Effects of short-term in-season break detraining on repeated-sprint ability and intermittent endurance according to initial performance of soccer player - Rodriguez-Fernández, A.; Sánchez-Sánchez, J.; Ramirez-Campillo, R.; Rodriguez-Marroyo, J. A.; Villa Vicente, J. G.; Nakamura, F. Y. (PLOS ONE, 2018)