Infraspinatus - Infraspinatus exercise method and action diagram tutorial
Infraspinatus infraspinatus
[Location] It is located in the infraspinatus fossa of the scapula, deep to the trapezius muscle. It is a thick triangular muscle; the infraspinatus muscle is located in the infraspinatus fossa, and part of the muscle is covered by the deltoid and trapezius muscles. It originates from the infraspinatus fossa, passes outward behind the shoulder joint, and ends at the middle of the greater tuberosity of the humerus. Its function is to externally rotate the shoulder joint.
[Starting point] Infraspinatus fossa
[Insertion point] The middle part of the greater tubercle of the humerus
[Innervation] Suprascapular nerve
[Function γIt forms the rotator cuff, and its function is external rotation and adduction of the shoulder joint
[Physical examination of infraspinatus] External rotation attenuation test
[Exercise method]Butterfly machine, pull-ups, leaning over dumbbell shoulder swings,sitting behind the neck pull-down, T-Barbell Row
