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Multiple Sclerosis International
Volume 2012, Article ID 613925, 8 pages
http://dx.doi.org/10.1155/2012/613925
Research Article

Activities-Specific Balance Confidence in People with Multiple Sclerosis

1Centre for Health Care Sciences, Örebro County Council, P.O. Box 1324, 701 13 Örebro, Sweden
2School of Health and Medical Sciences, Örebro University, Sweden
3Department of Physiotherapy, Örebro University Hospital, 701 85 Örebro, Sweden
4Family Medicine Research Centre, Örebro County Council, P.O. Box 1613, 701 16 Örebro, Sweden

Received 30 March 2012; Revised 25 June 2012; Accepted 25 June 2012

Academic Editor: W. Bruck

Copyright © 2012 Ylva Nilsagård et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. To evaluate the validity of the Activities-specific Balance Confidence scale (ABC) in people with multiple sclerosis (PwMS). Design. A multicentre, cross-sectional study. Setting. Six rural and urban Swedish sites, including specialized units at hospitals and primary care centers. Participants. A sample of 84 PwMS with subjective gait and balance impairment but still able to walk 100 m (comparable with EDSS 1–6). Outcome Measures. Timed Up and Go, Timed Up and Gocog, 25-foot Timed Walk Test, Four Square Step Test, Dynamic Gait Index, Chair Stand Test, 12-item MS Walking Scale, self-reported falls, and use of assistive walking device were used for validation. Results. The concurrent convergent validity was moderate to good (0.50 to −0.75) with the highest correlation found for the 12-item MS Walking Scale. The ABC discriminated between multiple fallers and nonfallers but not between men and women. Ecological validity is suggested since ABC discriminated between users of assistive walking device and nonusers. The internal consistency was high at 𝛼 = 0 . 9 5 , and interitem correlations were between 0.30 and 0.83. Conclusion. This study supports the validity of the ABC for persons with mild-to-moderate MS. The participants lacked balance confidence in many everyday activities, likely restricting their participation in society.