Different from the ordinary apparatus and plug-in devices on bikes, this research brings up a novel system called SaFePlay+, Smart Footwear Platform Plus. The system includes a pair of knee motion sensing module and smart pressure and motion sensing insole, analyzed module and interactive App. SaFePlay+ can immediately collect lower limbs information of users. Moreover, through the novel algorithm of wearable power analyzer, it can help users to understand their body condition in order to adjust the posture, raise the efficiency and avoid sports injury. Through the verification of the apparatus, it shows that our method can get good cadence and power performance.

Office workers usually have problems of back and neck pain because of their bad posture which they always keep. In order to solve the problems, we design a smart suit, Heath Posture Protector (HP2), and 4 serious games for rehabilitation. Besides, we use machine learning to train the motion model and apply the model in playing the serious games. We expect the user who wears the smart suit HP2 can easily play the serious games, and furthermore, they can stretch the muscles of upper body by the guidance in games to reduce or even prevent the problems of upper-body pains.