科研之友
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摘要
Background A better way to define obesity is in terms of the percentage of body fat (BF). Subjects with normal weight, but excess BF are vulnerable to cardiovascular diseases. %26lt;br%26gt;Objective To evaluate the prevalence and characteristics of subjects having normal weight obesity (NWO) using optimal cut-offs of the BF percentage reflecting risk factors for cardiovascular disease (CVD) in Korean adults. %26lt;br%26gt;Design and setting The Korea National Health and Nutrition Examination Survey in the Korean population conducted in 2009-2010. %26lt;br%26gt;Participants We surveyed 5313 men and 6904 women aged 20years or older. %26lt;br%26gt;Measurements We investigated the relations between the BF percentage (measured by dual-energy X-ray absorptiometry) and obesity-related risk factors for CVD (diabetes mellitus, hypertension and dyslipidaemia) in Korean adults. NWO was defined as the combination of a normal body mass index (BMI; 185-229kg/m(2) in Asian subjects) and BF percentages above the determined cut-off values. %26lt;br%26gt;Results There were strong and graded associations of increasing BF percentages with the prevalence of CVD risk factors. The first cut-off values (defined as being overweight) in men and women were 206% and 334% BF, respectively, and the second cut-off values (defined as obesity) were 257% and 360% BF. Thirty-two per cent of normal weight adults had BF percentages greater than or equal to the overweight or obesity cut-offs (NWO). Subjects with NWO had a lower appendicular skeletal muscle mass, a more atherogenic lipid profile and greater insulin resistance. %26lt;br%26gt;Conclusions Obesity can be defined as 26% BF or greater in Korean men and 36% BF or greater in Korean women. There was a high prevalence of clustering of cardiometabolic abnormalities among subjects with NWO.
- 出版日期2014-2
