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'Energy Systems'

Exercise Physiology

QuestionAnswerQuestionAnswer
How is ATP made in the ATP-PC system? Phosphocreatine decomposes and releases a large amount of energy that is used to construct ATP How fast is the Anaerobic Glycolysis system? Nearly 50% slower than the ATP-PC system
How fast does the ATP-PC system work? Instantaneously How much energy does the Anaerobic Glycolysis System provide? 30-40 seconds of muscle contraction
How quickly is energy available with the ATP-PC system? Immediately What does the Anaerobic Glycolysis system form and what does it cause? Lactic acid which causes muscular fatigue
How much energy does the ATP-PC system provide muscles? Enough energy for muscle contraction up to 15 seconds What is unique to the Anaerobic Glycolysis system? It doesn’t require the presence of oxygen, It uses only carbohydrates (Glucogen and Glucose), It releases enough energy for the resynthesis of only small amounts of ATP
Why is the ATP-PC system the most rapid source of ATP? It doesn’t depend on a long series of chemical reactions, It doesn’t depend on transporting the oxygen we breathe to the working muscles, Both ATP and PC are stored directly within the contractile mechanisms of the muscle When is the aerobic system used? Predominantly during low-intensity, long-duration exercise Ex: Running a marathon
How is ATP made in the aerobic system? A combination of fatty acids, amino acids, and glucose with oxygen releases energy that forms ATP What is unique to the aerobic system? It yields the most ATP, It requires oxygen, It requires several series of complex chemical reactions
How much energy is provided with the Aerobic system? It will provide energy as long as there are nutrients to utilize
What are the three energy systems used by muscles? ATP-PC or Phosphagen System, Anaerobic Glycolysis or Lactic Acid System, Aerobic of Oxygen System When is the anaerobic Glycolysis system used? During high-intensity, short-duration activities Ex: Sprinting 400-800 meters
When is the ATP-PC system used? During high-intensity, short duration exercise Ex: Sprinting 100 meters How is ATP made during the Anaerobic Glycolysis System? Stored glycogen is split into glucose, and through Glycolysis, split again into pyruvic acid. The energy released during this process forms ATP.
Created by: Julzt
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