A method for controlling an exercise apparatus via a control interface of an exercise apparatus, including steps of controlling a touch screen to display an information field, and then monitoring the touch screen to detect whether a touch has occurred on the surface of the touch screen and whether the touch is located in an input zone which has a plurality of sensing areas in the information field. A user can use one of specific actions to move a first tag in the input zone from a first sensing area to a second sensing area. And one of the steps of the method relocates the first tag proximate to the second sensing area to have a portion of the first tag to point at the second sensing area. Then, the final step of the method operates the exercise apparatus from a first condition using a first value corresponding to the first sensing area to a second condition using a second value corresponding to the second sensing area.