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通过对重庆市区２２９９例７～１９岁人体胸深（胸矢状径）横断面进行调查，对胸深与肺活量的关系同胸围与肺活量的关系进行比较，结果表明胸深发育符合一般规律，与肺活量存在相关。鉴于胸深指标定位方便、工具操作简单且精确，是一项值得深入研究和开发应用的体检项目。
Through the investigation of 2299 cases of 7- to 19-year-old human thoracic depth (breast sagittal diameter) cross-section in Chongqing, the relationship between chest depth and lung capacity was compared with the relationship between chest circumference and lung capacity. The results showed that chest deep development met the general laws. There is a correlation with lung capacity. In view of the convenient positioning of chest depth indicators and the simple and accurate operation of tools, it is a medical examination project worthy of in-depth research, development and application.