Objective parameter definitions from iTUG and SPA tests.

A reference for calculation procedure is presented for each parameter.iTUG: instrumented Timed-up-and-goSPA: spontaneous physical activityS-St: sit-to-standSt-S: stand-to-sitROM: range of motion* St-S and St-S transition were defined based on the change of trunk tilt in the sagittal plane both in the iTUG and SPA assessments.†Turn transition was defined based on the change of trunk twisting angle in the iTUG assessment.‡ Gait speed was computed using information from the detected step time and the amplitude of acceleration during each gait cycle.Objective parameter definitions from iTUG and SPA tests.