Functional Rehab Academy

Back to muscle test section

Infraspinatus

Muscle origin
Infraspinous fossa of scapula

Muscle insertion
Greater tubercle of humerus

Muscle function
Stability of the Glenohural joint (part of the rotatorcuff), external rotation of the shoulder and decelerator when throwing.

Nerve innervation
C5-6 (Lovett reactor T12-L1)

Primary muscle type
Phasic / Type I (70-80%)

Myofascial lines
Deep back arm line

 

Primary inhibatory muscles
Rhomboid, Triceps brachii, Latissimus dorsi, Teres major, Deltoid anterior, Pectoralis major, Biceps brachii

Organ relationship (T1-9, n. Vagus)

  • Thyroid (AK)
    • Symp – T1-4 (Thyroid Plexus)
    • Parasymp – CX (Vagus)
  • Lungs (AK)
    • Symp – T2-T6 (Pulmonary plexus)
    • Parasymp – CX (Vagus)
  • Gallbladder (AK)
    • Symp – T5-T9 (Celiac plexus)
    • Parasymp – CX (Vagus)
Upper part
Client is supine with the elbow at a 90 deg. flexion. Arm is placed in 115 deg. abduction and full external rotation. Stabilize the elbow and apply pressure around the wrist towards internal rotation of the shoulder.
Middle part
Client is supine with the elbow at a 90 deg. flexion. Arm is placed in 45 deg. abduction and full external rotation. Stabilize the elbow and apply pressure around the wrist towards internal rotation of the shoulder.
Lower part
Client is supine with the elbow at a 90 deg. flexion. Arm is placed in 25 deg. abduction and full external rotation. Stabilize the elbow and apply pressure around the wrist towards internal rotation of the shoulder.

Functional anatomy for

Infraspinatus

Related joints

  • Shoulder joint

Associated muscles

Release exercises

Corrective strength exercises

Back to muscle test section

Functional Rehab Academy

Manual and practical therapy strategies that will help you find the root cause(s) and achieve faster and better results with your clients.

Functional Rehab Academy is a part of:
Move2Peak Academy ApS, Denmark
contact@functionalrehabacademy.com

Member

Legal