Exercise guide
Dumbbell Seated Upper Half Biceps Curl
- Intermediate
- Isolation
- Rep-based
- Shoulders
- Upper arms
This partial-range variation targets the biceps in their most shortened position, maximizing tension on the 'peak' and improving mind-muscle connection. By focusing on the top half of the movement, you maintain constant tension and increase metabolic stress in the muscle.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Sit on a bench set to an upright or high-incline position with your feet flat on the floor for stability.
- Hold a dumbbell in each hand using a supinated (palms up) grip.
- Position your arms so your elbows are bent at a 90-degree angle, with your forearms parallel to the floor.
- Pin your elbows to your ribcage and press your shoulder blades firmly against the backrest.
How to do it
- Exhale as you curl the dumbbells upward toward your shoulders, moving only through the top half of the range of motion.
- Squeeze your biceps forcefully at the top of the movement for a full second.
- Inhale as you lower the weights back down with control, stopping exactly when your forearms are parallel to the floor.
- Maintain a controlled tempo, focusing on a 1-second concentric (up) and a 2-second eccentric (down) phase.
Form checklist
- Do not allow the dumbbells to drop below the 90-degree parallel point.
- Keep your elbows locked in place at your sides; do not let them swing forward to assist the lift.
- Maintain a supinated grip with palms facing up throughout the entire set to maximize bicep engagement.
- Keep your back and head in contact with the bench to prevent using body momentum.
Pro tips
- Actively turn your pinky fingers toward your shoulders at the peak of the contraction to further intensify the bicep squeeze.
- Focus on the 'mind-muscle connection' by visualizing the bicep muscle bunching up as you reach the top of the rep.
Make it harder
- Add a 3-second isometric hold at the top of each repetition to increase time under tension.
- Perform these as a 'mechanical dropset' immediately after a set of full-range seated curls to reach total muscular failure.
Frequently asked
- What muscles does the dumbbell seated upper half biceps curl work?
- The dumbbell seated upper half biceps curl primarily targets the biceps, and also works the forearms as secondary muscles.
- What equipment do you need for the dumbbell seated upper half biceps curl?
- The dumbbell seated upper half biceps curl uses dumbbell.
- Is the dumbbell seated upper half biceps curl good for beginners?
- The dumbbell seated upper half biceps curl is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.