Effects of training frequency on physical fitness in male prepubertal tennis players - Sanchis-Moysi, J.; Dorado, C.; Arteaga-Ortiz, R.; Serrano-Sanchez, J. A.; Calbet, J. A. L. (The Journal of Sports Medicine and Physical Fitness, 2011)
Keywords: male; youth; junior elite sport; tennis; load frequency; relation; performance capacity; Italy; sport games; junior sports