Muscles / Shoulders
Deltoid (delts)
Shoulders · Upper body
How it works
| Origin | Lateral clavicle, acromion, spine of the scapula |
|---|---|
| Insertion | Deltoid tuberosity of the humerus |
| Actions |
|
Anatomy reference: OpenStax Anatomy and Physiology (CC BY)
Coaching notes
Three heads with distinct actions. Name the head, not just 'delts'.
Say the muscle, not the group
Clients and interviewers both notice the difference between "deltoid" and a vague region name. Use the specific term and explain the action in plain language.
Best exercises for this muscle
| Exercise | Pattern | Equipment | Complexity | |
|---|---|---|---|---|
| Seated machine shoulder press | Vertical push | Machine | 1/5 | Open |
| Band overhead press | Vertical push | Resistance band | 2/5 | Open |
| Dumbbell shoulder press | Vertical push | Dumbbell | 3/5 | Open |
| Landmine press | Vertical push | Barbell | 3/5 | Open |
| Barbell overhead press | Vertical push | Barbell | 4/5 | Open |
| Overhead carry | Carry | Dumbbell | 4/5 | Open |
Also trains this muscle as a secondary mover
Suitcase holdIncline push-upWall push-upFront plankChest press machinePush-upSide plankDumbbell bench pressBarbell bench press