Impact of a Supervised Twelve-Week Combined Physical Training Program in Heart Failure Patients: A Randomized Trial

Area of Science:

• Cardiology
• Exercise Physiology
• Rehabilitation Medicine

Background:

• Heart failure with reduced ejection fraction (HFrEF) significantly impacts patients' functional capacity and quality of life.
• Current management often includes physician-prescribed regular exercise, but its effectiveness compared to structured training is debated.

Purpose of the Study:

• To compare the effects of supervised combined physical training versus unsupervised physician-prescribed exercise on functional capacity and quality of life in HFrEF patients.
• To evaluate the impact of these interventions on left ventricular systolic function.

Main Methods:

• A longitudinal prospective study involving 28 HFrEF patients randomly assigned to a supervised trained group (n=17) or a nontrained group (n=11).
• Interventions lasted 12 weeks, with assessments including clinical evaluation, echocardiography, Cooper walk test, and Quality of Life questionnaire before and after.
• Statistical analysis included chi-square tests, two-way ANOVA, and Pearson correlation.

Main Results:

• No significant baseline differences were observed between the groups.
• The trained group showed significant improvements in functional capacity and ejection fraction compared to the nontrained group (p < 0.05).
• A significant time and group interaction indicated enhanced quality of life in the trained group.

Conclusions:

• Supervised combined physical training is superior to unsupervised regular exercise for improving exercise tolerance and quality of life in HFrEF patients.
• Supervised training also demonstrated a positive effect on left ventricular systolic function.