Zamboni M, Turcato E, Armellini F, Kahn H S, Zivelonghi A, Santana H, Bergamo-Andreis I A, Bosello O
Institute of Geriatric Medicine, University of Verona, Policlinico of Borgo Roma, Italy.
Int J Obes Relat Metab Disord. 1998 Jul;22(7):655-60. doi: 10.1038/sj.ijo.0800643.
To evaluate the relationships between the supine sagittal abdominal diameter (SAD) and visceral fat, as well as to evaluate intra- and inter-observer reliability of sagittal diameter measurement.
Twenty-eight women ranging in age from 27-78 y with a body mass index (BMI) ranging from 16.9-48.1 kg/m2 and 23 men ranging in age from 32-75 y with BMI ranging from 20-41.6 kg/m2.
Body fat distribution was measured by waist circumference, waist to hip ratio (WHR), SAD, anthropometrically assessed and a single slice of computed tomography (CT) at the L4-L5 level.
In both genders, a significant association was found between visceral adipose tissue (AT) and SAD, as evaluated by CT (women r = 0.80; men r = 0.83, P < 0.001), and SAD by anthropometry (women r = 0.76; men r = 0.82, P < 0.001), as well as between visceral AT and waist circumference (women r = 0.76, men r = 0.86, P < 0.001) and WHR (women r = 0.57, P < 0.01, men r = 0.80, P < 0.001). A significant association was also found between subcutaneous AT and SAD by anthropometry (women r = 0.79, men r = 0.74, P < 0.001). After adjusting for BMI, the association between subcutaneous AT and SAD was no longer significant in men and only moderately significant in women (r = 0.42, P < 0.05), while the association between visceral AT and SAD by anthropometry remained significant in both genders (women r = 0.63, P < 0.001; men r = 0.66, P < 0.001). When the subjects were divided into two groups according to BMI (lean to moderately overweight women with BMI < 28 and men with BMI < 30 and obese women with BMI > 28 and men with BMI > 30) we found that the relationships between SAD by anthropometry, as well as SAD by CT and visceral AT, were higher in lean to moderately overweight subjects than in those who were obese. High inter-observer correlation was found concerning SAD measurement (r = 0.99, P < 0.001). Intra- and inter-observer precision as evaluated by coefficient of variation and intraclass correlation coefficient for SAD measurement was very high.
Our study shows the usefulness of SAD by anthropometry to predict visceral fat and its very high inter- and intra-observer precision.
评估仰卧位腹部矢状径（SAD）与内脏脂肪之间的关系，并评估矢状径测量的观察者内和观察者间的可靠性。
28名年龄在27 - 78岁之间、体重指数（BMI）在16.9 - 48.1kg/m²的女性，以及23名年龄在32 - 75岁之间、BMI在20 - 41.6kg/m²的男性。
通过腰围、腰臀比（WHR）、SAD进行人体测量评估身体脂肪分布，并在L4 - L5水平进行单层计算机断层扫描（CT）。
在男性和女性中，通过CT评估发现内脏脂肪组织（AT）与SAD之间存在显著关联（女性r = 0.80；男性r = 0.83，P < 0.001），通过人体测量评估的SAD也是如此（女性r = 0.76；男性r = 0.82，P < 0.001），内脏AT与腰围之间也存在显著关联（女性r = 0.76，男性r = 0.86，P < 0.001）以及与WHR之间（女性r = 0.57，P < 0.01，男性r = 0.80，P < 0.001）。通过人体测量评估还发现皮下AT与SAD之间存在显著关联（女性r = 0.79，男性r = 0.74，P < 0.001）。在调整BMI后，皮下AT与SAD之间的关联在男性中不再显著，在女性中仅为中度显著（r = 0.42，P < 0.05），而通过人体测量评估的内脏AT与SAD之间的关联在男性和女性中均保持显著（女性r = 0.63，P < 0.001；男性r = 0.66，P < 0.001）。当根据BMI将受试者分为两组（BMI < 28的瘦至中度超重女性和BMI < 30的男性，以及BMI > 28的肥胖女性和BMI > 30的男性）时，我们发现人体测量评估的SAD以及CT评估的SAD与内脏AT之间的关系在瘦至中度超重受试者中高于肥胖受试者。在SAD测量方面发现观察者间具有高度相关性（r = 0.99，P < 0.001）。通过变异系数和组内相关系数评估的SAD测量的观察者内和观察者间精度非常高。
我们的研究表明人体测量评估的SAD对于预测内脏脂肪有用，并且其观察者间和观察者内精度非常高。
