International normative 20 m shuttle run values from 1 142 026 children and youth representing 50 countries - Tomkinson, G. R.; Lang, J. J.; Tremblay, M. S.; Dale, M.; LeBlanc, A. G.; Belanger, K.; Ortega, F. B.; Léger, L. (British Journal of Sports Medicine, 2017)
Keywords: sports medicine; investigation method; test; male; female; child; physical conditioning ability; analysis; injury; statistics; Great Britain; biological and medical sciences; junior sports