AUTHOR=Malzahn Jörn , Kashiri Navvab , Daley Monica A. , Tsagarakis Nikos TITLE=Editorial: Advances in Mechatronics and Biomechanics Towards Efficient Robot Actuation JOURNAL=Frontiers in Robotics and AI VOLUME=6 YEAR=2019 URL=https://www.frontiersin.org/journals/robotics-and-ai/articles/10.3389/frobt.2019.00019 DOI=10.3389/frobt.2019.00019 ISSN=2296-9144