TY - BOOK AU - Mohamed Wahid Kamal Hamed AU - Emadeldin Ezzat Salama , AU - Rania Aly Hegazy , AU - Shereen Abdelghaffar Taha , TI - Effect of obesity on heart rate variability in children / PY - 2013/// CY - Cairo : PB - Mohamed Wahid Kamal Hamed , KW - Analysis of HRV provides KW - Childhood obesity KW - Heart rate variability N1 - Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Pediatrics; Issued also as CD N2 - Analysis of HRV provides a non-invasive method for investigating the autonomic input to the heart it quantifies the amount by which the RR interval or heart rate changes from one cardiac cycle to the next . It is a reliable reflection of many physiological factors modulating the normal rhythm of the heart, including the interplay between the sympathetic and parasympathetic nervous systems ER -