2. Compare Sensoro trunk sway measures with those of SwayStar for a battery of 17 stance and gait tasks. The tasks to range from tasks with small velocities (standing on 2 legs eyes open, ca 0.1 deg/s or eyes closed on foam ca.10 deg/s) through tandem and gait tasks with velocities of ca 70 deg/s to the most dynamic with high velocities (rising from a chair, ca 150 deg/sec).