title: The oxygen uptake efficiency slope is reduced in older patients with heart failure and a normal ejection fraction.
authors.forename: Ross
authors.initials: R
authors.lastname: Arena
authors.forename: Peter
authors.initials: P
authors.lastname: Brubaker
authors.forename: Brian
authors.initials: B
authors.lastname: Moore
authors.forename: Dalane
authors.initials: D
authors.lastname: Kitzman
mesh_terms: D000368:Aged; D005080:Exercise Test; D005260:Female; D054143:Heart Failure, Systolic / Q000378:metabolism* / Q000503:physiopathology; D006801:Humans; D008297:Male; D010101:Oxygen Consumption / Q000502:physiology*; D013318:Stroke Volume / Q000502:physiology*; D016277:Ventricular Function, Left / Q000502:physiology*