Objective: The authors examined relationships among social physique anxiety, obligation to exercise, and exercise choices. Participants and Methods: College students (N = 337; 200 women, 137 men) volunteered to complete 3 questionnaires: the Social Physique Anxiety Scale (SPAS), Obligatory Exercise Questionnaire (OEQ), and Physical Activity Specification Survey (PASS). Results: On the SPAS, men (M score = 31.9 [plus or minus] 8.8) differed from women (M score = 37.3 [plus or minus] 8.3; p = 0.001). Men (M score = 43.0 [plus or minus] 9.9) and women (M score = 43.0 [plus or minus] 9.6) responded similarly (p = 0.94) on the OEQ. There was no interaction between sex and exercise level on the SPAS or OEQ. When separated by low, medium, and high SPAS scores, neither OEQ nor exercise scores differed. Conclusions: Obligation to exercise appears to be similar for both sexes. Women, however, appear to have higher levels of anxiety regarding how others evaluate their physique than do men. The combination of level of activity and sex do not appear to be associated with social physique anxiety or obligation to exercise. (Contains 2 tables and 2 figures.)