Cardiopulmonary exercise testing setup.

A cardiopulmonary exercise test (CPET) is an evaluation of the cardiopulmonary system.

Introduction to Cardiopulmonary Exercise Testing

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  • The Cardiopulmonary Exercise Test (CPET) is a sensitive way of diagnosing shortness of breath and its cause. The test is non-invasive and is usually performed by affixing electrodes and pads - these are completely painless - to various parts of the patient's chest and having them sit on a stationary bike and pedal.

    Basic measurements entered during Cardiopulmonary Exercise Testing are: respiratory volume and frequency, oxygen intake, carbon-dioxide output and heart rate. Having these, other parameters can be determined such as minute volume, gas exchange rate and breath equivalents for oxygen and carbon dioxide.

  • Based on this, sophisticated statements can be made as to the performance of different organs. CORTEX's Cardiopulmonary Exercise Testing systems are used in medicine, in high-performance sport and in the fitness sector.

    CORTEX specializes in developing, manufacturing and selling Cardiopulmonary Exercise Testing systems. Cardiopulmonary Exercise Testing involves the parallel examination of reactions of a person's heart, lung, vascular and metabolic system while under physical stress.


    Will I cope with the exercise required?

    As with a standard exercise test just about everyone can cope with a cardiopulmonary exercise test. The bike makes the test easier than walking on a treadmill as it is a non-weight bearing activity and only slight increases in resistance are added. The exercise intensity is increased based on your capabilities and at any point you would like to stop you may do so. You will be encouraged to do as much as you can as the more you do the more information we get for your doctor.

    Are there any risks involved?
    In the vast majority of cases the cardiopulmonary exercise test is carried out without any problems and the risks are very similar to those of a standard exercise test. Even when testing patients with a higher risk only 1 in 300 patients had a serious complication in a recent study. Medical help is near to hand to deal with possible problems.


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    A 40 minute video developed by the Ascension Health System to educate primary care doctors about the clinical value of cardiopulmonary exercise testing.

A Cardiopulmonary Exercise Test may take 45 to 60 minutes to complete

METALYZER® - cardiopulmonary exercise testing redefined
Cardiopulmonary exercise testing for diagnosis, therapy and prevention - that is the focal point of our research and development. The METALYZER® systems in conjunction with our MetaSoft® software are the key to our innovative success. Whether as a metabolic exercise testing system for performance testing or as a complete cardiopulmonary exercise testing system - CORTEX measurement technologies and the powerful CORTEX software solutions will convince you: