Interventional Effects on Myocardial Revascularization Post-surgical Patients

Subjects will randomly placed into intervention group and control group . In addition to the physiotherapeutic program standardized by the hospital's team of physical therapists, the intervention group will perform physical exercise on a cycle ergometer with CPAP.

Physical exercise on a cycle ergometer combine with CPAP will be performed in a single daily session from the second to the fourth postoperative days . The maximum exercise time for postoperative day 2 will be 20 min, and 30 min for the third and fourth postoperative days.