This category includes studies in sport and exercise psychology, exercise behavior, and mental health. Topics may include exercise motivation, sport participation, psychological resilience, exercise enjoyment, competitive anxiety, sport confidence, team cohesion, coach-athlete psychological interaction, youth sport participation behavior, physical activity and mental health, exercise intervention, and behavior change. Submissions may adopt survey-based, experimental, longitudinal, interview-based, psychometric, intervention, or mixed-methods approaches, with a focus on the relationships and mechanisms linking physical activity, sport participation, and psychological development.