Vanharanta H, Heliövaara M, Korpi J, Troup J D
Scand J Work Environ Health. 1987 Apr;13(2):146-9. doi: 10.5271/sjweh.2076.
Measurements made from plain lumbar radiographs were used to compare the size and shape of the lumbar vertebral canals between various categories of occupation and work load among 77 men and 118 women with a history of low-back pain. The mean anteroposterior foraminal diameters proved to be wider in female farm workers than in other women, especially in the vertebra L3 (17.1 versus 15.4 mm). However, the men who did heavy manual work had smaller anteroposterior foraminal diameters than the men whose work involved less physical labor (difference at L5 9.4 versus 10.8 mm). Female farm workers were found to have shorter interarticular distances than females in other occupational groups. In the men who reported working in stooped postures or reported lifting and carrying heavy objects at work, the interarticular distances were wider than in men who had no such exposures.
对77名有腰痛病史的男性和118名有腰痛病史的女性，通过腰椎X线平片测量来比较不同职业类别和工作量之间腰椎椎管的大小和形状。结果显示，女性农场工人的椎间孔前后径均值比其他女性更宽，尤其是在L3椎体（17.1毫米对15.4毫米）。然而，从事重体力劳动的男性椎间孔前后径比体力劳动较少的男性更小（L5椎体处差异为9.4毫米对10.8毫米）。研究发现，女性农场工人的关节间距离比其他职业组的女性更短。在报告工作时姿势弯腰或报告工作中搬运重物的男性中，关节间距离比没有此类工作经历的男性更宽。
