Objective. To investigate the effect of body position and axial load of the lumbar spine on disc height, lumbar lordosis, and dural sac cross-sectional area (DCSA).

• 目的：研究体位和轴向负荷对腰椎间盘厚度、腰椎前凸曲线和硬脊膜囊横断面积的作用。