BackDumbbellIsolation — scapular retraction

Incline-Bench Kelso Shrug

Reviewed by Bryan Cortez, MS

Retract the shoulder blades without turning the rep into a row.

Rep Sweet Spot

10-20

Sets

2-4

sets

RIR

1-3

Canonical coaching profile

Complete coaching guidance, with the evidence boundary visible

This profile is served from the canonical Airtable coaching library. Its theory tier and evidence confidence remain separate source-truth fields.

Theory

Theory tier S

Evidence confidence

Mechanics-led evidence confidence (D)

The tier is a reasoned biomechanics judgment. Evidence grade D is mechanics-led and is not direct hypertrophy proof; the full category evidence-control program remains pending.

Why it ranks: Kelso shrug (prone dumbbell scapular retraction on incline bench) is ranked for Upper back because its named path directly expresses scapular retraction with an upper-back-directed row or reverse-fly path; the multi-joint setup trades some local specificity for loading capacity. The main limitation is individual joint fit and execution consistency.
Primary limiter: Learning to move the shoulder blades without shrugging or bending the elbows.
Safety and fit: Use a comfortable bench angle and shoulder range; stop if the front of the shoulder feels pinched.
What would change the call: Reverse or lower the placement if a corrected line-of-force model shows that another limiter owns the task, or if the declared range cannot be progressed repeatably.

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Demonstration

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Physique Skool is filming one canonical demonstration per exercise. Until this movement is published, use the setup, execution, common errors, programming, and substitutions below.

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How to do it

Setup

Set an incline bench around 30-45 degrees
Lie chest-down with feet braced
Hold light dumbbells with arms hanging straight
Let the shoulder blades spread without losing torso contact

Execution

Pull the shoulder blades toward each other
Keep elbows straight
Pause without shrugging
Let the blades glide apart under control

Common Errors

Turning the movement into a row
Shrugging toward the ears
Lifting the chest off the pad
Using a range too large to control

Cues That Work

Straight arms; pinch the bench between the shoulder blades; let them spread again

No-Fly Zone

Avoid loads that require elbow flexion, neck extension, or torso lifting from the bench.

Programming

Sequence priority

Late

It is a low-systemic-fatigue scapular accessory that fits after the heavier rows and pulls.

Progression

Model — Double

Fallback model — RPE

Keep the bench angle and straight-arm scapular range fixed; add reps before moving up one dumbbell step.

Best program fit

Pull

Load increments

Standardthe smallest dumbbell increase

Smaller incrementadd reps or a one-second squeeze

Larger incrementone dumbbell step after straight-arm range is stable

If it hurts

Pain is information, not a challenge to push through. Stop the set if pain is sharp, worsening, or changes how you move. These are exercise-selection options, not medical diagnosis or rehabilitation advice.

Work down this list in order. Stop at the first change that removes the pain.

Step 1
Setup tweaks
Reduce the bench angle, load, or range until scapular motion is clear.
Step 2
ROM / tempo / bias
Use a two-second squeeze and a three-second return.
Step 3
Implement swap
Chest-supported high row or cable face pull.

Substitutions

Approved fallback

Chest-supported high row or cable face pull.

The Evidence

This isolates scapular retraction more than a conventional row. It does not replace loaded rowing for all upper-back functions or prove a direct hypertrophy advantage.

SFR — 2.7

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