title: The major limitation to exercise performance in COPD is inadequate energy supply to the respiratory and locomotor muscles vs. lower limb muscle dysfunction vs. dynamic hyperinflation. There is no magic bullet in COPD.
authors.affiliation: University of Saskatchewan.
authors.forename: Darcy D
authors.initials: DD
authors.lastname: Marciniuk
mesh_terms: D001993:Bronchodilator Agents / Q000494:pharmacology / Q000627:therapeutic use; D017079:Exercise Tolerance / Q000187:drug effects / Q000502:physiology*; D006371:Helium / Q000494:pharmacology; D006801:Humans; D018496:Hyperoxia / Q000503:physiopathology; D010100:Oxygen / Q000494:pharmacology; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy / Q000503:physiopathology*; D015656:Respiratory Mechanics / Q000187:drug effects / Q000502:physiology*
chemical_list: D001993:Bronchodilator Agents; D006371:Helium; C038949:heliox; D010100:Oxygen