Starting regular exercise is easy, but it is difficult to maintain. In fact, it is suggested that about 50% of those who start a regular exercise program will drop out within the first six months. The purpose of this study was to examine the exercise instructions which enhance an exerciser's motivation by using a focus group interview. Participants of this focus group interview were regular exercisers who had been maintaining regular exercise for more thanone year. The focus group session was tape-recorded and the tapes were transcribed. The transcripts were summarized in order to identify major categories. The results from this study provided positive feedback regarding perceived competence, the exercise environment in which autonomy is urged, and relatedness of construction of fitness facilities which were important exercise instructions which enhance an exerciser's motivation. Finally, exercise instructions which enhance an exerciser's motivation were considered based on Self-determination theory (Deci and Ryan, 2000).