How to train your shoulders

Three heads, one joint, more variables than most people manage

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Anatomy

The deltoid has three distinct heads: the anterior (front) delt assists in pressing and forward raises; the lateral (side) delt creates shoulder width and is the primary target for overhead pressing and lateral raises; and the posterior (rear) delt assists in rowing, face pulls, and reverse fly movements. The rotator cuff, four smaller muscles underneath, stabilizes the glenohumeral joint. Without adequate rotator cuff function and rear-delt development, the shoulder joint is vulnerable to impingement and injury under any pressing load.

How to train it

Overhead pressing (barbell or dumbbell) builds the anterior and lateral heads under heavy load. Lateral raises isolate the side delt; they are most effective done with strict form at a controlled tempo in the 12–20 rep range. Rear-delt work (face pulls, reverse flyes, rear cable raises) is chronically undertrained; most people need more of it, not less. Two to three pressing sessions per week combined with dedicated lateral and rear-delt accessory work covers all three heads. The most common mistake: all pressing, no lateral or rear work. This creates internal rotation dominance that leads to rounded shoulders and impingement.

Coaching cues

Staple shoulders exercises

Barbell

Barbell Overhead Press

Dumbbell

Dumbbell Shoulder Press

Dumbbell

Side Lateral Raise

Cable

Face Pull

Dumbbell

Arnold Dumbbell Press

All shoulders exercises (127)

Train it with MyoAmigo

MyoAmigo's MyoMap heatmap shows your shoulders volume against an evidence-based weekly band, so you can see at a glance whether you're under-training it. See also how many sets per muscle per week and the training guides.

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