Bibliografia

1. ISTAT. La pratica sportiva in Italia. Roma: ISTAT, 2006; pp.1-22 ; 2007.
2. Istat, Indagine multiscopo sulle famiglie "Aspetti della vita quotidiana". Roma: ISTAT, 2013.
3. 2008 Physical Activity Guidelines for Americans. Office of Disease Prevention & Health Promotion, US Department of Health and Human Services, 2008.
4. World Health Organization. Global recommendations on physical activity for health. Geneve: World Health Organization, 2014
5. Gazzetta Ufficiale. D.M. n. 169 del 20 Luglio 2013: “Allegato C al DM 24.4.2013 – art. 1 e 3.
6. AA.VV. Fisiologia dell’uomo. Milano: Edi.Ermes, 2012; pp 278-282
7. Bronzetti G. L’ECG dell’età evolutiva. Normali e varianti, aritmie, cardiopatie congenite, atleti. Roma: Il Pensiero Scientifico Editore, 2014.
8. Davignon A, Rautaharju P, Boisselle E, et al. Normal ECG standards for infants and children. Pediatr Cardiol 1979; 1: 123-31.
9. Rijnbeek PR, Witsenburg M, Schrama E, Hess J, Kors JA. New normal limits for the pediatric electrocardiogram. Eur Heart J 2001; 22: 702-11.
10. Sun K, Li F, Dubin AM, et al. Normal ECG limits for asian infants and children. Computers in Cardiology. 2005; 32: 455-8.
11. Lue HC (ed). ECG in the child and adolescent. Normal standards and percentile charts. Massachussetts: Blackwell Publishing, 2006.
12. Bazzett HC. An analysis of the time-relations of electrocardiograms. Heart 1918; 7: 353-70.