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3 sources of Energy
- Carbohydrates: glucose
- Protein: Amino Acids
- Fats: Triglycerides
ATP-CP/PCr (Phosphogen System) Anaerobic
- No O2
- 0-10 secs
- High-Intensity Activity
- 2 ATP
3 Main Energy Systems
- Phosphogen System: No O2, ATP-CP
- Lactic Acid System: No O2, Glucose
- Aerobic System: O2, Carbs, Fats, Proteins
Hydrolysis of ATP using enzyme ATPase = ADP +Pi (inorganic phosphate) + Energy
ADP + CP cataylzed by Creatine Kinase = ATP + C
2 ATP Produced
Anaerobic Glycolysis/Lactic Acid System
- Breakdown of carbohydrate glycogen or glucose to pyruvate to create ATP
- No O2
- 30sec -2 Min
- Sustained High Intensity activity
- Net 2 ATP
- Byproduct of glycolysis.
- Lactatic Acid in anaerobic activity
- Acetyl Coenzyme A (acetyl-CoA): Oxidated to form ATP.
- Activities lasting more than a couple minutes.
- Uses O2 and fuel to create energy.
- Carbs, Fat or Protein
- 36 ATP Produced
Lag in the oxygen consumption to meet required energy demand at the beginning of exercise or increased exertion.
- Excess Postexercise Oxygen Consumption.
- More than normal amounts of oxygen are consumed after exercise to restore PC in muscles and oxygen in blood and tissues.
- More intense/duration extends EPOC
When oxygen consumption meets required energy demands to produce ATP at a sustained rate.
Last step in Krebs Cycle and Electron Transport Chain to produce Water and ATP.
Use of gluscose, fats and glycogen to resynthesize ATP from acetyl-CoA.
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