Aberg, N. D.,Brywe, K. G.,Isgaard, J.(2006).Aspects of growth hormone and insulin-like growth factor-I related to neuroprotection, regeneration, and functional plasticity in the adult brain.The Scientific World Journal.18(6),53-80.
California Department of Education. (2002). State study proves physically fit kids perform better academically. Retrieved April 27, 2006, from http://www.cde.ca.gov/nr/ne/ yr02/yr02rel37.asp
Caterino, M. C.,Polak, E. D.(1999).Effects of two types of activity on the performance of second-, third-, and fourth-grade students on a test of concentration.Perceptual and Motor Skills.89(1),245-248.
Colcombe, S. J.,Kramer, A. F.,Erickson, K. I.,Scalf, P.,McAuley, E.,Cohen, N. J.,Webb, A.,Jerome, G. J.,Marquez, D. X.,Elavsky, S.(2004).Cardiovascular fitness, cortical plasticity, and aging.Proceedings of the National Academy of Sciences of the United States of America.(Proceedings of the National Academy of Sciences of the United States of America).