Test-retest reliability of the GAITRite walkway system for the spatio-temporal gait parameters while dual-tasking in post-stroke patients

摘要

Purpose: To examine the test-retest reliability of spatio-temporal gait parameters during performance of single-and dual-tasking in post-stroke patients. Method: This study was conducted using a single-group repeated-measures design, involving a baseline measurement session and a follow-up session two days later. Forty-three chronic stroke patients (>6 months) participated in this study. Spatio-temporal gait parameters under the single-and dual-task conditions at a self-selected comfortable gait speed were measured using the GAITRite walkway system. Intraclass correlation coefficients [ICC(2,1)] were calculated for determination of reliability between sessions. The level of agreement between the two sessions was determined using Bland-Altman 95% limits of the agreement plots. Results: In all gait parameters, a significant difference was observed between the single-and dual-task conditions (p<0.05). For the single condition, ICC (95% CI) was very good for all measures, ranging from 0.98 to 0.99 (0.97-0.99). In addition, for the dual-task condition, ICC (95% CI) was good to very good for all measures, ranging from 0.69 to 0.90 (0.49-0.99). Conclusions: The results of current study demonstrated that the test-retest reliability of the GAITRite system for measurement of spatio-temporal gait parameters under single-and dual-task conditions was good to very good. Therefore, we suggest that measurement of spatio-temporal gait parameters under a dual-task condition using the GAITRite system would be useful for clinical assessment in post-stroke patients.