Superior health-related physical fitness and well-being in 12–15-year-old Danish adolescents who are active in organized leisure-time sports – a cross-sectional study
PLOS One
journal-article
FIT FIRST teen – a cluster RCT evaluating the effects of a 10-week high-intensity exercise intervention for 12–15-yr-old school children
Journal of Sports Sciences
journal-article
Protocol for the FIT FIRST Teen effectiveness and implementation study – a cluster randomised mixed methods trial