To make it possible to perform measurement with a simple configuration. A measurement device 1 that is used for clinical practice or its training in cardiopulmonary resuscitation includes a storage unit 11 for storing therein the size of an AR marker attached at a prescribed position of a user, an imaging unit 12 provided with a visible light camera for capturing an image of the AR marker moving during measurement, a control unit 13 for detecting the position of the AR marker in the captured image and calculating the amount of displacement of the AR marker using the size of the AR marker stored in the storage unit 11, and an output unit for outputting the calculation result obtained by the control unit 13.
