Dumbbell Concentration Curl

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Beginner
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Seated isolation exercise targeting the biceps brachii by bracing the elbow on the inner thigh to minimize momentum and build bicep strength and size.

About Exercise

Equipment

Dumbbells, Flat Bench

Difficulty

1/5 • Beginner

Primary Muscle Groups

Biceps

Secondary Muscles

Forearms

Accessory Muscles

Traps

Popularity Score

8

Goals

Strength
Hypertrophy

Training Style

Bodybuilding

Setup Requirements

Requires Rack

No

Requires Bench

Yes

Requires Spotter

No

Space Needed

Small

Noise Level

Low

Muscle Breakdown

Biceps

10/10

Long Head, Short Head, Brachialis

Forearms

4/10

Flexors

Traps

2/10

Upper Traps

Programming

Typical Rep Range

8-15 reps

Rest Between Sets

30-60 seconds

How to Perform

Sit on a flat bench with feet wider than shoulder-width. Lean forward slightly and rest your elbow against the inside of your thigh.

  1. Grip dumbbell with supinated hand and fully extend arm toward floor.
  2. Keep upper arm fixed against thigh and exhale as you curl dumbbell toward shoulder.
  3. Squeeze biceps at top and pause briefly.
  4. Inhale and slowly lower dumbbell to full extension without locking elbow.
  5. Switch arms after completing reps on one side.

Coaching Tips

Form Cues

  • Fix elbow on thigh
  • Squeeze at top
  • Control the descent
  • No body swing

Breathing

Inhale during the lowering phase and exhale as you curl the weight up while bracing your core.

Tempo

3-1-1

Range of Motion

From full elbow extension to flexion where dumbbell nears shoulder, keeping upper arm stationary.

Safety

Safety Notes

  • Start with light weight to master form
  • Avoid if acute elbow pain present
  • Do not hyperextend elbows

Spotting

Not typically needed; use light weights or safeties if progressing heavy.

Common Mistakes

  • Using momentum to lift
  • Swinging torso forward
  • Locking elbows at bottom
  • Rushing eccentric phase

When to Avoid

  • Acute elbow or wrist injury
  • Shoulder impingement

Flexibility Needed

  • Full elbow flexion and extension
  • Basic shoulder mobility

Build Up First

  • Master basic standing dumbbell curl form

Also known as

Concentration Curl, Seated Bicep Curl, One-Arm Dumbbell Curl

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