Foley JRJ, et al. - This investigation was carried out to test the validity of a presumption that patients with ischaemic cardiomyopathy (ICM) and non-ischaemic cardiomyopathy (NICM) have different torsion and strain parameters, compared to healthy, age-matched controls. Findings demonstrated that heart failure (HF) patients versus controls had attenuated twist, torsion, and strain. Furthermore, patients with NICM vs. ICM had significantly lower torsion and twist, despite similar volumetric dimensions, circumferential and longitudinal strain parameters, and left ventricular ejection fraction (LVEF).