How Useful Is Waist Circumference for Assessment of Abdominal Obesity in Korean Pre-Menopausal Women During Weight Loss?

腰圍是否有效評估韓國停經前婦女在減重期間之腹部肥胖？

Mi-Ja Hwang ； Won-Suk Chung ； Dympna Gallagher ； Deog-Yoon Kim ； Hyun-Dae Shin ； Mi-Yeon Song

《Asia Pacific Journal of Clinical Nutrition》 17卷2期 (2008/06) Pp. 229-234

https://doi.org/10.6133/apjcn.2008.17.2.07

摘要

已知在相同的身體質量指數（BMI）下，亞洲婦女比起白種人以及非裔美國婦女有較多的腹部脂肪。本研究的目的是在減重計劃前後的亞洲婦女中，以雙能量X光吸收儀（DXA）測得的腹部脂肪做比較標準，測試腰圍是否為一個有用的腹部脂肪的指標。有38位健康、停經前的肥胖韓國婦女（體脂肪比大於30%）參與一個六星期的減重計劃，計劃中包括了草藥配方、限制熱量攝取及運動。在減重前後均執行體位及DXA的測量。在計劃開始時，由DXA檢測的一個特定區域（L2-腸骨脊），與體位測量之間有相關：腰圍（r=0.91）＞BMI（r=0.87）＞腰圍身高比（r=0.82）＞腰臀比（r=0.46）；而減重後的相關性如下：BMI（r=0.88）＞腰圍（r=0.84）＞腰圍身高比（r=0.82）。DXAROI的變化與體位測量的變化之間有適度的相關性：BMI（r=0.63,p＜0.01）＞腰圍（r=0.39,p＜0.05）＞腰圍身高比（r=0.37,p＜0.05）。而逐步複迴歸分析顯示，在減重前藉由DXA測得的腹部脂肪，有83%的變異可以被腰圍所解釋，減重後則是可以被腰圍及BMI所解釋。本研究結果顯示對於停經前的韓國婦女，腰圍是腹部脂肪的一個好的預測因子。

關鍵字

腹部脂肪 ； 雙能量X光吸收儀 ； 肥胖 ； 腰圍 ； 體脂分佈

並列摘要

Asian women are known to have a larger amount of abdominal fat (AF) for the same level of BMI compared with Caucasian and African-American women. This study was aimed to determine whether waist circumference (WC) could be useful as an index of AF compared with AF measured by dual energy x-ray absorptiometry (DXA) before and after a weight-loss program in Asian women. Thirty-eight healthy, pre-menopausal obese Korean women (body fat percent ＞ 30%) were enrolled and followed during a 6-week weight-loss program including herbal formula, calorie restriction, and exercise. Anthropometry and DXA measurements were performed before and after weight-loss. A specific region of interest (ROI, L2-iliac crest) by DXA was correlated with anthropometry at baseline: WC (γ = 0.91) ＞ BMI (γ = 0.87) ＞ Waist-Height ratio (WHtR, γ = 0.82) ＞ WHR (γ = 0.46); and after weight loss: BMI (γ = 0.88) ＞ WC (γ = 0.84) ＞ WHtR (γ = 0.82), all p ＜ 0.01. The change in DXA ROI showed a reasonable correlation with change in anthropometry: BMI (γ = 0 .63, p ＜ 0.01) ＞ WC (γ = 0.39, p ＜ 0.05) ＞ WHtR (γ = 0.37, p ＜ 0.05). A stepwise multiple regression analysis revealed that 83% of the variance in DXA derived AF was explained by WC at baseline, WC and BMI at follow-up, respectively. This study suggests that WC could be a good predictor of AF for Korean pre-menopausal women.

並列關鍵字

abdominal fat ； Dual energy x-ray absorptiometry ； obesity ； waist circumference ； fat distribution