Summary
Wrist and forearm pain during barbell curls is a common issue rooted in the anatomy of the forearm and poor curling technique. The pain typically occurs at the ulnar side of the wrist due to compression of the cartilaginous disk between the ulna and carpal bones. Two practical fixes can resolve this problem without giving up curling movements entirely.
Key Points
- The forearm is made up of two bones — the radius (longer) and the ulna (shorter) — with a triangular fibrocartilage complex (TFCC) disk filling the length gap between the ulna and the carpal bones
- During heavy barbell curls, lifters often use body English — swinging the elbows forward and recruiting the pecs — to move more weight, which creates unwanted torque at the wrist
- This torque forces the wrist into simultaneous supination and downward compression, pinching the cartilaginous disk between the ulna and carpal bones
- Repeated compression of this disk can cause wear and potentially permanent cartilage damage over time
- Even pain-free individuals can reproduce the discomfort by bending the wrist back, turning it upside down, and pulling down — demonstrating how positional stress causes the sensation
- Fix #1: Reduce the weight to allow stricter form, keeping the wrists in a neutral position throughout the curl
- Fix #2: Switch to an EZ curl bar, which places the wrists in a semi-supinated position that significantly reduces torque and disk compression during the movement
Exercise Details
Barbell Curl
- Target muscles: Biceps (primary), with forearm stabilizers involved
- Proper form cues:
- Keep wrists neutral and straight throughout the movement
- Avoid letting elbows drift forward or inward to recruit the chest
- Do not use momentum or body English to lift the weight
- Common mistakes to avoid:
- Using too heavy a weight and compensating with body swing
- Allowing the wrists to bend into extension or forced supination at the top of the curl
- Squeezing the pecs and driving elbows inward, which transfers unwanted torque to the wrist joint
EZ Curl Bar Alternative
- Target muscles: Biceps (same primary target as barbell curl)
- Key benefit: The angled grip places the wrists in a semi-supinated, more natural position, reducing stress on the ulnar disk
- Recommended as a direct substitute when wrist pain prevents comfortable barbell curling