摘要：The present study aimed at investigating the influence of home, neighbourhood and
school environmental factors on adolescents' engagement in self-reported extracurricular
physical activity and leisure time sports and on MVPA objectively measured by
accelerometers. Environmental factors were assessed using questionnaires. Gender specific
hierarchical regression analyses were conducted, with demographic variables entered in the
first block, and environmental, psychosocial factors and interactions terms entered in the
second block. Participation in extracurricular activities at school was positively related to the
number of organized activities and the provision of supervision. Perceived accessibility of
neighborhood facilities was not related to engagement in leisure time sports, whereas the
availability of sedentary and physical activity equipment was. Findings were generally
supportive of ecological theories stating that behaviors are influenced by personal and
environmental factors that are constantly interacting.
