Psychology 2036A/B Lecture Notes - Lecture 8: Glycogen, Vapor Pressure, Pyruvic Acid

• School: Western University
• Department: Psychology
• Course: Psychology 2036A/B
• Professor: Doug Hazelwood

Document Summary

You have to be strong, anaerobically fit, but also need to be aerobic component to race. When the muscle becomes depleted of glycogen you will fatigue (regardless of fat stores still available) Need that movement through glycolysis to facilitate fat oxidation. Cant just independently get energy from fat oxidation. End up with glycerol and fatty acids in blood stream. Acetyl- coa is going to start accumulating (getting it from glycolysis and fatty acids) As it accumulates you have more substrate in citrate reaction in krebs cycle --> citrate accumulates --> inhibits pfk. As acetyl-coa accumulates it feeds back pyruvate hydrogenase --> inhibits pdh. During b- oxidation 1- fadh2 and a 1-nadh+h. So for each 2 carbon compound of your fatty acids you get: Triglyceride= 3fa (lots of atp available in just one triglyceride) The energy released during max power output is going to decrease over time due to the different energy systems involved.