不正確的抓握姿 improper grip position

 
Avoid thumb fl exion in combination with wrist ulnar deviation and wrist flexion. Look at patient’s
tools at work, and have them bring them to therapy if possible. A worksite evaluation may be necessary
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用上圖的方式拿鎚子或是菜刀，就是離酸痛不遠了。
避免手腕同時彎曲加上尺側偏移的動作，如上圖。