Patients with chronic heart failure need a "safe and effective" exercise program that will improve their quality of life. For this study, we will determine if adult chronic heart failure patents assigned to an experimental exercise group of walking and Inspiratory Muscle Training (IMT) program will have an additional beneficial effects on respiratory muscle strength (PImax), cardiovascular endurance, quality of life, walking speed, heart rate variability, and physical activity level compared to subjects who are assigned to the home walking and "sham" Inspiratory Muscle Training (IMT) program.