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The simplest preacher curl alternative with one dumbbell is a seated concentration curl. It supports the upper arm against your inner thigh without a preacher machine. An incline curl, standing curl or cable curl can also train elbow flexion, but each changes the support, arm position or resistance. Choose the property you want to preserve.
Swipe the table to see every column.
| Your reason for substituting | Best starting option | What it preserves | What changes |
|---|---|---|---|
| No preacher pad, one dumbbell | Seated concentration curl | Upper-arm support and controlled elbow flexion | Thigh support, one arm at a time, different shoulder/pad geometry |
| No bench or machine | Standing supinated dumbbell curl | Elbow flexion with a supinated grip | Upper arm is unsupported; torso control matters |
| Want a different shoulder position | Incline dumbbell curl on a suitable bench | Dumbbell elbow flexion | Upper arms sit behind the torso; this is not a preacher-position copy |
| Want chest support | Chest-supported spider curl on a suitable incline bench | Torso support and arms forward/down | Upper arms are not braced on a preacher pad; weight and floor clearance differ |
| Own a cable station | Standing low-cable curl | Adjustable cable resistance and repeatable setup | Cable direction changes the resistance profile; upper arm is unsupported |
| Need the actual preacher position | Compatible preacher pad or standalone station | A dedicated pad supporting arms in front | Adds equipment, fit requirements and setup cost |
1. Concentration curl: supported work without a preacher machine
- Sit on a stable seat with feet planted and legs comfortably apart. Hold one manageable dumbbell and lean forward enough to brace the back of your upper arm against the inner thigh.
- Begin with the elbow comfortably extended, without forcing lockout. Keep the wrist controlled and palm oriented upward as you curl.
- Lift by bending the elbow while the upper arm stays supported. Avoid lifting the shoulder or twisting the torso to finish.
- Lower smoothly, then repeat the same range. Train the other side with the same controlled standard.
Use Catalyst Athletics’ concentration-curl video to check the setup. If the weight hits the floor or your torso cannot stay settled, change the seat/setup or reduce range and load. Do not brace the dumbbell against a makeshift platform.
2. Standing dumbbell curl: the no-bench option
Stand in a balanced stance with a light dumbbell at each side, palms turning upward as appropriate for your comfortable grip. Bend the elbows without using a hip drive or leaning backward. Lower under control. This is a useful equipment-light substitute, but it removes the upper-arm support that makes the preacher setup distinctive.
A neutral-grip hammer curl is another elbow-flexion option when that grip suits your plan; it changes forearm orientation and should not be described as the same exercise with identical loading. If the reason for substitution is pain, do not use this guide to diagnose the cause or push through symptoms.
3. Incline curl: a deliberate change of arm position
Set a suitable adjustable bench to a position that supports the torso, plant the feet and let the arms hang behind the torso line without forcing the shoulders. Curl without drifting the elbows forward and lower under control. Choose a load for this version rather than copying a preacher-curl weight.
The Catalyst Athletics demonstration shows the incline version. This is a different shoulder position from a preacher curl, not a method of recreating preacher support. Skip it if you cannot find a comfortable supported position.
4. Spider curl: chest support is not upper-arm support
Use a manufacturer-approved chest-supported position on a stable incline bench. Let the arms hang down in front, then curl while keeping the chest settled. Check that both dumbbells clear the frame and floor through the full controlled path. An ordinary bench backrest is not automatically approved for every prone exercise position.
Unlike a preacher curl, the upper arms do not rest on a pad. Choose it when torso support is the reason for switching, not when you need to replicate the pad contact.
5. Low-cable curl: change the resistance setup
Use the station's approved handle and connection, set a manageable load, and stand where the cable has a clear path. Curl without pulling the torso backward. Cable direction and your distance from the pulley affect leverage through the movement. “Cable” does not mean identical tension at the elbow at every angle.
If you already own suitable equipment, use the functional trainer exercise reference. A whole cable machine is an expensive purchase solely to replace one curl.
The sample is four unilateral work sets in total: two right and two left. It replaces a curl slot in a program; it is not an instruction to add all five variations on top of your existing arm work.
Which alternative is “best” for growth?
Choose a version you can progressively train with consistent technique and recovery. ACE's small acute muscle-activation study compared several curl variations; an activation result from one session does not establish a universal long-term hypertrophy winner. Upper-arm support, comfort, progression and equipment availability are more useful selection questions here.
When to buy a preacher setup
Buy when the actual preacher position is a recurring programmed requirement and your equipment cannot supply it. Our preacher-bench guide compares standalone and compatible attachments with complete costs. Otherwise, use the weights and suitable seating you already own.
For broader equipment decisions, compare dumbbell load ranges, bench adjustment and fit and cable setups. These purchases solve different gaps; none is required merely because this article lists an exercise using it.
Sources and further demonstrations
- Catalyst Athletics: concentration-curl demonstration and execution
- Catalyst Athletics: incline dumbbell curl demonstration
- ACE biceps study: tested movements and limits of an acute activation comparison
Product information checked October 20, 2026. Prices and availability can change; confirm the selected model, required components, shipping and tax before ordering.