Agonist and antagonist PDF

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Agonist and Antagonist Muscles Summary Agonist / prime mover – muscle directly responsible for the movement at a joint. Antagonist – muscle that is relaxing and has the opposite action to the agonist. MOVEMENTS Wrist flexion –

AGONIST (prime mover) Flexor Digitorum

ANTAGONIST (relaxed) Extensor Digitorum

Wrist extension –

Extensor Digitorum

Flexor Digitorum

Elbow flexion –

Biceps Brachii

Triceps Brachii

Elbow extension –

Triceps Brachii

Biceps Brachii

Shoulder flexion –

Anterior Deltoid Pectoralis Major Biceps Brachii Posterior deltoid Latissimus Dorsi Latissimus Dorsi Pectoralis major

Posterior Deltoid Latissimus Dorsi Triceps Brachii Anterior deltoid Pectoralis Major Deltoid (middle)

Shoulder abduction –

Deltoid (middle)

Spine/ Trunk flexion –

Rectus Abdominis

Latissimus Dorsi Pectoralis major Erector Spinae

Shoulder extension Shoulder adduction –

Spine/ Trunk extension– Erector Spinae

Rectus Abdominis

Hip flexion –

Knee flexion –

Iliopsoas Quadriceps Gluteus Maximus Hamstrings Hamstrings

Gluteus Maximus Hamstrings Iliopsoas Quadriceps Quadriceps

Knee extension –

Quadriceps

Hamstrings

Dorsiflexion –

Tibialis Anterior

Gastrocnemius + soleus

Plantarflexion –

Gastrocnemius + soleus

Tibialis Anterior

Hip extension –...