Planetary health in physical activity policy documents: A qualitative analysis of national guidelines and strategy documents from Germany, Austria and Switzerland Planetare Gesundheit in der Bewegungspolitik: Eine qualitative Analyse nationaler Leitlinien und Strategiedokumente aus Deutschland, Österreich und der Schweiz (2026) Moriz M, Abu-Omar K, Siefken K Journal article Perceptions, barriers, and facilitators of outdoor physical activity among Muslim women living in Germany Wahrnehmungen, Barrieren und förderliche Faktoren körperlicher Aktivität im Freien bei muslimischen Frauen in Deutschland (2026) Sweidan F, Sommer R, Abu-Omar K, Sand M, Ziemainz H Journal article The importance of ethical approval in sports science research (2025) Wollesen B, Gröben B, Mechling H, Reimers AK Journal article Commentary on the utilizing of goalkeepers in small-sided-games in soccer (2025) Rumpf M, Lochmann M Journal article Recent developments in the German Journal of Exercise and Sport Research: Steps to enhance process and manuscript quality (2024) Reimers AK, Wollesen B Journal article Must we tell people to be less active? The dilemma of physical activity recommendations from a holistic health perspective (2024) Gelius P, Till M, Messing S, Tcymbal A, Abu-Omar K Journal article Active mobility—(also) a topic for sport science? (2024) Reimers AK, Demetriou Y Journal article Germany’s 2022 Report Card on Physical Activity for Children and Adolescents (2024) Demetriou Y, Beck F, Sturm DJ, Abu-Omar K, Forberger S, Hebestreit A, Hohmann A, et al. Journal article, Review article Toward a representative assessment of competencies for a healthy, physically active lifestyle in the German population: development and validation of a short version of the physical activity-related health competence questionnaire (PAHCO_12) (2024) Carl J, Domanska OM, Buchmann M, Jordan S, Pfeifer K, Sudeck G Journal article The role of parental environmental self-identity in active travel behavior within parent–adolescent dyads (2023) Seemüller S, Beck F, Tristram C, Marzi I, Renninger D, Demetriou Y, Reimers AK Journal article