Question

Describe the differences between a ramp and a stage/step exercise test to exhaustion. What are the pros and cons for each??

Answer 1

The ramp protocol utilizes gradual increase in work rate. It incorporates gradual increase in grades of ramp steepness and maximally stressing the O2 transport.
The gradual increase in work makes the muscles switch from anaerobic to aerobic pathway for metabolism. This results in delayed onset of fatigue and exhaustion.  
Pros of ramp test : even pacing is not a problem as it is a incremental test.
does not overstress body
Cons : require more equipments

load increment and determining maximal oxygen capacity do not have a set protocol.

The step tests incorporates constant work rate. It causes the patient to work continuously at a constant rate. This causes the body to depend on anaerobic pathway for metabolism. This makes the patient to fatigue at a faster rate.
Pros : easy to perform, low cost and does not require too many instruments

Cons : even pacing on steps can be hard to achieve

people with coordination problems may not be able to perform the test.
stress out body too much