Experimental setup and procedure
The training and the data collection were performed with
the force plate analysis system ‘Stabilan-01’ (Rhythm,
Taganrog, Russia). The Biodex Unweighing System (Biodex,
Shirley, New York, USA) was used in combination with a
harness to prevent falls during standing. During the training,
participants stood on the force plate and were instructed to
look at the monitor, placed at eye level, approximately 1.5m
in front of the force plate. The center of pressure (COP)
position signal was used as an input to game-based exercises.
The training was performed 3 days per week for a total of
12 sessions. If a participant was not able to attend a
scheduled session, the participant was asked to come to a
replacement session. Each session lasted up to 60 min with a
total standing time of at least 30 min.