SHAPE (Submaximal Heart and Pulmonary Evaluation) What
What is SHAPE?
Shortness of breath (SOB) is perhaps the most common chief complaint, which is difficult to evaluate without a full cardiac checkup and detailed medical history. The Submaximal Heart and Pulmonary Evaluation or SHAPE is a quick, easy, and noninvasive stress test aimed to evaluate oxygen consumption and carbon dioxide output. These values reflect the performance capabilities of the heart, lungs, and peripheral vasculature to sustain O2 delivery and CO2 removal, which are crucial in maintaining proper breathing patterns.How is the test performed?
SHAPE uses a 5.5 inch high step, on which patients step up and down for 3 minutes during while the computer measures peak CO2 levels. The patient first breathes through the mouth piece for one minute, and then goes up and down the step (while holding on to the frame) for 3 minutes.What is the advantage of SHAPE?
SHAPE is a submaximal pulmonary evaluation meaning that the intensity of the activity
will never exceed 85 percent of your maximum heart rate. This also means that patients
do not have to exert themselves too much during the exercise phase of the test.
The test takes approximately 6 minutes