Tolerance of the myocardium to loads at high mountain altitudes.
D000064:Acclimatization; D000531:Altitude; D000818:Animals; D006332:Cardiomegaly / Q000503:physiopathology; D006321:Heart / Q000502:physiology*; D000860:Hypoxia / Q000503:physiopathology; D008297:Male; D009200:Myocardial Contraction; D011652:Pulmonary Circulation; D051381:Rats; D013997:Time Factors; D014655:Vascular Resistance