Incline Dumbbell Curl

What it hits

Parts of the target muscle.

• Outer biceps

  Hit

  Long head - recruited more with elbows behind the body.

• Inner biceps

  Not hit

  Short head - recruited more with elbows in front of the body.

• Underneath biceps

  Not hit

  Brachialis - pushes the bicep up. Loves neutral grip.

• Forearm peak

  Not hit

  Brachioradialis - recruited with pronated or hammer grip.

The movement

Get it right, not roughly right.

Optimal form

Tap for soundATHLEAN-X™

5:05· ATHLEAN-X™

Stop Screwing Up Incline Dumbbell Curls (PROPER FORM!)

Bench at 45–60°, shoulders pinned to the back pad, arms hanging straight down behind the torso. Curl without the elbows traveling forward. Get a deep stretch at the bottom.

Common mistakes

• Letting the elbows drift forward - kills the long-head stretch that makes this exercise valuable.
• Cheating the bottom range - the bottom is the whole point.

Where you should feel it

A long, almost uncomfortable stretch on the outer bicep at the bottom.

Injury risk · 2/10

SafetyThe deep long-head stretch is intense - build to it from standing curls if you're new.

Progression

Step back, or step up.

Same movement family, different rung. Harder versions sit above, easier versions below — tap a rung to land there.

1. Progress toCable curl, arm behind bodySame long-head bias with constant cable tension.
2. You're hereIncline Dumbbell Curl
3. Step back toBarbell curlStanding two-arm load - no stretch component to manage.
4. Step back toDumbbell curlStanding - less stretch, easier to learn the supination habit.

Variations

Same movement, moved emphasis.

Ranked by how directly each variation still trains biceps. 80%+ means the target barely changes. Below 60%, the emphasis has meaningfully shifted — useful for variety, but less precise for the specific part. The label calls it at a glance.

• Bayesian (cable, behind body)

  Same line, replace dumbbells with a low cable behind you.

  95% on target

  On target

  Same target, minor adjustment.

• Lower incline (30°)

  Less stretch, more comfort.

  80% on target

  On target

  Same target, minor adjustment.

Cool-down

Worked it. Walk it back down.

A couple of minutes here pays back in soreness avoided tomorrow. Browse the full library.

• Wrist Flexor Stretch

  Arm extended in front, palm up. Use the other hand to pull the fingers down and back toward the body. Elbow stays locked. 30s per side.

  ForearmsBiceps

• Wrist Extensor Stretch

  Arm extended, palm DOWN. Pull the back of the hand down and toward the body. 30s per side. Cheap fix for cranky elbows after pulling days.

  Forearms

• Biceps Doorway Stretch

  Stand in a doorway. Place a palm flat on the door frame at shoulder height, fingers up, thumb pointing away. Rotate the chest away from the wall to feel a stretch down the front of the upper arm. 30s per side.

  BicepsChestFront delts