Lactic Acid System

Lactic Acid System

1. This system work anaerobically

2. The site of the reaction is in the muscle cells in the sarcoplasm

3. The controlling enzyme is PFK ( Glucose - Pyruvic acid)

   • LDH (Pyrovic - Lactic acid)
     • GPP Glycogen - Glucose

4. Energy Yield = 2 ATP

5. High intensity

   • Long Duration

6. By Products - Lactic acid

7. Specific stages of the lactic acid system

   • Stage 1: Glycogen(GPP) - Glucose(PFK) - Pyruvis acid + Energy
     • Lactic acid (LDH)
     • Coupled reaction
       • Energy + 2ADP + 2P - 2ATP

8. Must always end up with Lactic acid

9. Advantages of the Lactic acid system

   • Provides energy for high intensity exercise lasting between 10 - 180 seconds
     • This can work aerobically and Anaerobically
       • The anearobic require less reactions than the aerobic system so it provides a quicker supply of energy

10. Disadvantages of the Lactic acid system

    • Not as quick as the ATP/PC system
      • Produces alot of lactic acid
        • Net effect is muscle fatique and pain