Heart rate responses and technical-tactical aspects of official 5-a-side youth soccer matches played on clay and artificial turf - Tessitore, A.; Perroni, F.; Meeusen, R.; Cortis, C.; Lupo, C.; Capranica, L. (The Journal of Strength and Conditioning Research, 2012)
Keywords: soccer; junior elite sport; training method; heart rate; technique; tactics; covering; USA; sport games; junior sports