The components of the instrumented timed-up-and-go test may explain balance impairments, gait and weight-bearing asymmetries, and trunk muscle activation disorders

The peak-angular-velocity of the turn-to-sit component indicates balance impairment and trunk muscle disorders better than the iTUG duration or turning times. Slow turning movements may be linked to increased CoP sway, gait and weight-bearing asymmetries, and muscle activation issues in the LES during daily activities, which could raise the risk of low-back pain over time.