The aim of this study is to carry out an empirical study of constraint factors in recreational sporting activities. More specifically it tests the model of constraints (intra-personal, interpersonal, and structural), as proposed by Crawford et al. (1991), and its relationship with actual participation levels in specific recreational sports activities in Iran. Although there is a growing body of study in the USA, Canada, and United Kingdom into gender differences in leisure opportunities and behavior, Little is known about leisure activities in Iran. The maim purpose of this study is about the factors prohibiting female student at Khorasgan Azad Islamic University to participate in recreation sporting activities. This paper presents the findings of an exploratory investigation into factors influencing the recreational sporting activities. The data was collected by means of a self-administered questionnaire among three hundreds (300) female students who were participated in recreational sporting activities (102 individuals once or more per week, 129 individuals once or more per month, and 69 individuals once per year or more). Leisure constraints factors used in this study named as lack of time, lack of money, lack of facilities, transportation, social relations, lack of interest, unawareness, lack of skill and ability, and health and fitness problems. The findings showed that significant differences was found among constraint factors such as lack of time, lack of money, transportation, lack of interest, unawareness, lack of skill and ability, and health and fitness problems. These findings have theoretical and practical implications, which are discussed.