Fig. 4

VR Rehabilitation serious game Design Framework. a The overall structure of the VR rehabilitation serious game design framework. b Details the specific process of designing VR rehabilitation serious games. Clinical information, serving as a clinical representation, is positioned closer to the designer and rehabilitation therapist. “Interesting” represents the content directly experienced by players and is closest to them. “Function” signifies the mapping of the functions of rehabilitation to game function, acting as a bridge between the “clinical” and “interesting” aspects