This study introduces the design of a robotic system for upper-body training of individuals with lower-body orthopedic injuries undergoing rehabilitation. The system is an adaptation of ‘Gymmy’, a robotic system initially developed for physical and cognitive training of older adults. The paper outlines the prototype system designed based on a focus group and presents the results of an online video assessment by physical therapists, which further helped tailor ‘Gymmy’ to better suit physical therapy training. It discusses enhancements of the prototype system including performance feedback provision, methods to enhance training engagement, personalized training regimens, and data display features. These improvements aim to provide personalized rehabilitation experiences to improve engagement and performance.