the authors investigated whether an altitude of 1,350 m would affect the rat cardiovascular system in the same way as genuine altitude hypoxia and the way it would take effect when combined with endurance training in the form of swimming it was found that 8 weeks spent at this altitude led to an increase in absolute and relative heart weight , to right ventricular hypertrophy , and to increased resistance of the myocardium to acute anoxia .
C0018787
heart
C0027061
myocardium