Ask the doctors. Does the aging but otherwise healthy body have a diminished capability to deliver oxygen to muscles during strenuous activity? Is there a role for supplemental oxygen during times of vigorous exertion? I have heard of "exercise with oxygen therapy," but know nothing of this practice.
D000375:Aging / Q000502:physiology*; D003324:Coronary Artery Disease / Q000378:metabolism / Q000503:physiopathology; D015444:Exercise / Q000502:physiology*; D006801:Humans; D018482:Muscle, Skeletal / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism*; D010102:Oxygen Inhalation Therapy
D010100:Oxygen