“…Electrocardiogram features, and specifically its QRS complex, are affected not only by microstructural and physiological factors such as fiber orientation, Purkinje, myocardial conduction pathways and ionic currents (Boineau and Spach, 1968), but also by anatomical characteristics such as heart size and orientation, ventricular wall thickness, and body mass index (Hoekema et al, 1999, 2001; van Oosterom et al, 2000; Corlan et al, 2005). Quantitative information on the latter is, however, scarce.…”