isolated functions of Major Muscles

Kinetic Chain Checkpoint Joint Action Primary Mover(s)
Ankle Dorsiflexion Anterior Tibialis
Plantarflexion Posterior Tibialis, Soleus, Gastrocnemius
Inversion Anterior & Posterior Tibialis
Eversion Peroneus Longus
Knee Flexion Hamstring Complex
Extension Quadriceps
Hip Flexion Iliacus, Psoas Major
Extension Gluteus Maximus
Abduction Gluteus Medius, Gluteus Minimus
Adduction Adductor Complex
Internal Rotation Tensor Fascia Latae, Adductors
External Rotation Gluteus Medius, Gluteus Maximus
Spine/ Trunk Flexion Rectus Abdominis, Obliques
Extension Erector Spinae
Lateral Flexion Quadratus Lumborum
Rotation Obliques, Rectus Abdominis
Shoulder Flexion Pectoralis Major, Anterior Deltoid
Extension Latissimus Dorsi, Teres Major, Posterior Deltoid
Abduction Middle Deltoid, Supraspinatus
Adduction Pectoralis Major, Latissimus Dorsi, Teres Major
Internal Rotation Pectoralis Major, Latissimus Dorsi, Teres Major, Subscapularis
External Rotation Teres Minor, Infraspinatus
Retraction Rhomboid Major and Minor, Middle Trapezius
Protraction Serratus Anterior, Pectoralis Minor
Elevation Upper Trapezius
Depression Lower Trapezius
Elbow Flexion Biceps Brachii
Extension Triceps Brachii

Disclaimer: The above table offers a simplified list of muscle groups for joint actions, Please do note that joint movements are not limited to the actions of just one muscle, multiple muscles work in order to produce movement.