RT journal article T1 European fitness landscape for children and adolescents: updated reference values, fitness maps and country rankings based on nearly 8 million test results from 34 countries gathered by the FitBack network A1 Ortega, Francisco B. A1 Leskošek, Bojan A1 Blagus, Rok A1 Gil Cosano, José J. A1 Mäestu, Jarek A1 Tomkinson, Grant R. A1 Ruiz, Jonatan R. A1 Mäestu, Evelin A1 Starc, Gregor A1 Milanovic, Ivana A1 Tammelin, Tuija H. A1 Sorić, Maroje A1 Scheuer, Claude A1 Carraro, Attilio A1 Kaj, Mónika A1 Csányi, Tamás A1 Sardinha, Luis B. A1 Lenoir, Matthieu A1 Emeljanovas, Arunas A1 Mieziene, Brigita A1 Sidossis, Labros S. A1 Pihu, Maret A1 Lovecchio, Nicola A1 Konstabel, Kenn A1 Tambalis, Konstantinos D. A1 Štefan, Lovro A1 Drenowatz, Clemens A1 Rubín, Lukáš A1 Gontarev, Seryozha A1 Castro Piñero, José A1 Vanhelst, Jeremy A1 O'Keeffe, Brendan A1 Veiga, Oscar L. A1 Gisladottir, Thordis A1 Sandercock, Gavin A1 Misigoj Durakovic, Marjeta A1 Niessner, Claudia A1 Riso, Eva Maria A1 Popovic, Stevo A1 Kuu, Saima A1 Chinapaw, Mai A1 Clavel, Iván A1 Labayen, Idoia A1 Dobosz, Janusz A1 Colella, Dario A1 Kriemler, Susi A1 Salaj, Sanja A1 Noriega, Maria Jose A1 Bös, Klaus A1 Sánchez López, Mairena A1 Lakka, Timo A. A1 Tabacchi, Garden A1 Novak, Dario A1 Ahrens, Wolfgang A1 Wedderkopp, Niels A1 Jurak, Gregor A2 Didáctica de la Educación FísicaPlástica y Musical K1 physical endurance K1 physical fitness K1 Body Mass Index K1 Adolescent K1 Child AB Objectives (1) To develop reference values for health-related fitness in European children and adolescents aged 6-18 years that are the foundation for the web-based, open-access and multilanguage fitness platform (FitBack); (2) to provide comparisons across European countries. Methods This study builds on a previous large fitness reference study in European youth by (1) widening the age demographic, (2) identifying the most recent and representative country-level data and (3) including national data from existing fitness surveillance and monitoring systems. We used the Assessing Levels of PHysical Activity and fitness at population level (ALPHA) test battery as it comprises tests with the highest test-retest reliability, criterion/construct validity and health-related predictive validity: the 20 m shuttle run (cardiorespiratory fitness); handgrip strength and standing long jump (muscular strength); and body height, body mass, body mass index and waist circumference (anthropometry). Percentile values were obtained using the generalised additive models for location, scale and shape method. Results A total of 7 966 693 test results from 34 countries (106 datasets) were used to develop sex-specific and age-specific percentile values. In addition, country-level rankings based on mean percentiles are provided for each fitness test, as well as an overall fitness ranking. Finally, an interactive fitness platform, including individual and group reporting and European fitness maps, is provided and freely available online (www.fitbackeurope.eu). Conclusion This study discusses the major implications of fitness assessment in youth from health, educational and sport perspectives, and how the FitBack reference values and interactive web-based platform contribute to it. Fitness testing can be conducted in school and/or sport settings, and the interpreted results be integrated in the healthcare systems across Europe. PB BMJ SN 0306-3674 YR 2023 FD 2023-01-09 LK http://hdl.handle.net/10498/29719 UL http://hdl.handle.net/10498/29719 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 12-nov-2026