弯举时手腕和前臂疼痛（问Jeff！）

摘要

哑铃弯举时手腕和前臂疼痛是一个常见问题，其根源在于前臂的解剖结构以及错误的弯举技术。疼痛通常发生在手腕的尺侧，原因是尺骨与腕骨之间的软骨盘受到挤压。通过两种实用的改进方法，无需完全放弃弯举动作即可解决这一问题。

要点

• 前臂由两根骨骼组成——桡骨（较长）和尺骨（较短）——三角纤维软骨复合体（TFCC）软骨盘填补了尺骨与腕骨之间的长度差
• 在进行大重量杠铃弯举时，训练者常借助借力动作——前摆手肘并调动胸肌发力——以举起更大的重量，这会在手腕处产生不必要的扭矩
• 这种扭矩迫使手腕同时进行旋后和向下受压，将软骨盘夹挤在尺骨与腕骨之间
• 反复挤压该软骨盘会造成磨损，长期可能导致永久性软骨损伤
• 即便是毫无疼痛症状的人，也可以通过将手腕向后弯曲、翻转朝下并向下拉伸来重现这种不适感，这证明了特定体位下的应力会引发该症状
• 改进方法一： 减轻重量，以保持更严格的动作规范，在整个弯举过程中保持手腕处于中立位
• 改进方法二： 改用 EZ弯举杆，其半旋后的握持角度可显著减少动作过程中的扭矩和软骨盘压力

动作详解

杠铃弯举

• 目标肌肉： 肱二头肌（主要发力肌），前臂稳定肌群协同参与
• 正确动作要点：
  • 全程保持手腕中立且伸直
  • 避免手肘前移或内收以借助胸肌发力
  • 不借助惯性或身体借力来完成动作
• 常见错误：
  • 使用过大重量并以身体摆动代偿
  • 在弯举顶端手腕过度后伸或被迫过度旋后
  • 夹紧胸肌并向内驱动手肘，将不必要的扭矩传导至腕关节

EZ弯举杆替代方案

• 目标肌肉： 肱二头肌（与杠铃弯举相同）
• 主要优势： 倾斜的握角使手腕处于半旋后的更自然位置，减少对尺侧软骨盘的应力
• 当手腕疼痛影响杠铃弯举时，推荐作为直接替代方案

相关概念

• barbell curl
• EZ curl bar
• wrist anatomy
• forearm supination
• triangular fibrocartilage complex
• body English
• wrist neutral position
• cartilage compression

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English Original 英文原文

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

Mentioned Concepts

• barbell curl
• EZ curl bar
• wrist anatomy
• forearm supination
• triangular fibrocartilage complex
• body English
• wrist neutral position
• cartilage compression