1. Learning Outcomes
ALL – Show your understanding of the 2 different types of muscular contraction
SOME – Apply your knowledge of muscles & movement into a table without using the book

2. Can you remember the 3 muscle types?
They work constantly
They make up the majority of muscles in the body
They are under our conscious control
They are found in the walls of the heart
These are muscles you cannot control
Are found in the walls of the intestines & blood vessels
They are also known as skeletal

3. Answers Cardiac Skeletal/voluntary Voluntary Cardiac & Involuntary

4. Separate categories relating to specific movements FLEXORS EXTENSORS muscles that bend work against the the limb at a joint flexors & straighten by contracting a limb by contracting ADDUCTORS ABDUCTORS the muscles that move move a limb away a limb towards the body from the body
Muscular system allows movement to happen as well as protection, body shape, stabilise joints.
On feet – after 3 show me the specific movements using arms

5. Isotonic contractions occur when movement is created.
When muscles contract they do so in two ways:
Isotonic contractions occur when movement is created.
Concentric – This is when the muscle shortens
Eccentric – When the muscle gradually lengthens and returns to normal length and shape
Example –
Concentric – bicep curl – bicep con
Eccentric – tricep -
Fast-paced games require isotonic contractions.

6. Isometric contractions
Isometric contractions do not create movement – they are working to keep the joint stable. The muscle neither shortens nor lengthens.
This type of contraction occurs in several situations:
To support a weight in a stationary position.
To hold the body in a particular position (e.g., in gymnastics).
Tug of war, hand stand
© EMPICS Ltd
Isometric contractions occur in a rugby scrum

13. Muscle Pair/Group Movement they allow Sporting Example
Biceps & Triceps
Kicking a football
Abdominals & Latissimus dorsi
Adduction & Abduction of the arms
 Flexing & extending the foot at the ankle joint
Take off phase of any type of jump
MUSCLES WORK IN PAIRS OR GROUPS – THEY PULL AND NEVER PUSH
Most movements involve a variety of movements that are linked together. A pole-vaulter for example, would be involved in a very complex number of movements involving all of the major muscle groups.

15. MUSCLES WORK IN PAIRS OR GROUPS – THEY PULL BUT NEVER PUSH
Using this fact try & fill in the table relating to muscles & their movement – without the book first

16. Muscle Pair/Group Movement they allow Sporting Example
Biceps & Triceps
Flexion & extension at the elbow
 Throwing Movement such as javelin or a ball or a smash in volleyball   
 Hamstrings & Quadriceps
Flexion & extension at the knee
Kicking a football and running movements
Abdominals & Latissimus Dorsi
Movement around stomach & waist (bending/twisting) they also help keep body upright & straight
Used in specific exercises such as sit-ups. Also to keep body straight in movement
  Pectorals & Deltoids
Adduction & Abduction of the arms
 Shot Putt, Swimming strokes, Tennis drive
 Gastrocnemius / muscle in front of the leg (don’t need to know name)
 Flexing & extending the foot at the ankle joint
Take off phase of any type of jump

17. Homework
Revise the muscle pairs/groups and find 2 pictures of sporting examples that show the movement involved & describe the movement taking place using KEY TERMS
these pictures to Mrs Gregory before next lesson 