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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.

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


[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.


Balance; Postural control; Stabilometry

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