Abstract: A method of performing sensor placement error detection and correction for a system for tracking human motion includes at least one sensor unit, and at least one sensor holder. The method includes at least the following steps: analyzing, whether there is at least one unmet condition, indicating an incorrect sensor unit placement; in case of detecting such at least one unmet condition preparing a list of potential reasons for the incorrect sensor unit placement; removing the possible reasons for incorrect sensor unit placement already presented to the user, and selecting the one of the reasons and presenting it to a user. Furthermore, this relates to a system for tracking human motion.