Development and tracking in fitness components: Leuven longitudinal study on lifestyle, fitness and health - Beunen, G.; Ostyn, M.; Simons, J.; Renson, R.; Claessens, A. L.; Vanden Eynde, B.; Lefevre, J.; Vanreusel, B.; Malina, R. M.; Van't Hof, M. A. (International Journal of Sports Medicine, 1997)
Keywords: longitudinal study; performance capacity; physical development; youth; adults; male; way of life; health; Belgium; Germany; biological and medical sciences; junior sports