Can I do this exercise standing without a preacher bench?

You can perform it standing without a preacher bench, though the preacher bench offers more isolation and control for better muscle targeting.

Why does this feel harder than regular curls?

With the palms down, the biceps cannot help turn the forearm and its tendon wraps around the radius, so it contributes less and the brachialis and brachioradialis carry more of the load. Your grip and wrist extensors also have to hold the bar level, so most lifters use noticeably less weight than on a regular preacher curl.

Does the reverse grip work the forearm harder than a regular curl?

Not in the way most people expect. A study of competitive bodybuilders doing standing cable curls found the brachioradialis slightly less active with a palms-down grip than with a palms-up grip, while biceps activity dropped more. The forearm takes a bigger share of the work because the biceps does less, and the wrist extensors work to keep the hands level.

Should my arms go fully straight at the bottom?

Lower until your elbows are almost straight, keeping a slight bend and tension in the arms. Dropping into a locked or overextended elbow on the pad moves the strain from the muscles to the front of the elbow.

Is it okay to use an EZ bar instead?

Yes, an EZ bar is often more comfortable on the wrists while still effectively targeting the same muscles.

Barbell Preacher Curl (Reverse Grip)

What Is the Barbell Preacher Curl (Reverse Grip)?

Barbell Preacher Curl (Reverse Grip) is an isolation exercise that primarily targets the elbow flexors of the upper arm, with the brachialis and brachioradialis doing most of the work, and also engages the biceps brachii and the wrist extensors of the forearm. It is a beginner-level movement performed seated at a preacher bench with a straight barbell held in an overhand, palms-down grip.

This exercise is performed on a preacher bench, which helps stabilize the upper arms and minimize momentum. Turning the palms down changes how the elbow flexors share the load rather than bringing in a new muscle. The brachialis attaches to the ulna, so rotating the forearm does not change its pull, while the biceps attaches to the radius and also turns the palm up, so with the forearm pronated its tendon wraps around the radius and it works at a disadvantage. That shifts more of each rep onto the brachialis and brachioradialis, and the wrist extensors have to hold the hands level for the whole set.

It's especially useful for lifters looking to improve arm balance and forearm development, for those whose biceps take over on regular curls, and for anyone building grip and elbow-flexor strength. It usually sits near the end of an arm or pulling session as an accessory, with moderate loads and strict reps. Expect to use noticeably less weight than on a palms-up Barbell Preacher Curl.

However, due to the fixed wrist position with a straight bar, some individuals may prefer using an EZ bar to reduce strain. The EZ Bar Preacher Curl (Reverse Grip) sets the hands a little short of fully palms-down, and lifters who find any palms-down grip hard on the wrists can start with the Dumbbell Hammer Curl, which trains the same flexors with a neutral grip.

Muscles Worked

MuscleActivation

Brachialis: Primary
Brachioradialis: Primary
Biceps Brachii: High
Extensor Carpi Radialis: Medium
Deltoid: Minimal

Instructions

Adjust the seat so your armpits sit near the top edge of the preacher pad, then sit down and rest the backs of your upper arms flat on the pad.
Take the barbell from the hooks with an overhand (pronated) grip, palms facing down, hands about shoulder-width apart.
Start with your arms nearly straight, keeping a slight bend in the elbows, and your wrists in line with your forearms.
Curl the bar up by bending only at the elbows until your forearms are close to vertical and the bar is around chin height. Keep your upper arms and elbows on the pad.
Pause briefly at the top without letting your wrists bend or your elbows lift.
Lower the bar slowly to the starting position, stopping with a slight bend in the elbows instead of dropping into a locked elbow.
Repeat for the desired number of reps.

Common Mistakes

Using excessive weight
Too much load compromises form and increases wrist and elbow strain.
Letting the wrists bend
Letting the bar pull the hands down or cocking the wrists back shifts strain onto the wrist and the tendons at the outside of the elbow.
Lifting too quickly
Fast reps reduce muscle engagement and raise injury risk.
Letting elbows shift off the pad
Moving the elbows off the preacher bench reduces isolation and invites cheating.
Dropping into the bottom
Letting the bar fall into the straight-arm position and bouncing out of it loads the front of the elbow and takes work off the target muscles.

Injuries

Barbell Preacher Curl (Reverse Grip) is a low risk exercise when performed with proper technique. Wrist strain is the most common issue due to the fixed, overhand grip and the straight bar. The wrist extensors hold the hands level for the whole set, and their tendons attach at the outside of the elbow, so lifters with tennis elbow often find palms-down curls aggravate it.

The front of the elbow is loaded at the bottom of the rep, where the pad holds the arms close to straight. Always control the descent and avoid hyperextension at the bottom of the rep, rather than letting the bar drop into a locked elbow and bouncing out of it.

Prevent injuries by warming up the wrists and forearms beforehand and choosing a weight that allows for full control during both lifting and lowering phases. Beginners or those with limited wrist flexibility should use lighter weights and may consider switching to an EZ bar or a neutral-grip Dumbbell Hammer Curl. To progress, add load in small steps or slow the lowering phase rather than chasing heavy low-rep sets.

Stop the set if you feel sharp pain at the outside of the elbow or across the back of the wrist. Stop immediately and have it assessed if you feel a pop or sudden pain at the front of the elbow.

Overview

Primary Focus: Biceps
Equipment: Barbell and bench
Modality: Strength
Difficulty: Beginner

Alternative Exercises

Frequently Asked Questions

Q: Can I do this exercise standing without a preacher bench?: You can perform it standing without a preacher bench, though the preacher bench offers more isolation and control for better muscle targeting.
Q: Why does this feel harder than regular curls?: With the palms down, the biceps cannot help turn the forearm and its tendon wraps around the radius, so it contributes less and the brachialis and brachioradialis carry more of the load. Your grip and wrist extensors also have to hold the bar level, so most lifters use noticeably less weight than on a regular preacher curl.
Q: Does the reverse grip work the forearm harder than a regular curl?: Not in the way most people expect. A study of competitive bodybuilders doing standing cable curls found the brachioradialis slightly less active with a palms-down grip than with a palms-up grip, while biceps activity dropped more. The forearm takes a bigger share of the work because the biceps does less, and the wrist extensors work to keep the hands level.
Q: Should my arms go fully straight at the bottom?: Lower until your elbows are almost straight, keeping a slight bend and tension in the arms. Dropping into a locked or overextended elbow on the pad moves the strain from the muscles to the front of the elbow.
Q: Is it okay to use an EZ bar instead?: Yes, an EZ bar is often more comfortable on the wrists while still effectively targeting the same muscles.