title: Study of man during a 56-day exposure to an oxygen-helium atmosphere at 258 mm. Hg total pressure. V. Exercise performance and cardiovascular response.
mesh_terms: D000222:Adaptation, Physiological; D000328:Adult; D001274:Atmospheric Pressure; D001811:Blood Volume Determination; D002302:Cardiac Output; D002320:Cardiovascular Physiological Phenomena; D018504:Ecological Systems, Closed; D005080:Exercise Test; D006334:Heart Function Tests; D006339:Heart Rate / Q000502:physiology; D006371:Helium; D006801:Humans; D008297:Male; D010100:Oxygen; D010101:Oxygen Consumption
chemical_list: D006371:Helium; D010100:Oxygen