Virtual Coach (IMAGE) Bielefeld University Caption A virtual coach, which is part of the new coaching system, instructs a user how to do a squat. Credit Photo: CITEC/Bielefeld University Usage Restrictions The image may only be used with appropriate caption or credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.