Energy Expenditure and Oxygen Consumption Flashcards

Flashcards based on lecture notes about energy expenditure and oxygen consumption.

The first law of Thermodynamics (Law of Energy Conservation) states that _.

Energy can neither be created nor destroyed, it can only be transformed from one state to another.

We can measure energy expenditure indirectly via the measurement of oxygen consumption using a method called _.

Indirect Calorimetry

When calculating energy expenditure from oxygen consumption, the energy equivalent of oxygen is _.

21 kJ.L-10₂

One MET is equivalent to _.

3.5 ml.kg.min

The ratio of CO2/O2 tells us what type of fuel is being used by the body and is known as the _.

respiratory quotient (RQ)/ or respiratory exchange ratio (RER)

The heart rate response to a given power output may vary considerably due to differences in fitness, specifically the _.

stroke volume of the heart

The maximal oxygen uptake, or _, is the highest oxygen consumption that can be achieved despite increases in exercise intensity.

VO2max

VO2 max is the highest rate that _ can be synthesized via aerobic metabolism alone.

ATP

_ is defined as oxygen consumption per unit body mass per unit distance walked or run.

Economy

The EPOC comprises a fast component with the restitution of high energy phosphagen,specifically, _.

ATP and CP