Explain Metabolic Requierments For Types Of Exercise ?

A relative scale of energy requirements related to heart function necessary for performing various daily activities has been used to describe the functional status of cardiac patients. A MET is an energy unit defined as the use of 3.5 mL of oxygen per minute per kilogram of body weight. For example, approximately 3 METs are required for walking, sitting, or other ordinary activities necessary for an individual to be self-sufficient. Patients with a functional capacity of 7-9 METs have the capability of undertaking vigorous activities such as sawing wood, mountain climbing, and heavy calisthenics and of resuming their normal pre-cardiac-event activities. Generally, any cardiac patient minimally attains the ability to exercise to 3 without ardiac symptoms before leaving the hospital. Most patients entering the Phase II cardiac rehabilitation program have the ability to carry out activities requiring more METs.