Metabolic Carts (Oxygen Uptake Kinetics) Flashcards
What do metabolic carts do?
Collect data based on expired gas that can be processed and analysed
What is the benefit for using metabolic carts over Douglas Bags?
M carts can detect rapid change in expired O2 or CO2 fractions
What 2 methods do M Carts use to collect data?
Mixed chamber method or breath by breath
Why does breath by breath (M Cart) data need to be smoothed?
Susceptible to significant physiological variability
Need to be converted to time or breath averaging
What is the name of the Metabolic Cart we use in labs?
Quark CPET, COSMED
Can M Cart data display in real time?
Yes it can be displayed during testing and downloaded after completion
When exporting metabolic data to excel, can you choose which physiological parameters to include and which to remove?
Yes
What is a 9-panel plot?
A display during a cardio-pulmonary exercise test
How do you calculate VO2 slow component?
VO2 at minute 6 minus VO2 at minute 3
What is 1 MET equivalent to (in ml/kg/min)
3.5 ml/kg/min
What does MET refer to?
Metabolic equivalent - The amount of oxygen consumed whilst sitting in rest
What is the relationship between VO2 slow component and exercise intenisity?
VO2 slow component increases as exercise intensity increases
What is the energy cost of physical activity expressed as?
Multiples of resting metabolic rate
When is the VO2 slow component not evident (in relation to exercise intensity)?
When working at intensity below the lactate threshold
