
兰州市汉族成人骨强度指数特点及其与体成分的关系
Characteristics of bone strength index and its relationship with body composition in Lanzhou Han nationality adults
目的 调查分析兰州市汉族成人骨强度指数特点及其与体成分之间的关系,为该地区骨质疏松的预防和干预提供参考依据。 方法 采用超声骨密度仪及生物电阻抗分析仪测量2291例(男1021例,女1270例)兰州市汉族成人右足跟骨骨强度指数及体成分等相关指标,采用多元逐步回归法分析骨强度指数与体成分各指标之间的关系。 结果 兰州市汉族成人骨强度指数随年龄增长而持续降低,峰值骨量出现在20~30岁。其中男性20~30岁和50~60岁两个年龄段骨强度指数下降较快,而女性50岁后骨强度指数迅速下降;兰州市汉族男性各年龄组骨强度指数均高于同龄组女性。与采用相同方法测量其他民族、地区人群有关指标进行比较得知,兰州市汉族成人骨强度指数值和兰州汉族女性峰值骨量值均较低。多元线性回归分析显示,肌肉含量、皮下脂肪、身体质量指数与骨强度指数呈正相关,内脏脂肪与骨强度指数呈反比。 结论 兰州市汉族成人骨强度指数和兰州市汉族女性峰值骨量均处于较低水平,且峰值骨量出现的年龄较早,50岁以后女性是骨质疏松的危险人群;肌肉量、皮下脂肪量以及BMI是骨质疏松发病的保护性因素,而内脏脂肪量是骨质疏松发病的危险因素。
Objective To analyze the change of bone strength index (SI) and its relationship with body composition (BC) in Lanzhou Han nationality adults and to provide reference data for prevention and diagnosis of osteoporosis (OP). Methods Ultrasonic bone mineral density meter and Bioelectric impedance technique were used to test the bone strength index of right calcaneus and body composition. A total of 2291 Han nationality adults in Lanzhou(1021 males,1270 females) were sampled. The association between bone strength index and body composition was tested by multiple linear regressing analysis. Results The bone strength index of Lanzhou Han nationality adults presented tendency of decrease along with age, and the peak of bone mass (PMB) occurred at 20-30 years old. The SI in male decreased rapidly between 20-30 and 50-60 years old, and the SI in female fell fast beyond 50 years old. The SI in male was higher than female at each age group. Compared with other nationalities by using the same method, the mean values of SI and PMB were lower in Lanzhou Han nationality adults and PMB in Lanzhou Han female, respectively. According to the analysis of multiple linear regressing between SI and BC,both muscle mass and subcutaneous fat mass, and body mass index(BMI) were positively associated with SI, visceral fat mass was negatively correlated with SI. Conclusion The SI and PMB values are respectively lower in Lanzhou Han nationality adults and Lanzhou Han female. The PMB appeares early in youth. Females above 50 years old are a higher risk population of OP. Muscle mass, subcutaneous fat mass and BMI are protective factors for OP while visceral fat mass is a factor of risk for OP.
兰州 / 汉族 / 骨强度指数 / 骨质疏松症 / 体成分 / 生物电阻抗分析 / 成人
Lanzhou / Han nationality / Bone strength index / Osteoporosis / Body composition / Bioelectric impedance technique / Adult
甘肃汉族成人体成分与糖尿病、高血压和冠心病的相关性研究;蒙古族、藏族、回族、维吾尔族及汉族青年体质现状研究;解剖学教学中融入医学人文教育的研究与实践
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