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Dumbbell Shoulder Extension

Intermediate
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Bent-over isolation exercise using dumbbells to target rear deltoids for shoulder mass and posture improvement; emphasizes controlled horizontal abduction.

About Exercise

Equipment

Dumbbells

Difficulty

2/5 • Intermediate

Primary Muscle Groups

Shoulders

Secondary Muscles

Traps, Triceps

Popularity Score

7

Goals

Hypertrophy
Strength

Training Style

Bodybuilding

Setup Requirements

Requires Rack

No

Requires Bench

No

Requires Spotter

No

Space Needed

Small

Noise Level

Low

Muscle Breakdown

Shoulders

10/10

Rear Delts

Lats

6/10

Traps

5/10

Mid Traps, Lower Traps

Triceps

4/10

Long Head

Programming

Typical Rep Range

8-15 reps

Rest Between Sets

60-90 seconds

How to Perform

Stand feet shoulder-width apart holding dumbbells at sides. Hinge forward at hips until torso is nearly parallel to floor with back straight and knees slightly bent; let dumbbells hang below chest with slight elbow bend.

  1. Keep core tight and back flat.
  2. Exhale and extend arms backward and slightly upward, squeezing shoulder blades together.
  3. Focus on rear deltoid contraction without shrugging shoulders.
  4. Pause briefly at top with arms parallel to torso.
  5. Inhale and lower dumbbells slowly to start position, resisting gravity.
  6. Repeat for reps maintaining control.

Coaching Tips

Form Cues

  • Squeeze shoulder blades
  • Keep elbows slightly bent
  • Lead with back of hands
  • Maintain flat back
  • Control the descent
  • Feel rear delts working

Breathing

Inhale during lowering phase; exhale as you extend arms and squeeze rear delts. Brace core throughout.

Tempo

3-1-2

Range of Motion

From dumbbells hanging directly below shoulders to arms extended backward parallel to torso; avoid excessive arching or swinging.

Safety

Safety Notes

  • Avoid if acute lower back pain present
  • Use lighter weights to prioritize form
  • Warm up shoulders and hips first
  • Stop if shoulder discomfort occurs
  • Keep movement slow to prevent strain

Spotting

Not typically required; perform solo with light weights or use safeties if needed for heavier sets.

Common Mistakes

  • Using momentum to swing weights
  • Rounding lower back
  • Shrugging shoulders upward
  • Excessive elbow bend
  • Going too heavy and losing form
  • Incomplete range at top

When to Avoid

  • Acute shoulder impingement
  • Lower back strain
  • Recent rotator cuff injury

Flexibility Needed

  • Adequate hip hinge flexibility
  • Shoulder extension range to parallel

Build Up First

  • Master basic hip hinge
  • Familiar with rear delt activation

Also known as

Bent-Over Rear Delt Extension, Dumbbell Rear Delt Raise

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