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Move Well · 9 min

The Shoulder: A Golf Ball on a Tee

Mobility is the feature. Stability is the requirement.

The Shoulder: A Golf Ball on a Tee Why Shoulder Stability Matters (Even If You’re Not a Pitcher or Gymnast) What the Shoulder Isn't : Unlike your hip joint — a deep, secure socket — your shoulder joint is more like: A golf ball sitting on a tee. That’s how shallow the socket is. It’s designed for maximum mobility , not maximum stability.

Why That’s a Problem This incredible freedom (hello overhead reach, tennis serves, and bear hugs) comes at a cost:

  • Less structural protection

  • Higher risk of dislocation, impingement, and rotator cuff issues

  • More demand on muscles for control Your Secret Weapon: The Scapula Your shoulder blade is the baseplate that stabilizes the tee. It connects your arm to your spine via 17 different muscles and moves in 6 key ways : The 6 Scapular Movements:

  1. Elevation – shrug up

  2. Depression – draw down

  3. Protraction – wrap forward (think push-up)

  4. Retraction – pinch back (think row)

  5. Upward rotation – arm overhead

  6. Downward rotation – arm lowers back down Healthy shoulder function depends on all six of these being strong, controlled, and coordinated. Movement Tip: Train Scapula Before Shoulder Before overhead presses and pull-ups, build control through:

  • Wall slides

  • Scap push-ups

  • Farmer carries

  • Serratus reach + lifts

  • Controlled rows Takeaway: Strong shoulders start with stable scapulae. Train the tee to support the ball — or risk losing your swing entirely.

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