Article

OBJECTIVE: To investigate the measurement properties of the Timed Up and Go
Assessment of Biomechanical Strategies (TUG-ABS) to determine its adequacy for
use with individuals with Parkinson's disease. SUBJECTS: Fifty individuals with
Parkinson's disease. DESIGN: Diagnostic accuracy. METHODS: The study investigated
the following properties: reliability (inter-examiner, intra-examiner,
test-retest, internal consistency and minimal detectable change), construct
validity, and floor and ceiling effect. RESULTS: Considering the total score, the
inter-examiner, test-retest and intra-examiner reliabilities were classified as
excellent (0.95 </= intra-class correlation coefficient (ICC)</=0.99). The
TUG-ABS presented excellent internal consistency (alpha = 0.98). The minimal
detectable change was 3.82 points. The construct validity between the TUG-ABS and
the Unified Parkinson's Disease Rating Scale (UPDRS) - part III was classified as
moderate (rho = -0.62). Significant, elevated and positive correlations were
obtained between TUG-ABS and the Balance Evaluation System Test (BESTest)-VI (rho
= 0.72) and negative correlations between TUG-ABS and TUG (rho = -0.78). The
discriminant function obtained with the total score of TUG-ABS classified 60% of
the individuals correctly with respect to the group (determined by the
performance in TUG) to which they belonged. One-way analysis of variance (ANOVA)
showed that TUG-ABS discriminated the individuals with Parkinson's disease in all
stages according to Hoehn & Yahr. There was a ceiling effect of 22%. CONCLUSION:
TUG-ABS presented adequate measurement properties in individuals with Parkinson's
disease.

Langue : ANGLAIS