The GAITRite® is a validated tool for measuring gait. However, no information is available regarding the number of trials required. This study investigates the within-assessment variability of the GAITRite® to establish the recommended number of trials.
People with stroke undergoing inpatient rehabilitation were assessed on the GAITRite®. Data of individuals admitted from January 2014 to January 2015 were extracted. Five trials were performed. A repeated measures analysis of variance (ANOVA) was used to investigate within-subject differences across the trials. Group means of each variable were plotted against trials. Significance was set at 0.05.
36 people with stroke (mean age = 59.6±13.3 years, 61.1% male) were assessed. Significant differences across trials were found for gait speed (p < 0.01), step length on the paretic (p < 0.01) and non-paretic sides (p < 0.01), stance phase time on the non-paretic side (p < 0.01), and single limb support time of the paretic side (p = 0.02). The differences were found between the first two trials and the other trials.
Depending on the gait variable of interest, the use of two warm-up trials and taking the average of two assessment trials could reduce the within-assessment variability of this instrument in people with stroke.
Department of Physiotherapy, Singapore General Hospital, Singapore 169608, Singapore
* Address: Department of Physiotherapy, Singapore General Hospital, Singapore 169608, Singapore. Tel.: +65 63214132; fax: +65 63213918. E-mail address: firstname.lastname@example.org
Author Disclosures: None. No funding was received.