Comment on point: counterpoint "in health and in a normoxic environment, VO2 max is/is not limited primarily by cardiac output and locomotor muscle blood flow". Vol 100: 744-8, 2006. A small decrease in the arterial oxygen tension (PaO2) is of little consequence for arterial hemoglobin O2 saturation (SaO2).
Nielsen
Henning Bay
HB
D001692:Biological Transport; D002302:Cardiac Output; D015444:Exercise; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008124:Locomotion / Q000502:physiology*; D018482:Muscle, Skeletal / Q000098:blood supply* / Q000502:physiology; D010100:Oxygen / Q000097:blood / Q000378:metabolism; D010101:Oxygen Consumption; D012039:Regional Blood Flow
D006454:Hemoglobins; D010100:Oxygen