If loss of balance
resulting in a fall (non-tested foot touching the ground)
occurred before ending test 3, the test was validated and the
center of gravidity sway was recorded as 12 deg/sec,
according to the Balance MasterH System manual recommendation.
Because the 12 deg/sec assumption in case of fall
is a recommendation of the manufacturer that may not
represent the actual center of gravity sway, the average
unilateral stance time was compared before and after training
when the fall occurred.