Energy systems

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  • Energy Systems
    • Aerobic energy system
      • Glycolysis
        • The process of breaking down glycogen into pyruvic acid
        • 4 ATP Produced
        • Occurs in the sarcoplasm of muscle cells
      • Krebs Cycle
        • Series of chemical reactions in the mitochondria
        • Oxidises acetyl coenzyme A to carbon dioxide
        • 2 ATP are used
      • Electron Transport Chain
        • 34 molecules of ATP are produced
        • Hydrogen is oxidised to qater
      • Training effects
        • Increase cardiac hypertrophy and resting stroke volume
        • Decrease resting heart rate
        • Increased blood volume and haemoglobin levels
        • Increased muscle stores of glycogen
        • Increased cappilarisation of muscles
        • Increased number of mitochondria
    • Anaerobic energy system
      • ATP-PC Energy System
        • Every molecule of PC broken down, sufficient energy is released to resynthesise one molecule of ATP
        • Sporting Example: SPRINTING
        • Positives
          • No waste products are made
          • energy is released rapidly
        • PC - C + P + ENERGY
          • ENERGY + ADP + P -ATP
        • ENERGY + ADP + P -ATP
        • Negatives
          • Stores are limited
          • stores take time to replenish
      • Lactate anaerobic energy system
        • Produces energy for ATP resynthesis by
        • Breaks down glucose without oxygen
        • Produces lactate as a by products
  • Resynthesis

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