Early single sport specialization in a high-achieving US athlete population: Comparing National Collegiate Athletic Association student-athletes and undergraduate students - DiFiori, J. P.; Quitiquit, C.; Gray, A.; Kimlin, E. J.; Baker, R. (Journal of Athletic Training, 2019)
Keywords: specialisation; junior elite sport; sports for children and youths; sport in schools; college; youth; juniors; relative age effect; USA; junior sports