G1
G2
G3
G4
G5
100


Concentrically accelerates elbow flexion

Brachialis



100

Concentrically accelerates shoulder internal rotation

Subscapularis 


100

Concentrically accelerates shoulder abduction

Medial Deltoid 


100

Concentrically accelerates scapular retraction

Middle Trapezius 


100

Concentrically accelerates shoulder extension, adduction, and internal rotation

Latissimus Dorsi 


200

Concentrically accelerates elbow flexion

Brachioradialis


200

Concentrically accelerates shoulder external rotation

Infraspinatus 


200

Concentrically accelerates shoulder flexion and internal rotation

Anterior Deltoid 


200

Concentrically accelerates scapular depression

Lower Trapezius 


200

Concentrically accelerates spinal extension and contralateral rotation

Multifidus 


300

Concentrically accelerates elbow extension and shoulder extension

Triceps Brachii


300

Concentrically accelerates shoulder external rotation


Teres Minor 


300

Concentrically protracts the scapula

Pectoralis Minor 


300

Concentrically produces scapular retraction and downward rotation

Rhomboid Minor 


300

Spinal lateral flexion

Quadratus Lumborum 


400

Concentrically accelerates elbow flexion, supination of the radioulnar joint, and shoulder flexion

Biceps Brachii


400

Concentrically accelerates shoulder internal rotation, adduction, and extension

Teres Major 


400

Concentrically accelerates shoulder flexion (clavicular fibers), horizontal adduction, and internal rotation

Pectoralis Major 


400

Concentrically produces scapular retraction and downward rotation

Rhomboid Major 


400

Concentrically accelerates spinal extension, rotation, and lateral flexion

Superficial Erector Spinae: Iliocostalis, Longissimus, and Spinalis 


500

Concentrically accelerates abduction of the arm

Supraspinatus 


500

Concentrically accelerates shoulder extension and external rotation

Posterior Deltoid 


500

- Concentrically accelerates cervical extension, lateral flexion, and rotation
- Concentrically accelerates scapular elevation

Upper Trapezius 


500

Concentrically accelerates scapular protraction

Serratus Anterior 


500

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