The document discusses the different types of muscles in the body and their roles. There are three main types: skeletal muscles which are voluntary and allow movement; cardiac muscles which are involuntary and power the heart; and smooth muscles which are involuntary and control internal organs. It focuses on skeletal muscles and their functions, including the roles of agonist muscles which directly cause movement, antagonist muscles which oppose movement, and fixator muscles which stabilize joints. Examples are given of these muscle types for the bicep curl exercise. Students are tasked with identifying the agonist, antagonist, and fixator muscles for different sporting actions through diagrams. The two main types of muscular contraction - isotonic and isometric - are also explained in terms of muscle

1. Muscles and Movement. Aims: To know the different muscle types in our body. To understand the different types of muscular contractions. To know the roles of the different muscles during a sporting action.

2. Recap from previous lesson. Add this info to your spider diagram!!! Elbow Femur, Tibia, Fibula, Patella Shoulder Carpals Wrist Articulating bones Joint type Location

3. What are the 3 Different types of muscle found within our body? Skeletal – Voluntary Cardiac – Involuntary Smooth – Involuntary This topic focuses upon voluntary skeletal muscle.

4. Functions of skeletal muscle. Muscles can only pull (contract), they have specific roles as members of a group of muscles to produce movement. Three Roles: Agonist (Prime Mover) muscle Antagonist muscle (opposite action) Fixator muscle (contracts isometrically)

5. For the bicep curl exercise, which muscles form the; agonist, antagonist and fixator ? (flexion of the elbow) Agonist muscle : Directly responsible for the movement at a joint. E.g. Biceps. Antagonist : Opposing action to that of the agonist. E.g. Triceps. Fixator: Allows the agonist to work effectively by stabilising the origin of the agonist. E.g. deltoid.

6. Task. With a partner; act out a number of different sporting actions. E.g. kicking a ball, chest pass etc. Draw a diagram of this action. Identify the : Agonist, Antagonist and Fixator muscles involved with this movement.

7. The two main types of muscular contraction Isotonic Isometric No movement. Movement occurs. Eccentric = lengthening. Concentric = shortening.

8. The role of muscle contractions. Isotonic – concentric contraction occurs in agonist muscles. Isotonic – eccentric contraction occurs in antagonist muscles. Isometric contraction occurs in fixator muscles which stabilise joints aiding muscle movement.

9. Homework Learn the different muscles within the body. I will be testing you next lesson. You need to know all the muscles in the Quadriceps and Hamstrings!!