成年人腰臀比和静态肺容量的关系

Relationship between waist to hip ratio and static lung volumes in adults

目的:研究成年人腰臀比(WHR)和静态肺容量的关系。方法:2008年7月至10月通过问卷和体检抽取黑龙江省部分地区19-81岁健康成年受试者1307人,其中男性372人,女性935人,测量其身高、体重、腰臀比、肺功能和身体成分,以男性WHR≥0.86、女性WHR≥0.82为中心性肥胖进行分组,分析WHR和静态肺容量关系。结果:无论性别、腰臀比有随年龄、体重指数(BMI)增长而增大的趋势(P<0.01),中心性肥胖组的脂肪含量和体脂百分比都高于腰臀比正常组(P<0.01)。无论性别,WHR皆与补呼气量(ERV)独立负相关(P<0.05),中心性肥胖组ERV显著低于WHR正常组(P<0.05):男性下降11%,女性下降8%(P<0.05)。男性WHR与深吸气量(IC)独立正相关(P<0.05),中心性肥胖组IC较WHR正常组上升约6%(P<0.05)。女性WHR与每分通气量(MV)正相关(P<0.05),中心性肥胖组VT,MV较WHR正常组分别上升7%、6%(P<0.05)。结论:腰臀比与ERV独立负相关。腰臀比升高是肺功能损伤的危险因素。腰臀比升高男性IC上升,女性MV上升可能与代偿ERV下降导致的动脉血氧分压有关。

AIM： The study is designed to probe for the relationship between waist to hip ratio （WHR）and static lung volumes of adults. METHODS ： In July - October 2008, 1 307 healthy adults （372 males and 935 females） were selected in Heilongjiang province by means of questionnaire and physical examination. The height, weight, WHR, fat mass, percentage body fat and lung function were measured, and then grouped according to the standard of classification of WHR（central obesity male WHR ≥ 0. 86, female ≥ 0. 82）for analysis of the relationship between WHR and static lung volume. RESULTS： WHR was found, regardless of sex, to tend to go up with the increase in age and BMI（P 〈0. 01 ）, and both the fat mass and percentage body fat of the central obesity group were higher than those in the group with normal WHR（P 〈 0. 01 ）. An independent negative correlation was found （P 〈 0. 05）, also regardless of sex, between the WHR with expiratory reserve volume（ERV）in all these adults. ERV in central obesity group was lower than that in the group with normal WHR（P 〈0. 05）. Compared to the normal group, ERV in the central obesity group decreased by 11% for males and 8% for females（P 〈0. 05）. However, with regard to the relationship between WHR and VT, IC, MV, and VC, gender differences were found. For the males, a significant independent positive correlation was observed between WHR and IC （ P 〈 0.05）, with IC of the central obesity group 6% higher than that in the group with normal WHR（P 〈 0. 05）. For the females, significant independent positive correlation was found between WHR and MV （P 〈 0. 05）, with the VT and MV of the central obesity group 7% and 6% higher（P 〈 0. 05）, respectively, than that in the group with normal WHR. CONCLUSION ： WHR is in an independent negative correlation with ERV. The elevation of WHR may play a role in the impairment of respiratory function. Its occurrence is accompanied by a rise of IC for the male and a rise of MV for the female. These changes in the two genders could be associated with the decrease in arterial oxygen tension caused by the decrease of ERV.