Using Schiller software for exercise rehabilitation, initial workload was determined to obtain the target heart rate. The software then modifies the workload to maintain the set heart rate. The patient is instructed to cycle at 55–65 rpm. After 12 training sessions, another CPET was performed to evaluate the effect of training on exercise capacity and determine VO2AT and HRR to allow determination of the workload during subsequent training sessions. After the second CPET,
patients underwent another 12 training sessions followed by a final CPET to evaluate exercise capacity after completion of the training. Patients exercised 3–5 times a week. All training sessions and CPETs were performed in the same air-conditioned room. A single training session consisted of a 60-s warm-up period, followed by a gradual increase in workload during a period of 60 s, the actual training for 30 min, and a 90-s cool-down period. After the session,
patients were observed and monitored for another 10 min. Upon completion of exercise rehabilitation, patients were given instructions regarding physical activity during daily life.They were also encouraged to participate in various forms of exercise (walking, jogging, swimming, dancing) to maintain the effects of rehabilitation.