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Movement analysis project - The skeletal system.

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Introduction

Movement Analysis Project

The Skeletal System

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The human skeleton consists of 206 bones, many of which move or hinge at joints and which, enable the body to achieve a variety of actions, such as running, throwing, striking, pulling and pushing. The human skeleton was created by evolution to perform six functions:

  1. To provide a lever system against which muscles can pull
  2. To provide a large surface area for the attachment of muscles
  3. To protect delicate organs (i.e the cranium protects the brain)
  4. To give shape to the body
  5. To give support to the body (i.e the firm construction of the thorax that permits breathing)
  6. To manufacture red blood cells and store fat, calcium and phosphate

The Muscular System

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One of the important functions of the human body is to enable movement.

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Middle

Eccentric / Concentric

 2

Arm Action in Pushup

Shoulder

Extension + Flexion 

Deltoids / Pectorals

Eccentric / Concentric

 3

Elbow

Flexion + Extension

Triceps

Eccentric / Concentric

 1

Leg action in Kick

Hip

Flexion 

Quadriceps rectus, Abdominals 

Concentric

 3

Knee

Extension 

Quadriceps

Concentric

 3

Ankle

Plantar Flexion

Tibialis Anterior

Eccentric

3

5. Explaining joints their actions and their plane movements.

Joint

Action

Plane

Hip

Flexion

Median

Extension

Median

Abduction

Frontal

Adduction

Frontal

Lateral Rotation

Horizontal

Medial Rotation

Horizontal

Knee

Flexion

Median

Extension

Median

Medial Rotation (When Fixed)

Horizontal

Lateral Rotation (When Fixed)

Horizontal

Ankle

Dorsi Flexion

Median

Plantar Flexion

Median

Inversion

Frontal

Eversion

Frontal

Shoulder

Flexion

Median

Extension

Median

Adduction

Frontal

Abduction

Frontal

Horizontal Abduction

Horizontal

Medial Rotation

Horizontal

Lateral Rotation

Horizontal

Elbow

Flexion

Median

Extension

Median

Pronation

Horizontal

Supination

Horizontal

Wrist

Flexion

Median

Extension

Median

6. What lever system operates when we nod our head?

The First Class

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Conclusion

The Third Lever Class Lever System is operating when we perform a bicep curl.

In the Third Class Lever System the effort is between the Fulcrum and the Weight.

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9. Write a paragraph explaining how levers can affect performance in sport.

The skeleton provides us with a lever system that allows us to move. A lever is a rigid structure (I. E Bone) that rotates around a fixed joint (Falcrum) and is used to apply a force (Effort) against a resistance. The levers provide a larger range of movement, like the extension of an arm in a tennis shot, which is provided by the movement of a lever. The lever decreases resistance and makes a strike in sport.

Bibliography.

Physical Education and the Study of Sport Textbook – Mosby

Sport & PE – 2nd Edition – Houlder & Stoughton

Both Pictures obtained from the Internet.

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