Physical activity and perceived benefits, but not barriers, to exercise differ by sex and school year among college students.

To assess whether sex or school year influence physical activity and exercise (PA/EX) behaviors and perceived benefits and barriers of PA/EX among college students. Participants were 862 (78% female; 20.1 ± 1.4 years) college students. The International Physical Activity Questionnaire, Exercise Benefits and Barriers Scale, and resistance training (RT) questions were completed online. Factorial ANOVA (sex x year) determined no significant interaction effects of sex and school year in behaviors or perceived benefits and barriers (all  > .05). Males reported higher levels of PA/EX and RT than females ( < .05) with no differences by school year ( = .34). Benefits Scale scores and some of its subscales were higher for males and first-year students compared to females and third- and fourth-year students (all  < .05). PA/EX promotion programs may need to be tailored differently based on sex and school year.