Bioelectrical Impedance Versus Air-Displacement Plethysmography for Body Fat Measurements in Subjects with Abdominal Obesity: A Comparative Study

被引:1
|
作者
Cretescu, Iuliana [1 ]
Horhat, Raluca [1 ,2 ]
Mocanu, Valeria [3 ,4 ]
Munteanu, Oana [1 ]
机构
[1] Victor Babes Univ Med & Pharm, Dept Funct Sci, Timisoara 300041, Romania
[2] Victor Babes Univ Med & Pharm, Ctr Modeling Biol Syst & Data Anal, Timisoara 300041, Romania
[3] Victor Babes Univ Med & Pharm, Dept Ophthalmol, Timisoara 300041, Romania
[4] Victor Babes Univ Med & Pharm, Ophthalmo ENT Tumor Sensory Res Ctr EYE ENT, Timisoara 300041, Romania
来源
APPLIED SCIENCES-BASEL | 2025年 / 15卷 / 04期
关键词
body composition; bioelectrical impedance; air-displacement plethysmography; central obesity; X-RAY ABSORPTIOMETRY; MASS INDEX; ADIPOSITY; RELIABILITY;
D O I
10.3390/app15042056
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Obesity is a disorder with an increasing prevalence, associated with cardiovascular and metabolic pathologies. The amount and the distribution pattern of adipose tissue must be considered when managing this disease. Abdominal obesity carries a higher risk of developing obesity-related comorbidities. Body composition methods allow an objective diagnosis and follow-up in obese patients. Although bioelectrical impedance (BIA) is a practical, affordable, and widespread technique to assess body fat percentage (%BF), its accuracy has often been questioned. Therefore, the present study aimed to determine BIA's accuracy in subjects with abdominal obesity compared to air-displacement plethysmography (AP) as the reference method. Measurements with both body composition techniques were performed on 80 subjects (41 men and 39 women) with a large range of body mass indexes (BMIs). Abdominal obesity, diagnosed as a waist-to-height ratio (WHtR) above 0.5, was present in 28 of them. Agreement between methods was analyzed using t-tests, correlation, and Bland-Altman plots. Compared to AP, BIA underestimated %BF by 3.07 +/- 5.81% (CCC = 0.82) in the entire study group. The agreement was comparable in subjects with and without central obesity (2.97 +/- 6.21% and 3.26 +/- 5.1%, respectively). The changes in body shape geometry due to different adipose tissue distribution patterns only marginally affected BIA's determinations.
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页数:14
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