Exercise level measurement system, shoes, and program

The purpose of the present invention is to evoke in a wearer a voluntary desire to exercise. This exercise level measurement system includes a pair of shoes and a communication terminal that displays information based on measured results of exercise performed using the shoes. At least one shoe of the pair measures the number of steps taken in the shoe on the basis of a sensor that detects exercise impacting the shoe and results of the detection of exercise by the sensor. The shoe stores exercise information including the number of steps measured during a given period such that the period can be identified, and transmits the stored exercise information to the communication terminal upon request. The communication terminal, which is configured so as to be able to exchange information with the shoe, displays information on the number of steps for each period on the basis of the received exercise information.