Question

3)What grade do you use for someone walking at 3.0 mph and needing to work at 7.2 METS?

4)A 220 lb male is working at 150 watts on the leg ergometer. What is his oxygen consumption? What MET level is he working at?

5)The same male has a cycle stress test after 2 months of exercising and now has a functional capacity of 10 METS. Readjust his exercise prescription on the leg ergometer so he is working at 70% of his capacity in Watts.

Answer 1

3,Activities in the 5-8 METS range are considered to be off moderate intensity,and for most sedendary person,especially patients are elderly individuals..so 3.0 mph needing to work at 7.2 METS come under moderate intensity grade..

4, 220 lb=99.7kg

Vo2 max depends proportionately on the size of the individual..since proportionately more ventilation is required to deliver more oxygen to the alveoli..about 150watts there is a change,with ventilation increasing considerably more than expected..body mass =220lbs

Vo2 max = 5l O2/ min

Metabolic equivalent (MET) is defined to be 1.0kcal/ hr per day