title: Distinguishing capacity from power.
authors.forename: Roy J
authors.initials: RJ
authors.lastname: Shephard
mesh_terms: D015673:Fatigue Syndrome, Chronic / Q000150:complications*; D006801:Humans; D010101:Oxygen Consumption; D010807:Physical Endurance / Q000502:physiology*; D011788:Quality of Life; D015203:Reproducibility of Results