SAR HS 342 Lecture Notes - Lecture 4: Glycolysis, Pyruvic Acid, Gluconeogenesis
31 Dec 2018
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Document Summary
Anaerobic vs. aerobic systems: anaerobic: short term; high intensity, aerobic: long-term; low intensity. Energy system contribution: all systems are always on; some systems are more predominant over others based on time active, atp-pc system immediate, glycolytic pathways next, aerobic pathways after. Initially anaerobic pathways: atp-pc system, glycolysis, aerobic pathways (reach steady state, atp produced by aerobic pathways. Lag in atp production as signals might not get there as fast as possible. Epoc: recovery from exercise where oxygen uptake remains elevated. Slow portion: elevated hr/breathing (increase in energy needed, elevated body temperature (increase in metabolic rate, elevated epinephrine/norepinephrine (increase in metabolic rate, conversion of lactate to glucose. Longer exercise bouts lead to longer epoc due to a longer slow portion. Lower intensity utilizes fat metabolism: higher intensity utilizes carbohydrates metabolism. Incremental exercise: oxygen uptake increases linearly until vo2 max is reached, maximum ability for cardiorespiratory system to deliver oxygen, ability of muscles to use oxygen and produce atp aerobically.
