To provide an exercise supporting apparatus, a computer program, and an exercise supporting method which are capable of securely supporting the exercise even if a user gets exercise in such a posture or state that the user can not visually recognize a display part.

A sample image 60 is displayed in a first display part 121a or second display part 121b, and by making the sample image 60 perform the exercise motion, the exercise of the user 50 is supported. When the sample image 60 turns to the left or right or to the rear or the like the user 50 also turns to the left or right or to the rear so that the user can not visually recognize the first display part 121a or second display part 121b either. Accordingly, the line of sight of the sample image 60 is acquired, and when the vision is out of a prescribed range, auxiliary sound is output from a speaker 123 to support the exercise of the user 50.