ANNALS OF NONINVASIVE ELECTROCARDIOLOGY, vol.20, no.4, pp.378-385, 2015 (SCI-Expanded)
ObjectivesVitamin D (VitD) deficiency affects the cardiovascular system via endocrine, paracrine, and autocrine pathways. Limited data are available regarding cardiac autonomic dysfunction in VitD deficiency. The aim of this study was to assess the cardiac autonomic functions by using heart rate recovery index (HRRI) and heart rate variability (HRV) in apparently healthy subjects with VitD deficiency.