Intermediate

Barbell Preacher Curl

A straight bar keeps the forearms fully supinated, biasing the biceps hard and letting you load heavier than most single-arm variations. The preacher pad enforces strict form, so this becomes a potent mass builder when your wrists tolerate the flat grip. Program it as a main biceps movement, being mindful of the demanding bottom stretch.

Equipment
Barbell, Bench
Body part
Biceps
Type
Strength
Browse by movement
Elbow Flexion
Muscles worked
Target
Biceps Brachii Long Head, Biceps Brachii Short Head
Secondary
Brachioradialis

How to do it

  1. 1

    Seat yourself at the preacher station with the pad snug under your armpits.

  2. 2

    Grasp a straight barbell shoulder-width with palms facing up.

  3. 3

    Extend your arms until nearly straight, keeping the upper arms flat on the pad.

  4. 4

    Curl the bar up toward your shoulders, driving with the biceps.

  5. 5

    Pause briefly at the top, then lower slowly to the stretched start position.

  6. 6

    Keep your seat down and avoid rocking to move the bar.

Tips

  • Ease into the bottom range; the straight-bar supinated stretch is tough on the elbows.
  • If your wrists complain, switch to an EZ bar for the same movement.
  • Keep upper arms pinned to the pad so the biceps do the work, not your shoulders.

Variations

Common mistakes

  • The bottom stretch gets dropped into quickly instead of eased into, and a fully supinated wrist under a dead-straight bar is the least forgiving position in the whole preacher family for that.
  • Seeing more weight fit on a straight bar than an EZ bar tempts people to load up before their wrists are ready for the flatter grip.
  • The seat rocks forward off the pad to help start heavy reps, turning a strict isolation exercise into a half-standing pull.
  • Grip width drifts wider than shoulder-width to feel more comfortable, but that also changes the bar path and the stretch the exercise is built around.
  • Once the wrists start aching mid-set, finishing the workout on the same straight bar instead of switching to the EZ bar for the remaining sets just compounds the irritation.

Frequently asked

How many sets and reps of the barbell preacher curl should you do when you are new to the exercise?
Because the straight bar allows more load than an EZ bar, a beginner-to-intermediate lifter can work up to 3 sets of 6 to 8 reps at a weight that still allows a controlled lowering into the stretch. Back off reps before you ever rush the bottom position.
What can replace the barbell preacher curl if your wrists don't tolerate it?
The EZ-bar preacher curl trains the same muscles with an angled, more comfortable grip, or a dumbbell preacher curl removes the straight-bar wrist demand entirely.
What is the barbell preacher curl good for, and when should you switch variations?
It's a heavier, strength-and-mass-focused preacher option once your wrists tolerate a flat grip. The moment wrist or elbow discomfort shows up, the EZ-bar version delivers the same training effect without that cost.

Related exercises

Other movements among FitRay's 2,000+ exercises that load the same target muscle — same equipment and level first.

All Biceps exercises