Fig. 2From: Sensor-based postural feedback is more effective than conventional feedback to improve lumbopelvic movement control in patients with chronic low back pain: a randomised controlled trialSensor-feedback with an avatar. a The green rectangle is kept on the upper body of the avatar, indicating that the lumbar curvature is maintained. b The green rectangle moves anteriorly to the avatar’s upper body, indicating a lumbar flexionBack to article page