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Five times sit-to-stand test in subjects with total knee replacement : Reliability and relationship with functional mobility tests

The objective was to determine the inter-observer and test/retest reliability of
the "Five-repetition sit-to-stand" (5STS) test in patients with total knee
replacement (TKR). To explore correlation between 5STS and two mobility tests. A
reliability study was conducted among 24 (mean age 72.13, S.D. 10.67; 50% were
women) outpatients with TKR. They were recruited from a traumatology unit of a
public hospital via convenience sampling. A physiotherapist and trauma physician
assessed each patient at the same time. The same physiotherapist realized a 5STS
second measurement 45-60min after the first one. Reliability was assessed with
intraclass correlation coefficients (ICCs) and Bland-Altman plots. Pearson
coefficient was calculated to assess the correlation between 5STS, time up to go
test (TUG) and four meters gait speed (4MGS). ICC for inter-observer and
test-retest reliability of the 5STS were 0.998 (95% confidence interval [CI],
0.995-0.999) and 0.982 (95% CI, 0.959-0.992). Bland-Altman plot inter-observer
showed limits between -0.82 and 1.06 with a mean of 0.11 and no
heteroscedasticity within the data. Bland-Altman plot for test-retest showed the
limits between 1.76 and 4.16, a mean of 1.20 and heteroscedasticity within the
data. Pearson correlation coefficient revealed significant correlation between
5STS and TUG (r=0.7, p<0.001) and 4MGS (r=-0.583, p=0.003). This study
demonstrates excellent inter-observer and test-retest reliability when it is used
in people with TKR, and also significant correlation with other functional
mobility tests. These findings support the use of 5STS as outcome measure in TKR
population.
CI - Copyright (c) 2017 Elsevier B.V. All rights reserved.

Langue : ANGLAIS

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