Conolusions the incidence of lumbar disorders in crew is related to the special work environment on board, the length of service in those environments, and the crew's height.
Lumbar magnetic resonance imaging was conducted with quantitative or qualitative assessments of disc signal, bulging, and height narrowing at each lumbar level.
腰椎磁共振定性和定量评估间盘信号，膨出，和各个腰椎水平的高度狭窄。
3
In the crew on board, the incidences of lumbar disorders in the higher height group, the engineman group, and longer service group were higher than those in the other groups.