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Muscle Action
GCSE PE Muscle Actions.
| Muscle | Action |
|---|---|
| Biceps | Flexion at the elbow - bending the arm |
| Triceps | Extension at the elbow - straightening the arm. |
| Quadriceps | Extension at the knee - straightening the leg. |
| Deltoid | Abducts the arm at the shoulder - lifts the arms up and out to the sides of the body. |
| Trapezius | Holds and rotates your shoulders. Moves your head back and sideways. |
| Abdominals | Flexion at the hips - bending the body at the waist. |
| Pectorals | Flexion at the shoulder - adduction at the shoulder - lifting the arms up and towards the body. |
| Latissimus Dorsi | Extension at the shoulder - adduction at the shoulder - lowering the arm and moving it towards the body. |
| Hamstring | Flexion at the knee - bending the leg. |
| Gluteals | Extension at the hips - straightening the body at the waist. |
| Gastrocnemius | Extending the ankle - allowing us to stand on tip toes |