A determination unit 41 determines stop time at which a user has stopped exercise. A measurement unit 42 measures the pulse of the user. A calculation unit 43 calculates the ratio of changes in pulse rate when the measurement unit measures the pulse of the user for a predetermined time period. An estimation unit 44 estimates the pulse rate at stoppage of exercise, based on the time elapsed from the stop time to the measurement of the pulse by the measurement unit 42, the measured pulse rate, and the ratio of changes.
