Semi-experimental study reveals improvements in hemodynamic and biomechanical variables in cardiac patients, suggesting exercise benefits heart health.
Background and Aims Considering the impact of regular exercise on heart performance, this study aimed to investigate the effect of an aerobic exercise program on selected hematologic, hemodynamic, and biomechanical variables in middle-aged men with heart conditions. Methods In this semi-experimental study, 34 male patients aged 40-65 years who had suffered from myocardial infarction or had coronary artery bypass grafting and percutaneous coronary intervention, participated. They were randomly divided into equal exercise and control groups. The exercise group underwent submaximal aerobic exercises (workout on a stationary bike with foot pedals, workout on a stationary bike with hand pedals, and workout on a treadmill or an elliptical) three times a week for eight weeks. Inferential statistics such as analysis of covariance (ANCOVA), paired t-test, and Wilcoxon test were used for between-group and within-group comparisons. Results The results showed a significant improvement in hematologic variables (white blood cell count, erythrocyte sedimentation rate, hematocrit, and lipoproteins), hemodynamic variables (stroke volume, resting heart rate, and diastolic blood pressure), and biomechanical variables (ejection fraction, and size and volume of heart cavities) after aerobic exercises. Conclusion The aerobic exercise program can be used in male cardiac patients to improve the hematologic and hemodynamic blood parameters and the biomechanical heart function variables reported in this study.
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Yavar et al. (2025) studied this question.
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