一品红作弯，是指在生长期间人工将枝条扭绑成左右盘旋的螺旋状。

Poinsettia makes a turn, it is to point to to the helix record that ties the left and right sides circle seizes branch artificially during growing.

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您应该肘部弯转90度，双臂前后摆动(旋转，以肩部为中心)，而不是左右摆动。

Your arms should be at a 90 degree Angle and should be moving forward and back (rotating at the shoulder), not side to side.

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方法：100位健康志愿者在体测量颈椎屈伸、左右侧弯和旋转。

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

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