ABSTRACT

Exercise can increase functional capacity and reduce clinical symptoms in coronary heart patients. Exercise can improve the useful ability of the lungs as well as an increase in cardiac compensation which can be seen through maximum VO₂. Researchers have not yet found the effectiveness of phase I cardiac exercise against an increase in maximal VO₂, which is one indicator of an increase in cardiac compensation in patients with acute myocardial infarction. The purpose of this study was to determine the effectiveness of the cardiac exercise phase against maximal VO₂ increase in post-acute myocardial infarction patients. This study will find methods for performing active phase 1 cardiac exercise for patients after myocardial infarction. This research is a quantitative study using a quasi-experimental design with a post-test control group design approach. This study carried out the maximum VO₂ measurement in the treatment and control groups. The test is done by measuring the maximum VO₂ using the Harvard step test measuring instrument, involving two groups: the control group and the intervention group with 32 samples. The results obtained are significant differences in maximum VO₂ in the treatment group, with a p-value of 0,000. By giving heart training to patients after a heart attack, especially in patients with the acute coronary syndrome can improve the quality of life of patients.