GRAIL is a dedicated solution for gait analysis and gait training. GRAIL uses an instrumented dual-belt treadmill, a motion-capture system and synchronized Virtual Reality (VR) environments next to 3 video cameras and EMG. GRAIL supports user friendly gait analysis and gait training in challenging conditions to improve (pathological) gait patterns. Real-time adjustments in GRAIL enable analysis and training during the same session.