Playback of backside appearance of an image capture subject at an appropriate playback speed that is in accordance with a predetermined playback time length is achieved by: outputting one recording start point and one recording end point within a period in which a turn motion of the image capture subject is detected; storing a video recording of the turn motion; calculating a recorded time length of at least one specific section of the video; determining a playback speed of the specific section in accordance with the playback time length; and playing back the specific section at the playback speed, whereby the specific section is played back over the playback time length regardless of the recorded time length of the specific section.