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。
Results: The movement of flexion, extension, lateral curvature and rotation had obviously differences between two groups.
结果：两者在前屈后伸、左右侧弯和左右旋转运动范围上有显著差异。
Results: The movement of flexion, extension, lateral curvature and rotation had obviously differences between two groups.
结果：两者在前屈后伸、左右侧弯和左右旋转运动范围上有显著差异。
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