Body

ligament

Where it runs

Three thickened bands in the front of the joint capsule, from the rim of the socket to the neck of the upper arm bone.

What it does

Keep the ball from sliding forward out of the socket, each most at a different arm position.

In a pull-up

In a completely relaxed hang, more of the load is held by the capsule and these bands than by muscle.

Drills that work it

In the programs

• Phase 1 — Set the shoulder blades — Shoulder: kipping works, strict pull-ups do not

Works alongside

Other structures the same drills work.

• Forearm and finger flexors
• Latissimus dorsi
• Coracohumeral ligament
• Latissimus and teres major tendons

Questions about this

• Why does my shoulder hurt at the start of a pull-up, from a dead hang?
• How long should I hang from a bar for shoulder rehab?

General anatomy, simplified. It describes a structure, not anybody's shoulder, and cannot say what is wrong with yours.