Palms Down Barbell Wrist Curl Over Bench

The palms-down barbell wrist curl, commonly called the reverse wrist curl, is a forearm isolation exercise performed with an overhand grip and the forearms braced on a bench. Because the palms face down, the movement extends the wrist against resistance, which targets the wrist extensor muscles on the back of the forearm rather than the flexors worked by a standard palms-up wrist curl. It's a low-load, high-rep exercise commonly used to balance forearm development and support grip and elbow health.

Muscles Targeted

• Primary: Wrist extensors (extensor carpi radialis longus and brevis, extensor carpi ulnaris)
• Secondary: Extensor digitorum, brachioradialis
• Tertiary: Finger and grip flexors (isometric stabilizers)

Starting Position

Sit at the end of a flat bench and rest your forearms along the top of your thighs or the bench pad, with your wrists and hands hanging just past your knees. Grip a light barbell with an overhand (palms-down) grip, hands about shoulder-width apart. Let the bar roll down toward your fingers, allowing the wrists to flex fully under the weight before beginning the curling motion.

Execution Steps

1. Let the bar settle into full wrist flexion at the bottom, keeping the forearms pinned to the bench or thighs
2. Curl the wrists upward by extending them, lifting the bar using only wrist movement
3. Raise the bar as high as your wrist mobility allows, without lifting your forearms off the support
4. Squeeze at the top of the extension for a brief pause to maximize contraction
5. Lower the bar back down under control to the fully flexed starting position
6. Repeat for the desired number of reps, keeping the tempo slow throughout

Form Cues

• Keep the forearms fixed: All movement should come from the wrist joint, not the elbows or shoulders rolling the bar
• Use a light load: The wrist extensors are small muscles - too much weight forces you to cheat with forearm or elbow movement
• Move through a full range: Let the wrist fully flex at the bottom and fully extend at the top each rep
• Control both directions: The lowering phase should be just as deliberate as the lifting phase to maximize time under tension
• Keep grip pressure moderate: Gripping too hard can fatigue the fingers before the extensors are fully worked

Common Mistakes

• Using too much weight: Because the wrist extensors are relatively weak, excess load causes the forearms to lift off the bench and turns the exercise into a forearm curl. Drop the weight and isolate the wrist.
• Bouncing the bar at the bottom: Letting the bar drop and rebound out of full flexion reduces muscle tension and increases strain on the wrist joint. Lower it under control every rep.
• Lifting the elbows or forearms off the support: This recruits the biceps and shoulders instead of isolating the forearm. Keep the forearms pressed against the bench throughout.
• Using a grip that's too narrow or too wide: An uneven or awkward hand spacing can create uneven wrist loading. Keep hands roughly shoulder-width apart with even spacing.
• Training with the same volume as larger muscle groups: The wrist extensors fatigue and recover differently than major muscle groups. Keep loads light and prioritize control over heavy weight.

Variations

• Palms-up barbell wrist curl: Targets the wrist flexors instead of the extensors, useful for balanced forearm development
• Dumbbell reverse wrist curl: Unilateral version that allows independent loading and range of motion for each arm
• Cable reverse wrist curl: Provides constant tension through the full range, unlike the changing use of a free barbell
• Reverse wrist curl with a resistance band: A joint-friendly, low-load option well suited for warm-ups or rehab work

Tips for Progression

• Increase reps before adding weight - build up to 15-20 controlled reps before progressing load
• Add small weight increases (2.5-5 pounds) since the wrist extensors adapt slowly compared to larger muscles
• Slow the eccentric lowering phase to 3-4 seconds to increase time under tension without adding weight
• Pair with palms-up wrist curls in the same session to keep flexor and extensor strength balanced

Training Notes

Include the palms-down barbell wrist curl 2 times per week as a forearm accessory movement, typically for 2-3 sets of 12-15 reps with light weight. Rest 45-60 seconds between sets, since the isolated muscle group recovers quickly. It fits well at the end of an arm or pull session, paired with palms-up wrist curls, to build balanced forearm strength and support grip endurance and elbow joint health.