Background: The aims of this study were to examine the relationships among physical activity (PA)-related beliefs and to determine to what extent Iranian adolescents in different stages of PA adoption differ in perceived benefits and barriers during a 3-year transition from junior high school to high school. Methods: Data were collected from…

We examined the relationship between implicit and explicit "exerciser" and "sedentary" self-identity when activated by stereotypes. Undergraduate participants (N = 141) wrote essays about university students who either liked to exercise or engage in sedentary activities. This was followed by an implicit identity task and an explicit measure of…

This research examined attentional bias toward exercise-related images using a visual probe task. It was hypothesized that more-active participants would display attentional bias toward the exercise-related images. The results showed that men displayed attentional bias for the exercise images. There was a significant interaction of activity level…

Objective: The purpose of this longitudinal study was to examine changes in physical activity behavior, psychological factors and interpersonal influences associated with exercise behavior during the transition from secondary school to high school in Sanandaj, Iran. Design: Data were collected from students in 2006 (N = 1,073), of whom 844…

Objectives: To investigate the effects of exercise advertising on self-efficacy and decisional balance for changing exercise behavior. Methods: One hundred seventy-four university students (females = 108; males = 66) watched a video that contained health, appearance, or control advertising and completed stage of change, exercise self-efficacy, and…