Fig. 2

The “Run training-program” tab during a training session. 1 – Start/Pause/Continue options of the training program (button); 2 – Emergency stop (button); 3 – Fixes the moving platform in zero position (on/off button). An option for relieving a trainee who is having difficulty during training; 4 – Current STB angle; 5 – Current Head–Neck angle (α2); 6 – Using calibration parameters or not (button). An option for ignoring inaccurate calibration data for relieving a trainee who is having difficulty during training; 7 – Current Shoulder angle (α1); 8 – Training timer; 9 – Overall connectivity check of all components: green represents that everything is connected properly; 10 – Calibration parameters; 11 – Shoulder angle (α1) as absorbed during the last balance reactive response in the last perturbation; 12 – STB angle as absorbed during the last balance reactive response in the last perturbation; 13 – Green mark for identifying an effective balance response in the last perturbation or red mark for an ineffective response; 14 – Ongoing customized training program (blue lines represent the past perturbation and write in the next one); 15 – Real-time trainee stick figure; 16 – Control and operation of the Microsoft Kinect™ system (on/off button); 17 – Trainee’s name, training program’s name, viewing the training history option