Vyntus cpx unit
The Vyntus CPX is a medical device used for cardiopulmonary exercise testing. It is designed to measure and analyze respiratory and cardiovascular parameters during physical activity. The Vyntus CPX provides objective data to healthcare professionals for the assessment of a patient's exercise capacity and overall health.
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3 protocols using vyntus cpx unit
Incremental Treadmill Exercise Test for Peak V'O2
Incremental Treadmill Test Protocol
The test was considered successful when the subjects indicated exhaustion, preferably supported by a plateau in V′O2 and/or the heart rate (HR) response. Duration and completed treadmill distance were recorded. V′O2, carbon dioxide output (V′CO2), tidal volume (VT), respiratory rate (RR) and HR were measured directly, while minute ventilation (V′E) was calculated from VT and RR.
Treadmill Exercise Test for VO2peak Evaluation
Variables of gas exchange and airflow were measured breath by breath and averaged over 10 s. The highest values for oxygen uptake determined during the last 60 s were recorded as peak values (VO2peak). VO2peak was reported as ml/kg/min and as the percentage of predicted using reference equations from a large sample of Norwegian subjects of relevant age (21 (link)). Exercise performance was described by the completed distance (meters) on the treadmill. The percentage inspiratory time to total time in a respiratory cycle (Ti/Ttot%) was used to describe the breathing pattern. Breathing reserve was the difference between maximal voluntary ventilation (FEV1 x 35) and peak minute ventilation reported as the percentage of maximal voluntary ventilation.
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