How to Do Zottman Curls: Form, Mistakes and Progressions

The Zottman curl looks like a regular dumbbell curl until the top of the rep. That is where the exercise changes. You turn your forearms from a palms-up grip to a palms-down grip, then lower the dumbbells slowly while your forearms hold your wrists straight.

That grip change makes the exercise a simple way to train your biceps and your grip together. The biceps drive the curl and control the lower, while the forearm flexors grip the dumbbells and hold your wrists steady through the turn. Start lighter than you would for a regular curl.

Muscles Worked

Primary muscle: the biceps, the muscle at the front of your upper arm. The biceps bend your elbow as the dumbbells rise, then lengthen under control as you lower them with your palms down.

Secondary muscle: the forearm flexors, on the palm side of your forearm. They grip the dumbbells for the whole set and hold your wrists steady as you turn your palms at the top and lower with them facing down, which is why your forearms can burn along with your biceps.

What the turn changes: the turn changes your grip, not the main muscle doing the work. Your biceps bend your elbow on the way up and control it on the way down, and the palms-down lower asks your forearms to hold the dumbbells level with your wrists straight.

Step-by-Step: How to Do a Zottman Curl

1. Set your stance. Stand tall with your feet about hip-width apart and your knees soft, holding a dumbbell in each hand with your arms straight at your sides. Keep your ribs down, chest tall, shoulders down and back, wrists straight, and palms facing forward.
2. Curl up palms-up. Breathe out and curl the dumbbells toward your shoulders with your palms facing up, without letting your elbows drift forward. Keep your upper arms at your sides and your body still: no leaning back or swinging.
3. Turn at the top. When the dumbbells are near the front of your shoulders, pause briefly, then turn your forearms until your palms face down. Keep your wrists straight and the dumbbells close instead of letting them drift away from your body.
4. Lower palms-down. Breathe in and lower the weights slowly, over about two seconds, with your palms down and your wrists straight, until your arms are straight or nearly straight. Never let the dumbbells drop.
5. Reset cleanly. At the bottom, turn your palms forward again before the next curl. If your wrists wobble or your elbows swing, go lighter.

Common Mistakes

Using Too Much Weight

What it looks like: The curl goes up, but the palms-down lower turns into a fast drop.

Why it's a problem: The slow palms-down lower is half of the exercise. If you cannot lower slowly, the dumbbells are too heavy.

The fix: Choose a load you can lower slowly, over about two seconds, with your palms down and your wrists straight.

Turning Your Palms at the Wrong Time

What it looks like: You turn the palms down before the curl reaches the top, or keep them up until the dumbbells are almost back at your thighs, or skip the turn altogether.

Why it's a problem: The way up stops being a palms-up curl or the way down stops being a palms-down lower, and the move drifts back into a regular curl.

The fix: Curl all the way up with your palms up, turn them only at the top, then lower with your palms down and turn them forward again at the bottom.

Swinging the Torso

What it looks like: The hips drive forward or the shoulders rock back to start the rep.

Why it's a problem: Swinging lets your body lift the dumbbells instead of your biceps, and the turn gets harder to control.

The fix: Brace before each rep and stop the set when you need to swing to keep going.

Letting the Wrists Bend

What it looks like: The knuckles fall toward the floor during the lower, or the wrists bend as you turn your palms.

Why it's a problem: A bent wrist puts the load on the joint instead of a firm, straight grip.

The fix: Keep the wrist long and straight, in line with your forearm, and go lighter if it bends. Any wrist pain means stop.

Elbows Drifting or Shoulders Shrugging

What it looks like: Your elbows swing forward or flare out away from your ribs, or your shoulders creep up toward your ears.

Why it's a problem: The shoulders start helping with the lift and the curl gets sloppy.

The fix: Keep your elbows close to your sides and your shoulders down and back. A slight forward drift at the very top is fine.

Zottman Curl Variations: Regressions and Progressions

The FitCraft app's version is the standing Zottman curl with both dumbbells curling together, rated Expert. The versions below make it easier or harder.

Seated Zottman Curl

Sit tall on a bench and perform the same palms-up curl and palms-down lower. The seated setup reduces body swing and helps you focus on the turn.

Single-Arm Zottman Curl

Train one arm at a time, or alternate arms. This version is useful when one arm turns more smoothly than the other or when you need to practice the timing before curling both together.

Slow-Lowering Zottman Curl

Pause for a second at the top after you turn your palms down, then take about three seconds to lower. Stop the set as soon as your wrists bend or your elbows drift.

Heavier Zottman Curl

Go a little heavier only when you can still lower slowly with your palms down, your wrists straight, and your elbows at your sides.

Adjacent Curl Options

Use hammer curls, palms facing in the whole way with no turn, as an easier option; the app rates the alternating dumbbell hammer curl Intermediate. Use bicep curls for a simpler curl, drag curls to keep your elbows moving back as you curl, and twist curls for a grip turn without the palms-down lower.

When to Avoid or Modify Zottman Curls

Turning your grip under load makes a few situations worth checking first. A burn in your biceps or forearms is normal; any pain in your wrists, elbows, shoulders, lower back or neck means stop right away. Always consult your physician or a qualified physical therapist if you have pain, numbness, a recent injury, or post-surgical restrictions.

• Wrist pain, carpal tunnel symptoms, or tingling. Have it checked by a doctor or physical therapist before you curl, and ask them which arm exercises suit you. During any set, wrist pain, numbness or tingling means stop.
• Elbow tendinopathy or bicipital tendon irritation. Get it assessed by a doctor or physical therapist before curling, and ask them when and how to return. Any elbow pain during a set means stop right away.
• Recent wrist, elbow, or shoulder surgery. Get clearance from your surgeon before any curl, and ask them or your physical therapist when and how to return to loaded arm work.
• Poor shoulder control during curls. If the upper arm swings or the shoulder rolls forward, rebuild strict curling with bicep curls first.
• Tired grip after heavy pulling. Do Zottman curls after your bigger lifts, or do fewer sets.

Related Exercises

• Same target muscle: Bicep curls and drag curls keep the focus on bending your elbow.
• Simpler grip: Hammer curls work the biceps and forearm flexors with your palms facing in the whole way and no turn.
• Grip turn: Twist curls turn the palms up as you curl, without the palms-down lower.
• Back of the arm: Tricep extensions straighten your elbow, the opposite job from a curl.
• For your upper back and shoulders: W raises, Y raises and pull-aparts.

How to Program Zottman Curls

Ratamess et al. (2009), the ACSM position stand on resistance training progression, supports matching sets, reps, rest, and frequency to training level. For Zottman curls, pick dumbbells you can lower slowly with your palms down and your wrists straight.

Place Zottman curls late in an upper-body session. Do them after rows, pull-ups or other bigger lifts, so your grip is fresh for those.

Good form matters more than the rep target. End the set when you cannot control the palms-down lower, when your wrists bend, or when your elbows drift away from your sides.