(Re)assessment of the COSMED Quark CPET and VO2Master Pro Systems for Measuring Pulmonary Gas Exchange and Ventilation.

ABSTRACT: We assessed the validity, reliability, and transferability of gas exchange and ventilatory variables from two commonly used metabolic measurement systems (COSMED Quark and VO2Master Pro). Two identical devices from each system were independently connected to a metabolic simulator (VacuMed), and 2 min of steady-state data was recorded at simulated oxygen uptake (V̇O₂) of 1, 2, 3, and 4 L∙min^-1 achieved through minute ventilation (V̇_E) of 30, 60, 105, and 150 L∙min^-1. Each metabolic analyzer recorded data three times for each "intensity" in a randomized order, and assessments were completed on two separate days. Douglas bag-based measurements were also made once at each simulated "intensity". Measured steady-state data (average of final 1.5 min) fo

SUBMITTER: Thiessen JS 

PROVIDER: S-EPMC11780302 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature