title: The two-hour marathon: the importance of breathing economy.
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Olson
authors.forename: Bryan J
authors.initials: BJ
authors.lastname: Taylor
authors.forename: Bruce D
authors.initials: BD
authors.lastname: Johnson
mesh_terms: D000222:Adaptation, Physiological / Q000502:physiology; D006801:Humans; D009119:Muscle Contraction / Q000502:physiology*; D018482:Muscle, Skeletal / Q000502:physiology*; D010101:Oxygen Consumption / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*; D010809:Physical Fitness / Q000502:physiology; D015656:Respiratory Mechanics / Q000502:physiology*; D012420:Running / Q000502:physiology*; D013647:Task Performance and Analysis