Table 1. Overview of performed tasks.

Task name	Instruction	Movement Signals	Derived clinical Parameter	Number of Repetitions
Stand up and Sit down (SAS)	After audio signal, stand up and wait for second audio signal, then sit down.	Upper body deviation (movement of shoulder centre relative to spine base), hand range of motion in AP direction	Time needed for stand up and sit down [s], deflection range of upper body during transitions [m], range of motion of each hand in AP direction [m]	5
Short Comfortable speed walk (SCSW)	After audio signal, walk directly towards the sensor at comfortable speed.	Spatial body movement (spine base movement), upper body deviation (movement of shoulder centre relative to spine base), deviation of spine base	Mean speed [m/s], deflection range [°] and mean absolute angular sway velocity [°/s] of upper body sway in pitch and roll direction, left-right and up-down deviation [cm]	5
Short Maximum speed walk (SMSW)	After audio signal, walk directly towards the sensor at maximum speed.	see SCSW	see SCSW	5
Short Line walk (SLW)	After audio signal, walk on an imaginary line directly towards the sensor with heel touching the toes.	see SCSW	see SCSW	5
Stance with closed feet and open and closed eyes (POCO)	Stand with closed feet and open eyes for 20 sec. After audio signal, close eyes for another 20 sec.	Body sway (movement of spine base relative to closed feet position)	pitch, roll and 3D mean absolute angular sway speed [°/s], pitch, roll and 3D sway deflection range [°]	5
Walking on the spot (STEPO)	Walk on the spot at comfortable pace for 40 sec.	AP-V displacement of the knees	Step Frequency (Cadence), knee Range of Motion in AP-V plane[m]	3

Abbrev: AP—anterio-posterior; V—vertical