Brooks MA, Schiff MA, Koepsell TD, Rivara FP. Prevalence of preseason conditioning among high school athletes in two spring sports. Med Sci Sports Exerc. 2007 Feb;39(2):241-7.
Brooks MA, Schiff MA, Koepsell TD, Rivara FP. Prevalence of preseason conditioning among high school athletes in two spring sports. Med Sci Sports Exerc. 2007 Feb;39(2):241-7.