Muscle fibre types

Lloyd Dean

Muscle Fibre Types

Re-cap

Very important……………

Have we learnt?

Quick fire questions!

Can you spot each connective structure?

Articulate

-Tendon-Epimysium-Fascia-Bundles of muscle fires-Perimyisum-Muscle fibre-Myofilament-Actin-Myosin

Try and describe the basic structure of muscle by looking at this picture

AimsDescribe 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)

Task

Team “Oxy” Team “FOG”

Walk around the room until told otherwise

1:1

12 press ups

3:1

I shall pick the music!

Every 10 seconds perform an explosive activity

10:1

Team “Bolt”

Muscle Fibre Types

Slow twitch fibres Fast twitch fibres

Type 1 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

Wh

y? W

hy?

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?

Endurance Force

What doesthis tell us?

Can we apply it to other Characteristics?

Click through for Pinterest board!

Fibre Type ConsiderationsMost 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?

Task

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

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

Oxidative F.O.G F.G

Glycogen stores

Moderate Highest

Fatigability Moderate

Force Produced

Low

Your table might be structured liked this

TermsStructure What is it? Also see

these as clues! E.g. if it needs oxygen it will probably be….

Glycogen Stores 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

Mitochondrial Density

Powerhouse of the cell. Help to convert food into energy.

Triglyceride Stores Fat stores in the body

RecapSnowball time……………………………………………………………………………………………

It is nearly Christmas!

Let’s turn answers into merit and distinctions!