Dips Are a Serratus Anterior Exercise. Start Training Them Like One.

You probably file dips under chest and triceps. That filing system misses the muscle doing the real structural work: the serratus anterior.

The serratus anterior originates on the first nine ribs and inserts along the inner border of your shoulder blade. It pulls the scapula forward around your rib cage, and it rotates the blade upward when your arm goes overhead. But its role that matters most in a dip is simpler: it pins the shoulder blade to your torso while force travels through your arm.

If that muscle gives out during a dip, your shoulder blade lifts away from your ribs. The joint loses its stable base, and you press from a compromised position.

Closed-Chain Load Changes the Stimulus

Open-chain drills move your hand through space while your body stays still. Band punches and supine serratus punches fit that category. Dips flip the arrangement. Your hands stay fixed on the bars and your body moves through the range.

A 1999 study in the American Journal of Sports Medicine led by Decker and colleagues measured serratus anterior activation during several shoulder exercises. The push-up plus produced the highest serratus anterior activity of the movements tested in that study. That exercise is a closed-chain protraction drill on the floor. A dip takes the same scapular task and adds a deeper loaded range plus an eccentric demand on the way down. In a dip, the serratus has to work through the lowering phase, hold at the bottom, and drive the press back to lockout, all while your bodyweight loads the shoulder joint from a fixed hand position. A band punch cannot match that combination.

Why Isolation Drills Fall Short

Isolation drills teach movement quality, and they help when you're learning scapular control without much load. The mistake is expecting that control to carry over automatically. Load and body position differ. You can perform perfect band protractions and still see your shoulder blade wing during a dip because the demand isn't the same.

Film yourself from behind on a slow negative. The inner edge of your shoulder blade should stay seated against your ribs. If it separates, your serratus isn't holding. That's a control deficit. The fix is to regress the dip until the scapula can manage the load.

How to Train the Serratus on Dip Bars

Set the dip bars at shoulder width or slightly wider. Too narrow changes the shoulder angle and too wide shortens the loaded range. A stable station matters because wobble forces you to brace everything except the muscle you're trying to train. BULLBAR 2.0 has a freestanding frame built from 16-gauge steel, a 400-pound capacity, and dip bars that adjust from 21 to 24 inches across three height settings. The open portal design leaves the center clear. Your shoulder blades move without a center post or back pad in the way.

1. Support hold. Lock out your arms, keep your body tight, and hold for 20 to 30 seconds. The shoulder blades stay seated on the ribs the entire time.
2. Scapular protraction reps. From the support position, let the shoulder blades retract slightly, then push them forward without bending your elbows. Do 2 to 3 sets of 8 to 10 reps. This straight-arm dip shrug loads the serratus under bodyweight.
3. Slow negatives. Lower over 3 to 5 seconds, pause for one second at the bottom, then press back up. If you can't finish the press, step back up and repeat the negative.
4. Full dips with a top pause. Press to lockout, drive the shoulder blades forward for a one-count, then lower. That brief protraction under load adds serratus work to every rep.

Train dips twice a week. Start with 3 to 5 sets of 5 to 12 reps at a variation you can control. The control standard is simple: if the shoulder blade lifts off the ribs on any rep, that rep doesn't count. Move to the next progression only when the current one looks clean from behind. If you feel sharp or achy pain in the shoulder joint, stop and get assessed by a qualified coach or medical professional. Soreness in the chest and triceps is normal.

Rethink the Exercise Label

Dips build chest and triceps strength, but that label leaves out the serratus anterior. The serratus is active from your first support hold to the final lockout. When you train dips with scapular control, one rep gives you shoulder stability and pressing strength at the same time. That beats piling three isolation drills onto the end of your workout. Stop treating dips as an accessory you rush through. Program them as a scapular stability exercise that happens to build real upper body strength.

If your current dip station wobbles or forces you to fight the equipment, the drill turns into survival instead of control. BULLBAR 2.0 gives you a freestanding, stable base to train the serratus anterior under full closed-chain load. Try BULLBAR for 100 days, risk-free. Free 3 to 5 day U.S. shipping and a lifetime limited warranty.