title: Laddermill and ergometry: a comparative summary.
mesh_terms: D002151:Calorimetry; D006339:Heart Rate; D006801:Humans; D009119:Muscle Contraction; D009132:Muscles / Q000378:metabolism* / Q000502:physiology; D010101:Oxygen Consumption; D005082:Physical Exertion; D014692:Ventilation-Perfusion Ratio