Impact of aerobic exercise during rehabilitation on left ventricular structure and function and exercise tolerance in patients with chronic heart failure

Left ventricular hypertrophy is associated with an increased risk of ventricular dysfunction, heart failure, arrhythmia, and sudden cardiac death. In this study, 150 patients with chronic heart failure (CHF) were divided into three rehabilitation groups: Group 1 (50 patients, 33.3%) received only standard pharmacotherapy; Group 2 (54 patients, 36%) received pharmacotherapy plus a standard set of aerobic exercises (morning exercise and daily 30-minute brisk walking at 60–70% of maximal heart rate); Group 3 (46 patients, 30.7%) received pharmacotherapy plus a set of exercises including mandatory 30-minute sessions on a MOTOMED cycle trainer (60–70% of max HR, with initial resistance levels tailored to patient capacity). After 6 months of rehabilitation, patients who performed 30-minute aerobic exercise on modern equipment (Motomed) showed significant improvement in external respiratory function, especially those in functional class III. Overall, rehabilitation of patients with cardiovascular disease complicated by CHF remains an important clinical challenge. Our findings indicate that adding structured aerobic exercise during rehabilitation improves exercise tolerance and quality of life in CHF patients, and reduces the risk of heart failure–related hospitalizations.

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