Kinesiology 2230A/B Lecture Notes - Lecture 15: Carbonic Anhydrase, Skeletal Muscle, Blood Plasma
12 Oct 2017
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If you hold breath c02 will build up in blood stream low ph (lower partial pressure) If blood temperature is hot, (when running) you will not be able to carry as much o2 hemoglobin as the blood is over heating: low blood o2 hemoglobin remains high. Effects enzymes ability to catalyze (they denature and unwrap) Respiratory diameters- o2, co2, ventilation to determine lactate threshold. Changing ventilation: more c02 in blood stream- chemo and respiratory receptors will. If ventilation were perfectly matched it would be a straight line. Vco2/vo2: once we get to threshold the rate will be increasing, co2 is increasing faster then o2 consumption so it increases (from krebs and buffering) Steady increase in ventilation first few minutes, and then we see non- linearly ventilation relative to 02 consumption. Isocapnia- measures co2 levels in the blood stream, - isolacatate buffering- co2. Ventialtion increases steadily and then all of a sudden your breathing frequency takes a jump.
