Physiological status and prediction of cardiovascular fitness in highly trained youth soccer athletes - Williford, H. N.; Scharff-Olson, M.; Duey, W. J. (The Journal of Strength and Conditioning Research, 1999)
Keywords: soccer; youth; junior elite sport; sport physiology; parameter; heart; circulation; lactate; O2-uptake; test; USA; biological and medical sciences; sport games; junior sports