Physiology 3120 Lecture Notes - Lecture 4: Vo2 Max, Sigmoid Function, Hemoglobin

• School: Western University
• Department: Physiology
• Course: Physiology 3120
• Professor: Tom Stavraky

Document Summary

Definition vo2: volume of oxygen that the body utilizes (while breathing room air) Definition vo2 max: maximum volume of oxygen that the body can utilize (while breathing room air: units: liters/min or ml/kg/min, average person: 30-40ml/kg/min, good (the best) measure of aerobic fitness. Factors influencing vmax: cv system get the blood there , muscles oxygen utilization , respiratory system get the oxygen in the blood important for measurement of. Amount of oxygen inhaled amount of oxygen exhaled. Vo2 = (minute volume * % o2 of inhaled air) (minute volume * % o2 exhaled air) Remember: minute volume = tidal volume * respiratory rate. Measurement of max : stepwise increases in workload (i. e. on a treadmill: will eventually reach a point where you no longer use oxygen and will start using anaerobic methods. Oxygen transport: dissolved gas, bound to hemoglobin (1) oxygen transport: as a dissolved gas.