In the Swinamer equation, what do T and VT represent?

• A. Temperature in degrees Celsius and tidal volume
• B. Time and ventilation threshold
• C. Temperature and venous return
• D. Total energy and tidal velocity

Answer: (A)

In the Swinamer equation, the two variables are temperature and tidal volume. T represents body temperature, typically expressed in degrees Celsius, since metabolic rate changes with fever or hypothermia. VT stands for tidal volume, the amount of air moved per breath (breath size). These factors are used to estimate aspects of energy expenditure related to respiration. The other options involve concepts like time, thresholds, venous return, or tidal velocity, which aren’t part of this equation.