Comparison of physiological responses to an incremental running test on treadmill, natural grass, and synthetic turf in young soccer players - Di Michele, R.; Di Renzo, A.; Ammazzalorso, S.; Merni, F. (The Journal of Strength and Conditioning Research, 2009)
Keywords: soccer; junior elite sport; test; physical conditioning ability; covering; ergometry; sport physiology; heart rate; lactate; USA; sport games; junior sports; sports facilities and sports equipment