Reliability and Validity of the Timed Up and Go Test With a Motor Task in People With Chronic Stroke

Design Cross-sectional study. Setting University-based rehabilitation center. Participants A sample (N=65) of chronic stroke survivors (n=33) and healthy older adults (n=32). Interventions Not applicable. Main Outcome Measures TUGmotortimes and number of steps taken; Fugl-Meyer Assessment for the Lower Extremities score; handheld dynamometer measurements of hip abductor, knee flexor and extensor, and ankle dorsiflexor and plantar flexor muscle strength; 5-times sit-to-stand test time, Berg Balance Scale score; conventional timed Up and Go test time, and Activities-specific Balance Confidence scale and Community Integration Measure questionnaire scores. Results The TUGmotorcompletion times and number of steps demonstrated excellent intra-rater, interrater, and test-retest reliabilities. The TUGmotortimes correlated significantly with the Fugl-Meyer Assessment for the Lower Extremities and Berg Balance Scale scores, with hip abductor, knee flexor, ankle dorsiflexor and plantar flexor strength on the paretic side, with 5-times sit-to-stand test times, and with times on the conventional timed Up and Go test. The minimum detectable change in TUGmotortime was 3.53 seconds in stroke survivors. A TUGmotorcutoff time of 13.49 seconds was found to best discriminate the performance of stroke survivors from that of older adults without stroke. Conclusions The TUGmotoris a reliable, valid, and easy-to-administer clinical tool for assessing advanced functional mobility after a stroke.