scholarly journals Cutoff points of BMI for classification of nutritional status using bioelectrical impedance analysis

2018 ◽  
Vol 9 (1) ◽  
pp. 24-30
Author(s):  
Mirele S. Mialich ◽  
Bruna R. Silva ◽  
Alceu A. Jordao
Keyword(s):  
Nutritional Status ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Reference Points ◽  
North India ◽  
Cross Sectional ◽  
Men And Women ◽  
Cutoff Points

Abstract The objective of this study was to improve the cutoff points of the traditional classification of nutritional status and overweight / obesity based on the BMI in a Brazilian sample. A cross-sectional study was conducted on 1301 individuals of both genders aged 18 to 60 years. The subjects underwent measurement of weight and height and bioelectrical impedance analysis. Simple linear regression was used for statistical analysis, with the level of significance set at p < 0.05. The sample consisted of 29.7% men and 70.3% women aged on averaged 35.7 ± 17.6 years; mean weight was 67.6 ± 16.0 kg, mean height was 164.9 ± 9.5 cm, and mean BMI was 24.9 ± 5.5 kg/m2. As expected, lower cutoffs were found for BMI than the classic reference points traditionally adopted by the WHO for the classification of obesity, i.e., 27.15 and 27.02 kg/m2 for obesity for men and women, respectively. Other authors also follow this tendency, Romero-Corral et al. (2008) suggested 25.8 to 25.5 kg/m2 for American men and women as new values for BMI classification of obesity. Gupta and Kapoor (2012) proposed 22.9 and 28.8 kg/m2 for men and women of North India. The present investigation supports other literature studies which converge in reducing the BMI cutoff points for the classification of obesity. Thus, we emphasize the need to conduct similar studies for the purpose of defining these new in populations of different ethnicities.

scholarly journals Perbedaan Prevalensi Kejadian Gangguan Pola Menstruasi Berdasarkan Status Gizi pada Remaja di Diii Kebidanan UMI

2020 ◽  
Vol 11 (2) ◽  
pp. 175
Author(s):  
Andi Masnilawati ◽  
Nia Karuniawati
Keyword(s):  
Nutritional Status ◽  
Body Fat ◽  
Significant Relationship ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Nutrient Status ◽  
Impedance Analysis ◽  
Chi Square ◽  
Cross Sectional ◽  
The Difference

Based on nutritional status, women who are obese have a higher risk of menstrual cycle disorder compared to women with normal nutrient status. The purpose of the study was to promote the difference in the prevalence of menstrual patterns based on nutritional status in teenagers in midwifery school, Universitas Muslim Indonesia. This research used cross-sectional design. Samples in this study were 56 people. The data were collected by filling questionnaires and direct measurements of nutritional status based on the per cent of body fat using a Bioelectrical Impedance Analysis (BIA) method, then analysed using Chi-Square. The results of this study showed 56 young women who had an average body fat per cent of 29 (51.8%). As the results, it indicated a significant relationship between the per cent of body fat with the long disorders period of menstruation (p = 0.01). Whereas the per cent of body fat with menstrual cycles did not show the prominent relationship (p = 0.33) as well as between per cent body fat with painful menstruation which there is no significant relationship (p = 0.24). Besides, the situation can be caused by several factors such as changes in hormone and stress. Keywords: menstruation disorder; body fat; teenagers ABSTRAK Berdasarkan status gizi, wanita yang mengalami obesitas memiliki risiko gangguan siklus menstruasi lebih tinggi dibandingkan dengan wanita dengan status gizi normal. Tujuan penelitian adalah memgetahui perbedaan prevalensi gangguan pola menstruasi, berdasarkan status gizi pada remaja di program D-III Kebidanan UMI. Desain penelitian ini adalah cross sectional. Sampel penelitian ini adalah 56 orang. Data dikumpulkan melalui pengisian kuesioner dan pengukuran langsung status gizi berdasarkan persen lemak tubuh menggunakan metode Bioelectrical Impedance Analysis (BIA). Data dianalisis menggunakan uji Chi square. Hasil penelitian ini menunjukkan bahwa dari 56 remaja putri yang memiliki persen lemak tubuh normal sebanyak 29 (51,8%). Terdapat hubungan yang signifikan antara persen lemak tubuh dengan gangguan lama menstruasi (p=0,01), sedangkan antara persen lemak tubuh dengan siklus menstruasi tidak ada hubungan signifikan (p=0,33) begitupun juga dengan antara persen lemak tubuh dengan nyeri haid tidak ada hubungan yang signifikan (p=0,24) hal ini bisa disebabkan oleh beberapa faktor antar lain perubahan hormon dan stress. Kata kunci: gangguan mentruasi; lemak tubuh; remaja

Techniques For Assessment Of Body Composition In Health

2018 ◽  
Author(s):  
Carla M Prado ◽  
Camila LP Oliveira ◽  
M Cristina Gonzalez ◽  
Steven B Heymsfield
Keyword(s):  
Body Composition ◽  
Nutritional Status ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Dual Energy ◽  
Composition Analysis ◽  
Body Composition Assessment ◽  
Air Displacement Plethysmography ◽  
X Ray

Body composition assessment is an important tool in both clinical and research settings able to characterize the nutritional status of individuals in various physiologic and pathologic conditions. Health care professionals can use the information acquired by body composition analysis for the prevention and treatment of diseases, ultimately improving health status. Here we describe commonly used techniques to assess body composition in healthy individuals, including dual-energy x-ray absorptiometry, bioelectrical impedance analysis, air displacement plethysmography, and ultrasonography. Understanding the key underlying concept(s) of each assessment method, as well as its advantages and limitations, facilitates selection of the method of choice and the method of the compartment of interest. This review contains 5 figures, 3 tables and 52 references Key words: air displacement plethysmography, bioelectrical impedance analysis, body composition, disease, dual-energy x-ray absorptiometry, health, muscle mass, nutritional status, obesity, sarcopenia, ultrasound fat mass

scholarly journals Comparison of visceral fat area measured by CT and bioelectrical impedance analysis in Chinese patients with gastric cancer: a cross-sectional study

BMJ Open ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. e036335
Author(s):  
Bo Gao ◽  
Yu Liu ◽  
Chao Ding ◽  
Shunli Liu ◽  
Xiaotian Chen ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Bioelectrical Impedance Analysis ◽  
Visceral Obesity ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Limits Of Agreement ◽  
Visceral Fat Area ◽  
Cross Sectional

ObjectivesBioelectrical impedance analysis (BIA) is a simple and inexpensive method to estimate body composition. However, the accuracy of BIA is unknown. We aimed to assess the accuracy of BIA in estimating visceral fat area (VFA) in patients with gastric cancer.Study designThis was a cross-sectional study comparing the accuracy of BIA in estimating VFA with the gold standard method measured by CT. VFA was measured in enrolled patients both by CT and BIA. VFA by CT at umbilical level ≥100 cm2 was considered as visceral obesity. Reliability between the two methods was assessed by intraclass correlation coefficient (ICC) and consistency was assessed by Bland-Altman method (95% limits of agreement). The area under the receiver operating characteristic curve (AUROC) was used to assess the performance of BIA in diagnosing visceral obesity.SettingThe study was conducted in China.ParticipantsFrom 1 January 2017 to 1 December 2018, a total of 157 patients diagnosed with gastric cancer were enrolled.ResultsOverall, VFA by CT and BIA in patients was 84.39±46.43 cm2 and 71.94±22.44 cm2, respectively. VFA estimated by BIA was positively correlated with VFA measured by CT using Pearson’s test (r=0.650, p<0.001). Overall, ICC for the two methods was 0.675. The mean bias between the two measurements was 12.45±36.13 cm2. The 95% limits of agreement ranged from −58.36 cm2 to 83.26 cm2. The cut-off value for diagnosing visceral obesity by BIA was 81 cm2 (AUROC: 0.822, p<0.001, 95% CI 0.758 to 0.887).ConclusionsVFA measured by BIA showed satisfactory reliability with that measured by CT. However, the absolute values of the two methods were not interchangeable. The cut-off value for VFA by BIA in diagnosing visceral obesity was 81 cm2 for patients with gastric cancer in the Chinese population.

Sign in / Sign up

Export Citation Format

Share Document