Overview

The barbell standing back wrist curl, also known as the barbell wrist curl (palms up), is an isolation exercise targeting the forearm flexors to build wrist flexion strength, grip power, and muscle thickness. Performed standing with an underhand grip and barbell behind the thighs, it emphasizes controlled wrist flexion, complementing extensor work for balanced forearm development.​

Target Muscle Groups

• Primary: Flexor digitorum superficialis/profunda, Flexor carpi radialis/ulnaris, Palmaris longus

• Secondary: Brachioradialis, Forearm flexors, Finger flexors​

How to Perform Barbell Standing Back Wrist Curl

Setup

1. Stand with feet shoulder-width apart, knees slightly bent for stability.

2. Hold a barbell with an underhand grip (palms facing up), hands shoulder-width apart.

3. Position the barbell behind your thighs or glutes, allowing wrists to extend freely over your fingers.

4. Keep elbows close to body, shoulders relaxed, and core engaged.​

Execution Steps

1. Start with wrists fully extended downward (barbell resting on fingers).

2. Curl wrists upward by flexing them, lifting the barbell toward your forearms.

3. Squeeze forearm flexors at the top for 1-2 seconds, keeping forearms stationary.

4. Slowly lower the barbell back to full extension with control.

5. Repeat for desired reps with smooth, deliberate tempo.​

Tips for Proper Form

• Use lighter weights to maintain strict wrist-only movement.

• Keep upper arms and elbows fixed; avoid swinging.

• Focus on full range: complete flexion and extension.

• Breathe out during curl up, inhale on lowering.

• Higher reps (15-25) optimize forearm endurance and growth.​

Common Mistakes to Avoid

• Using body momentum or hip thrusting.

• Allowing elbows to flare or rise.

• Incomplete wrist extension at bottom.

• Gripping too tightly, reducing flexor isolation.

• Rushing reps; emphasize slow negatives.​

Benefits

• Builds powerful forearm flexors for superior grip strength.

• Enhances wrist stability for heavy pulling exercises.

• Promotes balanced forearm development with extensors.

• Improves finger strength for sports and daily tasks.

• Visible muscle gains in lower arm thickness.