Identification of distinct physical activity profiles through adolescence: a longitudinal qualitative description study.

Introduction: We aimed to better understand longitudinal physical activity experiences among initially active adolescents and to identify and describe distinct physical activity profiles.

Methods: A sample of 23 physically active participants [52% female; mean age = 12.2 (0.

Association Between School Policies and Built Environment, and Youth's Participation in Various Types of Physical Activities.

Background: School environmental characteristics may be associated with youth's participation in different types of physical activities (PAs). This study aimed to identify which school policies and built environmental characteristics were associated with participation in organized, nonorganized, individual, and group-based activities.

Methods: This cross-sectional analysis included 776 students in grade 5 or 6 from 16 schools.