KINE 1020 Lecture Notes - Lecture 36: Vo2 Max, Vascular Resistance, Ejection Fraction
26 Mar 2017
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If you inhale 500 ml then that 150 ml just gets pushed down (dead space) therefore you only get around 350 ml of new air for gas exchanged. Hemoglobin carries 98. 5% of o2: can carry up to 4 o2 and also carries other gases. To get oxygen from hemoglobin to muscle: different pressures. Low o2 pressure in muscle or whichever tissue which needs oxygen: time it takes to pass by. Slow = more time to pass from hemoglobin to tissue therefore more oxygen. Fast = less time and less oxygen. When you are exercising, it speeds this up so you have less time to drop off oxygen at tissues but there are adaptations to compensate. How does oxygen detach: lots of barriers for oxygen to come off, ph of environment and temperature of volume. As you exercise you build up lactic acid and you get warmer. Lower temperature + higher ph = not as much oxygen being dropped off.
