He Xue, Li Zishuai, Tang Xunhui, Zhang Lijun, Wang Li, He Yongjun, Jin Tianbo, Yuan Dongya
Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang Health Treatment Center, Kang Cheng Jun Jian International Health City Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, Xi'an, Shaanxi, China.
Medicine (Baltimore). 2018 Jun;97(25):e11152. doi: 10.1097/MD.0000000000011152.
Significant changes in body composition are known to occur with aging. The aim of the present study was to provide a normative reference of body composition and to investigate age and sex-related differences in healthy subjects by multifrequency bioelectrical impedance analyzer (BIA).A cross-sectional study was conducted on a sample of 3451 healthy Chinese adults, 1611 males and 1840 females. The volunteers were enrolled in 5 different age bands (18-30, 31-40, 41-50, 51-60, 60+). All subjects were measured for weight and height and submitted to BIA, to determine body composition. Body composition measures accounted for differences between men and women.A decrease in fat-free mass and increase in percent body fat was observed with aging, although the phenomenon was proved to be attenuated in women. The central and visceral redistribution of fat mass was also shown along lifetime.This study is a report on body composition of healthy subjects, to be used as an important data for future investigations and differences between nationalities and countries.
众所周知，身体成分会随着年龄增长而发生显著变化。本研究的目的是提供身体成分的规范性参考，并通过多频生物电阻抗分析仪（BIA）研究健康受试者中与年龄和性别相关的差异。
对3451名健康中国成年人（1611名男性和1840名女性）进行了横断面研究。志愿者被纳入5个不同年龄组（18 - 30岁、31 - 40岁、41 - 50岁、51 - 60岁、60岁以上）。所有受试者均测量了体重和身高，并接受BIA检测以确定身体成分。身体成分测量考虑了男女之间的差异。
随着年龄增长，去脂体重减少，体脂百分比增加，不过这一现象在女性中被证明有所减弱。脂肪量的中心性和内脏性重新分布也贯穿一生。
本研究是关于健康受试者身体成分的报告，可作为未来研究以及不同民族和国家之间差异的重要数据。
