[The relationship between body fat percentage, waist-hip ratio and pulmonary ventilatory function among the adult females in Heilongjiang, in 2008].
OBJECTIVE
To examine the effect of body fat mass and fat distribution on pulmonary ventilatory function among the adult females.


METHODS
Based on the multistage cluster sampling principal, we selected 935 healthy adult females with ages of 19-81 years old in Heilongjiang province to conduct the study. Every 10-years old as a age group. Firstly obtain the basic situation through the questionnaire survey, and then measure the height, body weight, waistline, hip circumference, body composition and lung function. FVC, FEV1, PEF, FEF25%, FEF 50%, FEF 75% and MMEF were determined. This study also examined the relationships between percentage body fat (PBF), waist-hip ratio (WHR) and FVC, FEV1, PEF, FEF25%, FEF 50%, FEF 75%, MMEF.


RESULTS
PBF of subjects with ages of 19 - 29 years old and over 60 years old were (16.89 ± 5.34)% and (24.39 ± 6.83)%, WHR were 0.77 ± 0.05 and 0.88 ± 0.06, respectively. PBF and WHR tended to increase with age (F = 50.11, P value < 0.01). PBF obesity rates of subjects with ages of 19 - 29 years old and over 60 years old were 3.23% (7/217) and 43.75% (28/64), WHR obesity rates were 19.35% (42/217) and 85.94% (55/64) respectively. PBF obesity rate and WHR obesity rate tended to increase with age (χ(2) = 161.66, P value < 0.01; χ(2) = 159.61, P value < 0.01). PBF obesity groups compared with the normal groups, the former pulmonary ventilation function reduced significantly, of which FEF 50%, FEF 75% and MMEF decreased 2.61%, 19.44%, 10.28%, respectively. WHR obesity groups compared with the normal groups, the former pulmonary ventilation function reduced significantly, of which FEF 50%, FEF 75% and MMEF decreased 7.61%, 23.15%, 12.04%. After adjustment of age, height and body mass index (BMI), PBF was negatively correlated with FVC, FEV1, PEF and FEF25% (r values were -0.14, -0.14, -0.07, -0.07, respectively, all P value s < 0.05); WHR was negatively correlated with FEV1 (r value was -0.07, P value < 0.05) after adjustment of age, height and BMI.


CONCLUSIONS
PBF augmentation and abdominal obesity among adult females may be the risk factors of pulmonary function impairment.
Department of Physiology and Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100005, China.
Dan-yang
DY
Wang
Kui
K
Feng
Li
L
Chen
Shu-yu
SY
Zu
Shao-mei
SM
Han
Guang-jin
GJ
Zhu
D000273:Adipose Tissue; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D050218:Body Fat Distribution; D002681:China; D005260:Female; D006801:Humans; D008168:Lung / Q000502:physiology*; D008875:Middle Aged; D012123:Pulmonary Ventilation; D012307:Risk Factors; D012494:Sampling Studies; D011795:Surveys and Questionnaires; D049629:Waist-Hip Ratio; D055815:Young Adult