Objective To Study the stress distribution of the lower cervical spine in the flexion and extension movement.

目的：探讨下颈椎屈伸运动对其应力分布的影响。

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Elbow flexion, wrist flexion and extension, and metacarpophalangeal joint flexion and extension were not impaired.

但是肘关节屈曲、腕关节的屈曲和伸展、掌指关节的屈曲和伸展未受影响。

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Repeated traction and compression on the ulnar nerve during elbow flexion and extension is the anatomical foundation of ulnar nerve compression at the elbow.

结论：肘关节反复屈伸时尺神经不断被牵拉和压迫是造成肘部尺神经卡压的解剖学基础。

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