In SMA, the TUG test is easily administered, reliable, and correlates with established outcome measures. TUG findings were not associated with knee extensor strength, pulmonary function, or fatigue. TUG was associated significantly with total leg and knee flexor strength, as well as the Hammersmith Functional Motor Scale Expanded, the 10-meter walk/run, and 6-minute walk tests. Test-retest reliability was excellent for all participants. Convergent validity was determined using Pearson correlation coefficients. Intraclass correlation coefficients quantified test-retest reliability.
Reliability and validity have not been tested in spinal muscular atrophy (SMA).įifteen ambulatory SMA participants performed TUG testing and strength, functional, and clinical assessments. TUG scores correlate with clinical, functional, and strength assessment and decline linearly over time. The timed "up & go" (TUG) test is a quick measure of balance and mobility.
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