Single Arm Quadruped Serratus Anterior Exercise

A one-arm quadruped stability drill that challenges serratus and shoulder control while resisting trunk rotation — a strong progression for athletes.

Muscles Targeted

Serratus anterior, rotator cuff support, scapular stabilizers, obliques and trunk anti-rotation control.

Key Benefits

  • Builds serratus strength and scapular control under load
  • Trains shoulder stability with anti-rotation demand
  • Excellent for athletes and advanced progressions
  • No equipment needed
If hips twist, shorten the reach and slow down.

Equipment Needed

Floor space (mat optional).

How to Perform Single Arm Quadruped Serratus Anterior Exercise

  1. Set up on hands and knees with a strong, stacked torso.
  2. Shift weight slightly to one arm while keeping scapula stable.
  3. Reach the opposite arm forward (as shown).
  4. Hold briefly without rotating the trunk.
  5. Return and repeat for reps, then switch sides.

Programming Options

  • 2–4 sets of 6–10 reps per side
  • Or 20–40 second holds/slow reps per side
  • Rest 60–90 seconds

Why This Variation Works

Single-arm support increases shoulder stabilization demand while the reach adds anti-rotation and control requirements through the trunk.

When to Use It

Scapular stability progressions, overhead-athlete routines, and return-to-sport shoulder plans.

Frequently Asked Questions

Is this too advanced?

If you can’t keep the trunk steady, start with quadruped scap push-ups or serratus punches first.

Should my supporting elbow lock?

Yes — keep it straight, but don’t jam the joint. Think “strong arm.”

How do I make it easier?

Shorten the reach, widen the knees, and slow the motion down.