Exercise Guide
How to do dumbbell incline hammer curl
Master the setup, range of motion, and tempo for safer, more effective reps.
Overview
The incline position places the biceps in a lengthened state, making the start of the rep more challenging. The 'thumbs-up' grip shifts the load to the brachialis—the muscle that sits under the biceps—and the brachioradialis in the forearm. This combination builds arm width and improves grip strength simultaneously.
Why Use It
- Builds the brachialis to create a wider, thicker-looking arm.
- Strengthens the forearms and improves grip durability.
- Eliminates momentum by fixing your back against the bench.
When to Use It
This is an excellent bridge between heavy back work and biceps isolation. Use it to hit both the upper arms and forearms at once.
Instructions for Proper Form
Setup
- Bench Setup: Set your bench to a 45-60 degree incline.
- Grip: Hold a dumbbell in each hand with a neutral grip, palms facing your body.
- Body Position: Sit back so your spine is fully supported by the bench and let your arms hang straight down.
Execution
- The Curl: Keeping your palms facing inward, curl the weights toward your shoulders without letting your elbows move forward.
Pro Tip: Keep your thumbs pointing at the ceiling throughout the entire rep to keep the focus on your forearms.
- The Lowering: Lower the weights slowly until your arms are completely straight. Pause for a split second at the bottom to kill momentum.
Coaching Cues
- Thumbs to the ceiling
- Pin your elbows to the floor
- Squeeze the side of your arm at the top
Common Mistakes
- Rotating the Wrists: Turning the palms up at the top which shifts focus away from the brachialis.
- Shoulder Shrugging: Using your traps to help pull the weight up when the arms get tired.
- Short-changing the Bottom: Not letting the arms go fully straight, missing the most effective part of the stretch.
How to Fix It
- Rotating the Wrists: Keep your thumbs pointing at the ceiling throughout the entire rep.
- Shoulder Shrugging: Keep your neck long and your shoulders pushed down away from your ears.
- Short-changing the Bottom: Let the weights hang heavy for a moment at the bottom of each rep to ensure a full stretch.
Mechanics
Use these setup and execution anchors to keep the rep organized, repeatable, and easier to progress.
Movement Pattern
Isolation
Body Position
Seated
Load Style
Bilateral
Muscles Worked
Primary
- Biceps
- Brachialis
Secondary
- Brachioradialis
Stabilizers
- Core
- Wrist-extensors
Setup Requirements
- Set the bench to a 45 to 60-degree incline.
- Hold dumbbells with a neutral grip (palms facing each other).
- Sit back with your shoulders pinned to the bench.
Form Checklist
- Are your palms facing each other?
- Are your elbows staying still?
- Are you getting a full stretch at the bottom?
Range of Motion
Start with arms fully extended. Curl the weights up while keeping palms facing each other, then lower slowly.
Breathing Pattern
Exhale as you curl up; inhale as you lower the weights.
Tempo Guidance
1 second up, 1 second squeeze, 2-3 seconds down.
Caution Notes
- Ensure your wrists stay straight and stiff throughout the movement.
Programming
Treat these guidelines as practical programming defaults, then scale load, volume, and frequency to match the rest of the training week.
Best For
- Arm thickness.
- Forearm development.
- Grip strength.
Goal Tags
Rep Ranges
- 8-12 reps for growth.
- 12-15 reps for forearm endurance.
Set Guidance
3 sets.
Rest Guidance
60-90 seconds.
Frequency
2 times per week.
Pairings
- Pair with reverse curls for a complete forearm workout.
Audience Notes
- Perfect for anyone looking to build thicker, more powerful-looking arms.
Substitution Targets
- Standing Hammer Curl
- Rope Hammer Curl
FAQ
Common Questions
What is the difference between this and a regular curl?
The hammer grip shifts the work to the brachialis and forearms, making the arm look thicker.
Alternatives
Start with the closest related options, then browse fallback alternatives that keep the same primary training focus.