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目的探讨饮食、运动等因素对大学生骨密度的影响。方法用问卷调查方法获得学生饮食及运动情况，用单光子骨密度仪测定骨密度（ＢＭＤ）及骨矿物含量（ＢＭＣ）。结果大学生男性桡骨ＢＭＣ显著高于女性（Ｐ＜０．０５），锻炼强度及锻炼频数与ＢＭＤ和ＢＭＣ呈显著性正相关（Ｐ＜０．０１），经常摄入豆类制品者尺骨骨密度和尺骨、桡骨骨矿物含量增高（Ｐ＜０．０５），表明经常摄入豆制品有利于骨的形成，但膳食中也可能存在许多影响钙吸收的因素。结论饮食和运动可影响ＢＭＤ和ＢＭＣ。
Objective To investigate the effects of diet, exercise and other factors on the bone mineral density of college students. Methods Students’ diet and exercise status were obtained by questionnaire survey. Bone mineral density (BMD) and bone mineral density (BMC) were measured by single photon bone densitometry. Results The BMC of college students was significantly higher than that of women (P <0.05). The exercise intensity and exercise frequency were positively correlated with BMD and BMC (P <0.01). The bone mineral density Ulnar, radial bone mineral content increased (P <0.05), indicating that regular intake of soy products is conducive to the formation of bone, but the diet may also have many factors that affect calcium absorption. Conclusion Diet and exercise can affect BMD and BMC.