Original Research Published on 08 Mar 2021 Modeling and Simulation of a Human Knee Exoskeleton's Assistive Strategies and Interaction Longbin ZhangYixing LiuRuoli WangChristian SmithElena M. Gutierrez-Farewik Frontiers in Neurorobotics doi 10.3389/fnbot.2021.620928 17,681 views 26 citations