METHODS. : Active cervical flexion, extension, right and left lateral flexion and rotation were measured in 100 healthy volunteers.

方法：100位健康志愿者在体测量颈椎屈伸、左右侧弯和旋转。

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The splenius capitis muscle was found to be significantly different for flexion, left anterolateral flexion, and left lateral flexion.

头颈夹肌在前屈、左前侧屈、左侧屈时具有显著的差异。

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