Cool downThe process involved a post-conditioning resting period of 10 min during which the patients were asked to sit on a chair and performed deep breathing exercises. During a cool down process, patient vitals; pulse rate, oxygen saturation, and blood pressures were monitored. The session of cool down continued until the patient pulse rate reaches to the resting pulse rate that was recorded before the start of the training.Exercise termination criteriaOn the occurrence of any one of the following events at any time during the session, the exercises were prematurely terminated:The training session was prematurely terminated on the request of the participants or when any one of the following conditions occurModified Borg dyspnea scale (RPP) at level 7 or above[50]Complain of chest painDecrease in oxygen saturation that is