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Revista argentina de reumatología
versión impresa ISSN 0327-4411versión On-line ISSN 2362-3675
Resumen
BARBALACO, Luciana et al. Validation of the Timed Up and Go Test as Predictor of Risk of Falls in Subjects with Rheumatoid Arthritis: Part II: Concurrent and Predictive Validity. Rev. argent. reumatolg. [online]. 2019, vol.30, n.4, pp.3-9. ISSN 0327-4411.
Background: Subjects with Rheumatoid Arthritis (RA) have a high risk of falling. The Timed Up and Go Test (TUG) is used to predict the risk of falls but it has not been validated in subjects with RA. Purpose: The primary objective was to establish the predictive validity and the concurrent validity of TUG at the preferred walking speed or fastest speed possible as a predictor of falls in subjects with RA. The secondary objective was to establish if the TUG has a higher predictive value evaluated at the preferred walking speed or fastest speed possible. Subjects and method: The subjects were admitted by consecutive non-probabilistic sampling. To establish the concurrent validity, the TUG was correlated with the Berg Balance Scale (BBS) and the 10-meter Walk Test (TM10m). Predictive validity was calculated using the operating characteristics curve for the receiver and the area under the curve. Results: 115 participants were evaluated for concurrent validity and 98 for predictive validity. The correlations between the usual speed TUG and fastest speed TUG with the BBS and the TM10m were strong (range from -0.65 to -0.78). The predictive capacity of the TUG was low at both normal speed and maximum safe speed. Conclusion: The TUG in its both versions presented a strong concurrent validity compared to the BBS and the TM10m. The TUG presented a low predictive validity both at normal speed and at maximum safe speed to predict the risk of falls in subjects with RA.
Palabras clave : Rheumatoid arthritis; Timed Up and Go Test; Risk of Falls; Validity.