Cosmed Q-NRG, User Manual, Page: 62 / 152

60/148 REF C04717-02-91 Q-NRG User Manual, Edition 4.2
Chapter 3 - Q-NRG Operation COSMED srl
Glossary of Parameters
The following parameters are measured/calculated by Q-NRG
Parameter Description Available in Mode
VO2 (mL/min)
Oxygen consumption All
VCO2 (mL/min) Carbon dioxide production All
RQ (---) Respiratory quotient All
EE (Kcal/day) Energy expenditure All
VT (L) Expiratory breath volume VENTILATOR, MASK
VE (L/min) Expiratory minute ventilation VENTILATOR, MASK
RF (1/min)
Respiratory frequency VENTILATOR, MASK
FiO2 (%)
Inspiratory oxygen fraction All
FeO2 (%)
Mixed expiratory oxygen fraction All
FeCO2 (%) Mixed expiratory carbon dioxide fraction All
REE (Kcal/day) Averaged Energy Expenditure All
VO2_avg (mL/min) Averaged VO2 All
VCO2_avg (mL/min) Averaged VCO2 All
Vp (L/min) Dilution flow CANOPY
RQ_avg (mL/min)
Averaged RQ All
FAT (% or kcal/day or g/day)
Fat substrate metabolism All
CHO (% or kcal/day or g/day) Carbohydrate substrate metabolism All
PRO (% or kcal/day or g/day) Protein substrate metabolism (UN required) All
EEKg (kcal/day/kg) Averaged energy expenditure per kg of body weight All
Variability (%) Coefficient of variation of VO2 and VCO2 within the
specified average interval All
Duration (mm:ss)
Time elapsed from the beginning of recording All
Interval (mm:ss)
Duration of specified average interval All
Other Information
In the data tab, the last column “Info“ shows an alphabetic code to provide information for each single step (30 sec
sampling time). This code provides more information regarding issues which may occur during testing. Refer to the
legend below to know the meaning.
Acronym Description
A Current step belongs to specified average interval
C Automatic gas sensors calibration performed during current step