title: Training trials in heart failure: time to exercise restraint?
authors.forename: David J
authors.initials: DJ
authors.lastname: Whellan
authors.forename: Christopher M
authors.initials: CM
authors.lastname: O'Connor
authors.forename: Ileana
authors.initials: I
authors.lastname: Pina
mesh_terms: D005081:Exercise Therapy; D006333:Heart Failure / Q000628:therapy*; D006801:Humans; D010101:Oxygen Consumption; D016138:Walking