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J Phys Ther Sci. 2017 Aug;29(8):1399-1404. doi: 10.1589/jpts.29.1399. Epub 2017 Aug 10.

Test-retest reliability of static postural control in people with multiple sclerosis.

Author information

1
School of Health Science, SALBIS Research Group, University of León, Spain.
2
School of Physical Education, Departament of Physical Education and Health, Federal University of Pelotas, Brazil.
3
Institute of Biomedicina (IBIOMED), University of León, Spain.

Abstract

[Purpose] The purpose of this study was to analyse the intraday test-retest reliability of stabilometric measurements on the Centre of Pressure (CoP) in persons with Multiple Sclerosis. [Subjects and Methods] The measurements were taken with the subject standing on the force platform with both feet together, in four different conditions: eyes open and closed whilst standing on both a rigid surface and then on foam. The measurements were taken on three occasions with intervals of 20 minutes between them. 18 persons with confirmed Multiple Sclerosis (MS), (aged 44.4 ± 13.3 years and 3.5 ± 1.5 EDSS) participated in the study. Relative reliability was measured using the intraclass correlation coefficient (ICC) and the 95% confidence interval (95% CI); and the absolute reliability using the coefficient of variation (CV) and standard error of measurement (SEM). [Results] The measurements of the CoP in all of the variables in each of the four conditions, showed a reliability of good to excellent (ICC=0.69-0.92) in the intraday test-retest. The variables which showed greatest consistency with repetition were X Speed, Y Speed and Side Length. [Conclusion] Given the results it would seem that the best variables for monitoring postural control in persons with MS are Speed on X and Y along with Side Length.

KEYWORDS:

Balance; Postural control; Stabilometry

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