This category includes studies on physical education, school sport, and youth sport. Topics may include physical education curriculum and teaching, school sport reform, after-school sport services, campus sport clubs, student physical fitness, youth sport participation, physical education teacher development, learning assessment in physical education, school sport competitions, and school sport governance. Submissions may adopt empirical, survey-based, case-based, comparative, policy-oriented, or practice-based approaches, with a focus on theoretical issues, practical problems, and improvement pathways in school sport and youth physical development.