Motivation for physical activity in the Jordanian military: Possible determinants of physical activity in male and female recruits.

Given the obligatory nature of physical fitness training in the military and in order to guide intervention development, our study assessed possible motivational determinants as suggested by self-determination theory in addition to other possible determinants. A cross-sectional study was conducted among 218 military recruits during their basic training in Jordan. Physical activity and lifestyle behaviors were measured using the Arab Teens Lifestyle Study (ATLS). Psychosocial variables were assessed using the Exercise Self-Efficacy Scale (ESE), Behavioral Regulation Exercise Scale (BREQ-2) and Exercise Benefits/Barriers Scale (EBBS). Bivariate correlation analysis revealed that identified self-regulation, introjected regulation and exercise self-efficacy scores were positively associated with higher Metabolic Equivalent of Task (METs) and minutes per week of physical activity among male recruits and the overall sample respectively. Among females, only external regulation was positively associated with the total METs/week. Being a male was significantly associated with higher minutes of physical activity among the overall sample. Multivariate regression analyses showed that identified regulation was significantly and positively associated with higher minutes of physical activity among the overall sample and male recruits in addition to higher METs per week among the male recruits. Also, the amotivation score was significantly and positively associated with higher minutes of physical activity among the overall sample and male recruits. A multivariate regression analysis for female recruits showed no significant associations. Intervention developers are advised to increase autonomous forms of motivation through structured enjoyable physical fitness programs in order to enhance intrinsic motivation in the long term.