俯卧位下半身无支撑后伸 肘支撑位俯卧属于颈椎操(The lower body of the prone position is unsu
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俯卧位下半身无支撑后伸、肘支撑位俯卧属于颈椎操(The lower body of the prone position is unsupported and extended, and the prone position of the elbow support position belongs to cervical spine exercises)

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