Prospective and retrosspective longitudinal studies of the growth, maturation and fitness of Polish youth active in sport - Malina, R. M.; Woynarowska, B.; Bielicki, T.; Beunen, G.; Eweld, D.; Geithner, C. A.; Huang, Y.; Rogers, D. M. (International Journal of Sports Medicine, 1997)
Keywords: ontogeny; longitudinal study; youth; Poland; physical development; puberty; aerobic; performance capacity; body indices; anthropometry; Germany; biological and medical sciences; junior sports