An assessment of VO₂ kinetics in the recovery phase of cardiopulmonary exercise test in patients with heart disease – importance and classification

Czech version

Authors: Leona Mífková; František Várnay; Pavel Homolka; Petr Dobšák
Authors‘ workplace: Klinika tělovýchovného lékařství a rehabilitace LF MU a FN u sv. Anny v Brně
Published in: Vnitř Lék 2017; 63(2): 107-113
Category: Reviews

Overview

The article reviews the course of VO₂ in the phase of recovery kinetics of oxygen uptake (VO₂rec) cardiopulmonary exercise test. VO₂rec kinetics cannot be completely defined using a single parameter. The article describes the three most frequently used methods: %VO₂-REC₂, T1/2 VO₂rec and TC VO₂, and provides detailed procedures of their analysis. The three aforementioned parameters are also at the heart of our classification of VO₂rec. The method %VO₂-REC₂ is an essential one, in our view, since its prognostic significance is proven and it can be also easily applied only based on a data record of the cardiopulmonary exercise test. %VO₂-REC₂ should be seen, together with VO_2peak, VE/VCO₂slope and exercise oscillatory ventilation (EOV) – as one of the four elementary prognostic markers establishing an advanced chronic heart failure.

Key words:
cardiopulmonary exercise test – chronic heart failure – prognosis – recovery kinetics of oxygen uptake

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