Exercise guide
Dumbbell Close-Grip Curl
- Intermediate
- Isolation
- Rep-based
- Upper arms
The dumbbell close-grip curl targets the long head of the biceps to improve muscle peak and thickness by keeping the hands positioned inside shoulder-width. This variation increases tension on the outer biceps and enhances the mind-muscle connection through a concentrated range of motion.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Stand with your feet shoulder-width apart and a slight bend in your knees for stability.
- Hold a dumbbell in each hand with a supinated (palms up) grip.
- Position the dumbbells in front of your thighs so the inner ends are touching or very close together.
- Pull your shoulders back and down to set a stable base and keep your chest upright.
How to do it
- Exhale as you curl the dumbbells toward your upper chest, keeping the weights pressed together throughout the movement.
- Squeeze your biceps hard at the top of the movement for one second to maximize peak contraction.
- Inhale as you slowly lower the dumbbells back to the starting position using a controlled 3-second eccentric tempo.
- Fully extend your arms at the bottom of the rep without locking your elbows to maintain tension.
Form checklist
- Keep your elbows pinned to your ribcage; do not let them drift forward or flare out.
- Maintain a neutral spine and avoid using momentum or swinging your torso to lift the weight.
- Keep the dumbbells touching or as close as possible to maintain the narrow-grip stimulus.
- Ensure your wrists remain straight and neutral throughout the entire range of motion.
Pro tips
- Actively press the dumbbells against each other during the ascent to create internal tension and maximize recruitment of the biceps' long head.
- Focus on 'dragging' the weights up your midline to keep the tension strictly on the arms rather than the front deltoids.
Make it harder
- Incorporate a '1.5 rep' style: curl all the way up, lower halfway down, curl back to the top, then lower all the way to the start.
- Add a 3-second isometric hold at the midpoint (90-degree elbow flexion) of every rep.
Frequently asked
- What muscles does the dumbbell close-grip curl work?
- The dumbbell close-grip curl primarily targets the biceps.
- What equipment do you need for the dumbbell close-grip curl?
- The dumbbell close-grip curl uses dumbbell.
- Is the dumbbell close-grip curl good for beginners?
- The dumbbell close-grip curl is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.