银川市中学生瘦体重分布  

Characteristics of fat-free mass among middle and high school adolescents in Yinchuan City

作　　者：董洋洋 蔡蓉蓉 马萍 杨清梅 贾磊娜 丁文清 DONG Yangyang;CAI Rongrong;MA Ping;YANG Qingmei;JIA Leina;DING Wenqing(School of Public Health and Management,Ningxia Medical University,Yinchuan(750004),China)

机构地区：[1]宁夏医科大学公共卫生与管理学院,银川750004

出　　处：《中国学校卫生》2021年第8期1216-1219,共4页Chinese Journal of School Health

基　　金：宁夏自然科学基金项目(2019AAC03083)。

摘　　要：目的了解银川市中学生瘦体重分布的年龄变化趋势和性别差异,为儿童青少年健康发育、预防慢性疾病和制定干预措施提供科学依据。方法于2017-2019年9-12月使用方便整群抽样的方法,随机抽取银川市1 175名12~18岁中学生进行问卷调查、体格检查,采用生物电阻抗分析法(bioelectrical impedance analysis, BIA)测量其体成分。结果男生总瘦体重(fat free mass, FFM)和总瘦体重率(fat free mass percentage, FFMP)随年龄增加而增加(39.78~52.63 kg, 77.51%~83.80%),身体各部分FFM、FFMP年龄趋势同总趋势,且均高于女生(P值均<0.05);女生FFM 15岁达峰值40.96 kg, 15~18岁略有下降,身体各部分FFM年龄趋势同总FFM趋势,FFMP随年龄增加呈下降趋势(由75.63%下降至71.91%)、左右下肢FFMP的年龄趋势同FFMP,左右上肢FFMP随年龄增加而增加,躯干FFMP在15岁达最低值29.93%,15~18岁上升(P值均<0.05)。结论银川市12~18岁中学生瘦体重随年龄变化特点及性别差异,符合其生长发育特征。Objective To elucidate age-and sex-specific characteristics in fat-free mass(FFM)among middle and high school adolescents in Yinchuan City,China,and to provide a scientific basis for healthy development,chronic disease prevention and intervention in children and adolescents.Methods Using a convenient cluster sampling method,1175 middle and high school adolescents,aged 10 to 20 years old,from Yinchuan,China,were selected to participate in a questionnaire survey and physical examination,which involved body composition by bioelectrical impedance analysis(BIA).Results For adolescents aged 12 to 18 years,FFM and the fat-free mass percentage(FFMP)of boys increased with age(from 39.78 to 52.63 kg;77.51%to 83.80%,respectively),the age trends of the FFM and FFMP of body parts were in the similar pattern,and were significantly higher than those of girls(all P<0.05).In girls,the FFM reached a peak of 40.96 kg at 15 years old,and decreased slightly between the ages of 15 and 18 years,the age trends of the FFM of body parts were in the similar pattern,and the FFMP decreased with age(from 75.63%to 71.91%).In addition,in girls,the age trends of the FFMP of left and right legs were the same as the general trend,while the FFMP of left and right arms increased with age.The FFMP of the trunk reached a minimum of 29.93%at 15 years old and increased from 15 to 18 years old(all P<0.05).Conclusion For middle and high school adolescents aged 12 to 18 years old in Yinchuan City,China,the distribution of FFM changed in accordance with age and gender differences,in accordance with the characteristics of the adolescents'growth and development.

关 键 词：体重 年龄因素 性别因素 生长和发育 青少年 

分 类 号：R444[医药卫生—诊断学] R179[医药卫生—临床医学]