking in patients with multiple sclerosis.

Keywords

Main Subjects


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Volume 6, Issue 2
July and August 2017
Pages 11-18
  • Receive Date: 13 February 2016
  • Revise Date: 26 April 2016
  • Accept Date: 21 May 2016
  • First Publish Date: 22 June 2017