Impact of visceral adiposity measured by abdominal computed tomography on pulmonary function

Although an inverse relationship between abdominal adiposity and pulmonary function has been suggested, direct measurement of abdominal adipose tissue has rarely been attempted. Our object is to determine the impact of abdominal adiposity on pulmonary function by directly measuring abdominal adipose...

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Bibliographic Details
Published in:Journal of Korean medical science 2011, 26(6), 152, pp.771-777
Main Authors: Park, Young Sik, Kwon, Hyuk Tae, Hwang, Seung-Sik, Choi, Seung Ho, Cho, Young Min, Lee, Jinwoo, Yim, Jae-Joon
Format: Article
Language:English
Subjects:
Adiposity
Adolescent
Adult
Aged
Aged, 80 and over
Cross-Sectional Studies
Female
Humans
Intra-Abdominal Fat - diagnostic imaging
Lung - physiology
Male
Middle Aged
Original
Radiography, Abdominal
Smoking
Tomography, X-Ray Computed
의학일반
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Summary:Although an inverse relationship between abdominal adiposity and pulmonary function has been suggested, direct measurement of abdominal adipose tissue has rarely been attempted. Our object is to determine the impact of abdominal adiposity on pulmonary function by directly measuring abdominal adipose tissue with abdominal computed tomography (CT). In this cross-sectional study, we included never-smokers between the ages of 18 and 85 yr, who had undergone spirometry and abdominal adipose tissue analysis with CT scans during November 1, 2005 to October 31, 2009 as part of the comprehensive health examination. Among a total of 3,469 participants, 890 (25.7%) were male. The mean body mass index and waist circumference among males and females were 24.6 kg/m(2) and 87.8 cm and 23.0 kg/m(2) and 83.0 cm, respectively. Although total adipose tissue (TAT) of the abdomen in males (269.1 cm(2)) was similar to that in females (273.6 cm(2)), the ratio of visceral adipose tissue (VAT)/subcutaneous adipose tissue (SAT) was different; 0.99 in males and 0.50 in females. In males, TAT, SAT, and VAT were inversely associated with the absolute value of forced vital capacity (FVC), and TAT and VAT were inversely associated with forced expiratory volume in one second (FEV(1)). However, in females, TAT and VAT, but not SAT, were inversely associated with absolute FVC and FEV(1) values. In conclusion, the amount of abdominal adipose tissue directly measured using CT is inversely associated with lung function.
ISSN:1011-8934
1598-6357
DOI:10.3346/jkms.2011.26.6.771