VO₂ measures how much oxygen your body uses per minute and reflects aerobic capacity and efficiency.
Heart rate is the number of beats per minute and indicates cardiovascular effort and training intensity.
FeO₂ is the percentage of oxygen in exhaled air, showing how much oxygen your body extracts during exercise.
Rf measures breaths per minute and rises as your body demands more oxygen.
Tv is the amount of air moved in or out of the lungs with each breath.
Ve is total air moved per minute, combining respiratory rate and tidal volume.
EqO₂ indicates breathing efficiency by showing how much ventilation is needed per liter of oxygen consumed.
Atmospheric pressure affects oxygen availability and overall performance.
Ambient air temperature influences heat stress and exercise response.
Humidity shows moisture in the air and affects cooling efficiency and cardiovascular load.