Cardiorespiratory responses to yo-yo intermittent endurance test in nonelite youth soccer players - Castagna, C.; Impellizzeri, F. M.; Belardinelli, R.; Abt, G.; Coutts, A.; Chamari, K.; D'Ottavio, S. (The Journal of Strength and Conditioning Research, 2006)
Keywords: soccer; youth; junior elite sport; heart; circulation; reaction; test; interval method; endurance; field test; aerobic; performance capacity; intermittent; USA; sport games; junior sports