title: Social Physique Anxiety and Intention to Be Physically Active: A Self-Determination Theory Approach.
abstract: OBJECTIVE
  Based on self-determination theory, the purpose of this study was to analyze the relationship between social physique anxiety and intention to be physically active, while taking into account the mediating effects of the basic psychological needs and behavioral regulations in exercise.
  
  
  METHODS
  Having obtained parents' prior consent, 390 students in secondary school (218 boys, 172 girls; Mage= 15.10 years, SD = 1.94 years) completed a self-administered questionnaire during physical education class that assessed the target variables. Preliminary analyses included means, standard deviations, and bivariate correlations among the target variables. Next, a path analysis was performed using the maximum likelihood estimation method with the bootstrapping procedure in the statistical package AMOS 19.
  
  
  RESULTS
  Analysis revealed that social physique anxiety negatively predicted intention to be physically active through mediation of the basic psychological needs and the 3 autonomous forms of motivation (i.e., intrinsic motivation, integrated regulation, and identified regulation).
  
  
  CONCLUSIONS
  The results suggest that social physique anxiety is an internal source of controlling influence that hinders basic psychological need satisfaction and autonomous motivation in exercise, and interventions aimed at reducing social physique anxiety could promote future exercise.
authors.affiliation: a University of Almería.
authors.forename: Álvaro
authors.initials: Á
authors.lastname: Sicilia
authors.affiliation: a University of Almería.
authors.forename: Piedad
authors.initials: P
authors.lastname: Sáenz-Alvarez
authors.affiliation: b Miguel Hernández University.
authors.forename: David
authors.initials: D
authors.lastname: González-Cutre
authors.affiliation: c CEU Cardenal Herrera University.
authors.forename: Roberto
authors.initials: R
authors.lastname: Ferriz
mesh_terms: D000293:Adolescent; D001007:Anxiety; D001828:Body Image / Q000523:psychology*; D015444:Exercise / Q000523:psychology*; D005260:Female; D006801:Humans; D033182:Intention; D008297:Male; D026684:Personal Autonomy; D055815:Young Adult
keywords: Adolescents; body image; self-determined motivation; self-presentation