An Adaptive Pedaling Assistive Device for Knee Joint Rehabilitation

Abstract

The overwhelming majority of literature corroborates that dynamic loads have short- and long-term effects in managing knee osteoarthritis (KOA). There are, however, concerns regarding the contraindication of uncontrolled mechanical loading applied on the knee joint during exercises such as running; as a result, the most effective exercise for KOA rehabilitation has been debated for a long time. Accordingly, stationary bicycles have been used in research labs and rehabilitation centers as a tool to mechanically load the knee joints. The pedaling power in the available stationary bicycles is evenly distributed between both legs. In the present project, the Adaptive Pedalling Assistive Device (APAD) was developed, and its function was validated using human tests. The APAD is equipped with sensors to collect kinetics and kinematics parameters of pedaling, and electromechanical systems that automatically provides asymmetric pedalling power to one leg that (would) require treatment.