HLSC 3480U Lecture Notes - Lecture 2: Endergonic Reaction, Exergonic Process, Catabolism
Document Summary
Increase after 7-8 weeks of sprint training: greater in trained than in untrained people, energy system contribution and athletes, all energy systems are engaged at all times, some predominate based on exercise: Intensity: volume/duration, recovery intervals, training systems can be designed to target each system. Biological energy systems: three basic (metabolic) metabolic systems exist in muscle cells to replenish atp, the phosphagen system, glycolysis, the oxidative system. 2atp + h2o: lt begins at 50% to 60% of maximal oxygen uptake in untrained individuals. It begins at 70% to 80% in trained athletes: obla is a second increase in the rate of lactate accumulation. It occurs at higher relative intensities of exercise. Adp: fat oxidation, triglycerides stored in fat cells can be broken down by hormone-sensitive lipase. Cori cycle: lactate can be transported in the blood to the liver, where it is converted to glucose, this process is referred to as the cori cycle.
