2.4.2. Aerobic Exercise Training Protocol
Following a warm-up, on nonconsecutive days, patients in this group achieved walking using a treadmill at a modest speed without inclination three times a week. The intensity of exercise was specified according to the Karvonen equation, while the target heart rate = [(max HR − resting HR) × % intensity] + resting HR, where max HR = 220-age. Patients began training with 60% of max HR and gradually progressed to achieve 75% of max HR by weeks 7 through 12 [