Effect of age on body composition in healthy Beijing women  

作　　者：陈蓉 林守清 林霞 陈艳 杨秋红 周永 张颖 

机构地区：[1]Department of Obstetric & Gynecology,Peking Union Medical College Hospital,Peking Union Medical College,Chinese Academy of Medical Sciences

出　　处：《生殖医学杂志》2011年第B12期13-18,共6页Journal of Reproductive Medicine

摘　　要：Objective:To explore the effect of age on body composition in healthy Beijing women. Methods:We measured body composition with dual-energy X-ray（GE Lunar Prodigy） in 316 healthy Beijing females aged 20 to 74 years（5-7 women per age）.Parameters provided by the software were as following:total body bone mineral content（BMC）,lean mass（LM）,fat mass and fat mass percentage（FM%）.Local regions measured included arm,leg,trunk,android region and gynoid region.Body mass index（BMI）,fat mass index（FMI）,free fat mass index（FFMI） and A/G were calculated.Volunteers were assigned to 6 groups according to age by every ten years a group. Results:BMC peaked during the 4th decade,LM peaked during the 5th decade,with a decline of 18.1%and 5.2%respectively at age 74 years.Total body fat mass and FM%showed a general increase with aging throughout the studied age range.Total body fat mass increased from（16±5） kg at age 20-29 years to（24±6）kg at age 70-74 years,while FM%increased from 31.3%to 39.5%.All local region FM%increased with aging at different extents. Android region FM%showed the largest raise extent（32.2%）.BMI increased gradually from 21.1 kg/m2 at age 20-29 years to 26.1 kg/m2 at age 70-74 years.FMI changed more obviously than FFMI.A/G increased from 0.85 at age 20-29 years to 1.02 at age 70-74 years.Different menstrual status in women of 40-59 years had obvious effect on A/G and BMC（P<0.05）,while it had no significant effect on BMI,body weight and waist circumference （P>0.05）. Conclusion:Aging has a great effect on body composition distribution in healthy Beijing women.Objective： To explore the effect of age on body composition in healthy Beijing women. Methods： We measured body composition with dual-energy X-ray （GE Lunar Prodigy） in 316 healthy Beijing females aged 20 to 74 years （5-7 women per age）. Parameters provided by the software were as following： total body bone mineral content （BMC）, lean mass （LM）, fat mass and fat mass percentage （FM%）. Local regions measured included arm, leg, trunk, android region and gynoid region. Body mass index （BMI）, fat mass index （FMI）, free fat mass index （FFMI） and A/G were calculated. Volunteers were assigned to 6 groups according to age by every ten years a group. Results： BMC peaked during the 4^th decade, LM peaked during the 5^th decade, with a decline of 18. 1% and 5.2% respectively at age 74 years. Total body fat mass and FM% showed a general increase with aging throughout the studied age range. Total body fat mass increased from （16±5） kg at age 20-29 years to （24±6）kg at age 70-74 years, while FM% increased from 31.3% to 39.5%. All local region FM% increased with aging at different extents. Android region FM% showed the largest raise extent （32.2%）. BMI increased gradually from 21.1 kg/m2 at age 20-29 years to 26.1 kg/m2 at age 70-74 years. FMI changed more obviously than FFMI. A/G increased from 0.85 at age 20-29 years to 1.02 at age 70-74 years. Different menstrual status in women of 40-59 years had obvious effect on A/G and BMC （P〈0.05）, while it had no significant effect on BMI, body weight and waist circumference （P〉0. 05）.Conclusion： Aging has a great effect on body composition distribution in healthy Beijing women.

关 键 词：身体健康 组成分布 年龄 妇女 北京 质量指数 体重指数 骨矿物含量 

分 类 号：S829.3[农业科学—畜牧学] O631.6[农业科学—畜牧兽医]