[1. Di Fiori J.P., Benjamin H.J., Brenner J.S., et al. (2014). Overuse injuries and burnout in youth sports: a position statement from the American Medical Society for Sports Medicine, Br. J. Sports. Med., 48,287-288.]Search in Google Scholar
[2. Shona L. Halson. (2014). Monitoring Training Load to Understand Fatigue in Athletes, Sports. Med. 44 (Suppl 2), S139–S147.]Search in Google Scholar
[3. Dafoe W. (2007). Principles of Exercise Testing and Interpretation, The Canadian Journal of Cardiology, 23(4), 274.]Search in Google Scholar
[4. Anderson S.J., et. al. (2000). Intensive Training and Sports Specialization in Young Athletes, Pediatrics, Volume106 / ISSUE 1, 154.10.1542/peds.106.1.154]Search in Google Scholar
[5. Purcell L. K., & Canadian Paediatric Society, Paediatric Sports and Exercise Medicine Section. (2013). Sport nutrition for young athletes, Paediatrics & Child Health, 18(4), 200–202.10.1093/pch/18.4.200]Search in Google Scholar
[6. Holm P., Sattler A., Fregosi R. F. (2004). Endurance training of respiratory muscles improves cycling performance in fit young cyclists, BMC Physiology, 4-9.10.1186/1472-6793-4-9]Search in Google Scholar