Agonist / Antagonist Muscles

Agonist /Antagonist Muscles

Agonist Antagonist
Anterior Deltoids  Latissimus dorsi
Medial Deltoids Latissimus dorsi
Posterior Deltoids Pectoralis major 


Pectoralis major  Posterior deltoids
Pectoralis major  Middle trapezius
Pectoralis major Rhomboids


Hip flexors Gluteus maximus
Iliosoas + Rectus femoris Gluteus maximus + Hamstrings
Gluteus medius  Hip adductors


Up Trapezius + Levator scapulae Low Trapezius + Pectoralis Minor
Subscapularis + Teres major  Infraspinatus + Teres minor


Biceps brachii Triceps brachii


Ant Tibialis + Ext Digitorum Long Gastrocnemius + Soleus
Tibialis Ant + Tibialis Posterior Ext Digitorum Longus + Peroneals


Concentric Contraction against gravity
Eccentric Lengthening with gravity