2.1.4

Basic Sporting Movements 2

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Basic Movements - The Ankle

The hinge joint in the ankle is made up of the tibia, fibula and talus. The muscles used to move this joint are the gastrocnemius and tibialis anterior.

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Sporting example

  • When using plantar flexion while running/kicking/standing/jumping/squatting, the gastrocnemius contracts and shortens (concentric contraction). The gastrocnemius is the prime mover (agonist) because its contraction moves the limb directly. But the tibialis anterior relaxes and extends (antagonist) to counteract (act against) this action.
  • When using dorsiflexion during running/kicking/standing/jumping/squatting, the tibialis anterior is the prime mover (agonist) as it contracts and shortens (concentric contraction), while the gastrocnemius relaxes and extends (antagonist). This causes the weight to ‘sit’ onto the ankle.

Basic Movements - The Shoulder

The ball and socket joint in the shoulder is made up of the humerus, scapula and clavicle. The muscles used to move this joint are the deltoid and the latissimus dorsi.

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Bowling in cricket

  • When bowling in cricket, the deltoid contracts and shortens (concentric contraction).
  • The deltoid is the prime mover (agonist) because its contraction moves the shoulder directly.
  • But the latissimus dorsi relaxes and extends (antagonist) to counteract (act against) this action.
  • These muscles work together to make the arm rotate during a delivery.

Jump to other topics

1Applied Anatomy & Physiology

2Movement Analysis

3Physical Training

4The Principles of Training

5Using Data

6Sports Psychology

7Socio-cultural Influences

8Health & Fitness

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