Muscle fibre types

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Anatomy

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Muscle fibre types

  1. 1. Muscle Fibre Types Lloyd Dean
  2. 2. Re-cap Very important…………… Have we learnt? Quick fire questions!
  3. 3. Can you spot each connective structure?
  4. 4. Articulate Try and describe the basic structure of muscle by looking at this picture -Tendon -Epimysium -Fascia -Bundles of muscle fires -Perimyisum -Muscle fibre -Myofilament -Actin -Myosin
  5. 5. Aims Describe structure and function of Type 1, Type 2a and Type 2b (P4) Review how recruitment patterns vary (M4) Describe the ability for the muscle fibres to adapt with increased long term activity and detraining (P4) Analyse the different structures and how each sports may require ranging fibre types (D4)
  6. 6. Task Team “Oxy” Team “FOG” Team “Bolt” Walk around the 12 press ups Every 10 seconds room until told otherwise 1:1 3:1 I shall pick the music! perform an explosive activity 10:1
  7. 7. Muscle Fibre Types Why? Why? Slow twitch fibres Type 1 Fast twitch fibres Type 2 Slow oxidative fibres Fast glycolytic fibres Red in colour White in colour Contain large numbers of mitochondria (Power providers) Contain low numbers of mitochondria Endurance type activities Strength / anaerobic type activities
  8. 8. Muscle Fibre Types Type 2 fibres subdivide: Type 2a – Fast oxidative glycolytic (FOG) Type 2b – Fast glycolytic (FG)  What sports would lend them selves to each type 2 fibres?
  9. 9. Enduranc e What does this tell us? Can we apply it to other Characteristics? Force
  10. 10. Click through for Pinterest board!
  11. 11. Fibre Type Considerations Most potential is based on genetics Specific training can develop respective fibre types (E.g. Clean and jerk for Fast Glycotic) Detraining will result in the loss of F.O.G & F.G to Oxidative Recovery (Timings)? Nutrition? Sleep? Tapering?
  12. 12. Task Oxidative F.O.G Glycogen stores Moderate Fatigability F.G Highest Moderate Force Produced Low We are going to look at certain words related to fibre types With your study buddy, try and compare each fibre type Include different sports for each Your table might be structured liked this If you don’t know a term yet, feel free to use mobile devices to research http://www.wordle.net/show/wrdl/5994443/Muscle_Fibre_Types
  13. 13. Terms Structure Glycogen Stores What is it? Also see these as clues! E.g. if it needs oxygen it will probably be…. Carbohydrate stored in the muscle and liver Myoglobin Found in muscle tissue. An oxygen-binding protein. Capillary Density The amount of capillaries found in the muscle Powerhouse of the cell. Help to convert food into energy. Mitochondrial Density Triglyceride Stores Fat stores in the body
  14. 14. Recap Snowball time……………………………………………… …………………………………………… It is nearly Christmas! Let’s turn answers into merit and distinctions!

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