Presentation on theme: "Joints Describe and explain how different types of joints affect participation and performance in games activities by allowing specific ranges of movement."— Presentation transcript:
Joints Describe and explain how different types of joints affect participation and performance in games activities by allowing specific ranges of movement. Examples of ball and socket, hinge, gliding and pivot should be used. The value of healthy and efficient joints on performance.
Classification of joints There are three groups of joints around the body 1.Fibrous (immovable) 2.Cartilaginous (slightly movable) 3.Synovial (freely movable) In sport or physical education we are mainly concerned with freely movable synovial joints
Synovial joints Synovial fluid- found in the joint, - lubricates the joint,- allows friction free movement Synovial membrane a layer in the capsule secretes synovial fluid
Ligamentsbands of tough fibrous tissue hold bones together limit the range of movement prevent dislocation
Hyaline cartilage hard tough slippery layer covers the head of bones forming joints. - protects the bone - reduces friction in the joint
Range of Motion Each joint in the body only allows a specific range of motion (movement).
Movement Our joints allow us to move in many different ways. There are 5 different ways in which we can move. 1.Flexion 2.Extension 3.Abduction 4.Adduction 5.Rotation
Flexion and extension Extension is when you open a joint (straighten). Flexion is when you close a joint (bending).
Abduction and adduction Abduction is sideways movement away from the body (abduct – take away). Adduction is sideways movement towards the body (adduct – to add).
Rotation Rotation is a turning motion around an axis (e.g. head around axis). It can also be the turning of a limb.
Movement at joints Type of jointMovement allowed Ball and socketflexion extension abduction adduction rotation Hingeflexion extension Pivotrotation Saddleflexion extension abduction adduction Condyloidflexion extension abduction adduction Glidingsmall gliding in all directions
Analysis of movement Cricket Player Batting Type of Joint Movement Bones wrist extension radius condyloid carpels ulna
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