Exercise guide
Dumbbell Seated Preacher Curl
- Intermediate
- Isolation
- Rep-based
- Upper arms
This isolation exercise targets the biceps brachii, particularly the short head, by using the preacher bench to eliminate momentum and provide a stable base for maximum tension.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Adjust the preacher bench height so your armpits rest comfortably against the top of the pad while seated.
- Sit firmly on the bench and place the back of your upper arm against the pad, ensuring your armpit is snug against the edge.
- Hold a dumbbell in one hand with an underhand (supinated) grip, extending your arm fully down the slope.
- Keep your feet flat on the floor and your chest pressed firmly against the chest pad for stability.
How to do it
- Inhale as you slowly lower the dumbbell until your arm is fully extended, feeling a deep stretch in the bicep.
- Exhale and curl the dumbbell toward your shoulder by contracting your bicep, keeping your upper arm glued to the pad.
- Squeeze your bicep hard at the top of the movement for one second, ensuring you do not lift your elbow off the pad.
- Lower the weight with a controlled 2-3 second tempo back to the starting position.
Form checklist
- Keep your armpit pinned to the top of the pad throughout the entire set.
- Maintain a neutral wrist position to avoid excessive forearm strain.
- Avoid leaning back or using torso momentum to swing the weight up.
- Ensure a full range of motion, stopping just before the elbow locks out to maintain tension.
Pro tips
- Focus on rotating your pinky finger toward your shoulder at the top of the curl to maximize bicep peak contraction.
- Keep your non-working hand on the bench or your thigh to maintain a stable torso and prevent body rotation.
Make it harder
- Implement a 4-second eccentric (lowering) phase to increase time under tension and muscle fiber recruitment.
- Perform '1.5 reps' by doing a full range of motion curl followed by a half-rep from the bottom to the midpoint.
Frequently asked
- What muscles does the dumbbell seated preacher curl work?
- The dumbbell seated preacher curl primarily targets the biceps.
- What equipment do you need for the dumbbell seated preacher curl?
- The dumbbell seated preacher curl uses dumbbell.
- Is the dumbbell seated preacher curl good for beginners?
- The dumbbell seated preacher curl is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.