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 (α = 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 (ρ = -0.62). Significant, elevated and positive correlations were obtained between TUG-ABS and the Balance Evaluation System Test (BESTest)-VI (ρ = 0.72) and negative correlations between TUG-ABS and TUG (ρ = -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.
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 (α = 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 (ρ = -0.62). Significant, elevated and positive correlations were obtained between TUG-ABS and the Balance Evaluation System Test (BESTest)-VI (ρ = 0.72) and negative correlations between TUG-ABS and TUG (ρ = -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.
Authors: Sara Mollà-Casanova; Jose Pedrero-Sánchez; Marta Inglés; Juan López-Pascual; Elena Muñoz-Gómez; Marta Aguilar-Rodríguez; Nuria Sempere-Rubio; Pilar Serra-Añó Journal: Front Aging Neurosci Date: 2022-06-15 Impact factor: 5.702
Authors: Claire McGee; Ann Liebert; Geoffrey Herkes; Brian Bicknell; Vincent Pang; Craig S McLachlan; Hosen Kiat Journal: Front Neurosci Date: 2022-08-17 Impact factor: 5.152