Abstract: An exercise device independent, variable display rate visual exercise system uses a sensor to sense repetitive movements or other physical functions of the user. A computing device-readable medium containing computing device executable instructions which, when run on a computing device, cause the computing device to receive a user-exercise signal related to a user-exercise level, determine a modified frame-display time for a visual-image stream in response to the user-exercise signal, and provide the modified frame-display time to a visual-image stream player. Determining the modified frame-display time may include instructions that determine a user-exercise level in response to the user-exercise signal, receive a camera-mount speed and a native frame-display time for a recorded visual-image stream, correlate the camera-mount speed and the user-exercise level, and modify the native frame-display time in response to the correlation to produce the modified frame-display time.