Threshold values of visceral fat and waist girth in Japanese obese children

AbstractBMIz-score (BMIz) is commonly used to assess childhood obesity. Whether change in BMIz score predicts change in visceral fat remains unclear. The objective of the work was to study changes in visceral fat, cardiovascular fitness (CVF), and metabolic health over 6 months in children with stable/decreased-BMIz vs. increased-BMIz. Ninety children with obesity, referred for lifestyle intervention were studied (mean age 11±3.1 years, 50% girls, 22% Hispanic). Assessment included abdominal and total fat by dual X-ray absorptiometry (DXA), sub-maximal VO2 for CVF, anthropometrics, and fasting insulin, glucose, HDL-C, triglycerides, AST and ALT at 0 and 6 months. Sixty-three children (70%) showed a stable/decrease in BMIz over 6 months. There was no significant change in total body fat between groups (−1.3±2.9% in BMIz-stable/down vs. − 0.6 ± 2.6% BMIz-up, p=0.459); however, BMIz-stable/down group showed a decrease in visceral fat compared to the BMIz-up group (−258±650 g vs.+137±528 g, p=0.009). BMIz-stable/down group also demonstrated increased CVF (+1.2 ml/kg/min, p<0.001), not seen in the BMIz-up group. Neither group had significant changes in metabolic markers. Preventing BMIz increase in obese children predicts a significant decrease in visceral fat even if total body fat is unchanged. This is often associated with increased fitness. Thus, increasing fitness level and keeping BMI stable are strategic initial goals for obese children.

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Potential Role of New Anthropometric Parameters in Childhood Obesity with or Without Metabolic Syndrome

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2019.698 ◽

2019 ◽

Vol 7 (23) ◽

pp. 3930-3936 ◽

Cited By ~ 1

Author(s):

Nagwa Abdallah Ismail ◽

Shadia H. Ragab ◽

Abeer M. Nour E lDin Abd ElBaky ◽

Mona Hamid Ibrahim

Keyword(s):

Metabolic Syndrome ◽

Visceral Fat ◽

Subcutaneous Fat ◽

Shape Index ◽

Visceral Adiposity Index ◽

Obese Children ◽

Anthropometric Parameters ◽

Liver Size ◽

Subcutaneous Fat Thickness ◽

Fat Thickness

BACKGROUND: Obese children and adolescents are more prone to have metabolic syndrome (MS).MS is a cluster of cardiovascular risk factors associated with insulin resistance. Body round index [BRI], visceral adiposity index [VAI] and a body shape index [ABSI] are among the new obesity anthropometric parameters. AIM: To evaluate the new markers for obesity in children and their possible association with other laboratory and clinical variables of MS. METHODS: Eighty nine obese children and 40 controls aged 10-18 years were recruited. Full history taking, thorough clinical examination, anthropometric and biochemical features were performed in the studied groups. Subcutaneous fat thickness (SFT) and visceral fat thickness (VFT) were estimated by ultrasonography. RESULTS: Obese children, exhibited significantly higher values in all anthropometric measurements (P < 0.001). Diastolic and systolic blood pressure were significantly higher (P < 0.001) in the obese group. ABSI, BRI and VAI have been found to be significantly higher in obese subjects (P < 0.001), with no significant gender difference. BMI, WHtR, WC/HR, SBP, DBP, subcutaneous fat thickness and visceral fat thickness, Liver Span, ABSI, BRI, VAI and HOMA_IR were significantly higher among children with MS than those without MS. Positive significant correlations of VAI with BMI, WC/Ht, WC/Hip, SBP, DBP, SFT, VFT, Liver size and HOMA-IR (r = 0.384, 0.239, 0.268, 0.329, 0.516, 0.320, 0.254, 0.251, and 0.278 respectively) are shown. The area under the ROC curve (AUC) of BMI, VAI, ABSI, BRI for predicting MS was 0.802 (0.701-0.902), 0.737 (0.33-0.841), 0.737 (0.620-0.855), 0.816 (0.698-0.934). CONCLUSION: We suggest using the VAI and WHtR indexes, as they are better predictor of MS.

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Association of BMI measurements to waist circumference and waist-to-height ratio in overweight and obese children

Paediatrica Indonesiana ◽

10.14238/pi60.3.2020.130-5 ◽

2020 ◽

Vol 60 (3) ◽

pp. 130-5

Author(s):

Sindy Irenewati ◽

Nahwa Arkhaesi ◽

Wistiani Wistiani

Keyword(s):

Waist Circumference ◽

Visceral Fat ◽

Primary Schools ◽

Multivariate Logistic Regression Analysis ◽

Categorical Variables ◽

Monitoring Methods ◽

Obese Children ◽

Height Ratio ◽

Waist To Height Ratio ◽

Obesity In Children

Background Early monitoring of visceral fat is important to prevent the worsening of obesity in children. In recent years, waist circumference (WC) and waist-to-height ratio (WHtR) measurements have gained attention as an anthropometric indexes for obesity in children. They are an easy-to-use, inexpensive, specific to visceral fat and safe monitoring methods for children. International reference values, however, do not exist for any of the two measures to determine obesity in children. Objective To compare WC and WHtR to body mass index (BMI) status in overweight and obese children aged 10-12 years. Methods This cross-sectional study included overweight and obese children aged 10-12 years from four primary schools in Semarang, Central Java. Subjects underwent anthropometric measurements including weight, height, and waist circumference. Subjects were classified as obese (≥P95) or overweight (P85≤P<P95) using BMI percentiles according to age and sex. Chi-square test was used to assess for associations between categorical variables and multivariate logistic regression analysis was used to identify a dominant variable. Results Forty-two obese and 23 overweight children were studied. Children with higher values of WC (PR=1.879) and WHtR (PR=8.352) had a higher prevalence of having higher BMI status (obese). Using multivariate analysis, WHtR was the more dominant variable associated with BMI status, compared to WC. Conclusion Higher WC (cut off P90) and WHtR (cut off 0.5) have a significant associations with greater obesity children aged 10-12 years. Compared to WC, WHtR is a stronger predictive factor for obesity.

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Association of BMI measurements to waist circumference and waist-to-height ratio in overweight and obese children

Paediatrica Indonesiana ◽

10.14238/pi60.3.2020.131-6 ◽

2020 ◽

Vol 60 (3) ◽

pp. 131-6

Author(s):

Sindy Irenewati ◽

Nahwa Arkhaesi ◽

Wistiani Wistiani

Keyword(s):

Waist Circumference ◽

Visceral Fat ◽

Primary Schools ◽

Multivariate Logistic Regression Analysis ◽

Categorical Variables ◽

Monitoring Methods ◽

Obese Children ◽

Height Ratio ◽

Waist To Height Ratio ◽

Obesity In Children

Background Early monitoring of visceral fat is important to prevent the worsening of obesity in children. In recent years, waist circumference (WC) and waist-to-height ratio (WHtR) measurements have gained attention as an anthropometric indexes for obesity in children. They are an easy-to-use, inexpensive, specific to visceral fat and safe monitoring methods for children. International reference values, however, do not exist for any of the two measures to determine obesity in children. Objective To compare WC and WHtR to body mass index (BMI) status in overweight and obese children aged 10-12 years. Methods This cross-sectional study included overweight and obese children aged 10-12 years from four primary schools in Semarang, Central Java. Subjects underwent anthropometric measurements including weight, height, and waist circumference. Subjects were classified as obese (≥P95) or overweight (P85≤P<P95) using BMI percentiles according to age and sex. Chi-square test was used to assess for associations between categorical variables and multivariate logistic regression analysis was used to identify a dominant variable. Results Forty-two obese and 23 overweight children were studied. Children with higher values of WC (PR=1.879) and WHtR (PR=8.352) had a higher prevalence of having higher BMI status (obese). Using multivariate analysis, WHtR was the more dominant variable associated with BMI status, compared to WC. Conclusion Higher WC (cut off P90) and WHtR (cut off 0.5) have a significant associations with greater obesity children aged 10-12 years. Compared to WC, WHtR is a stronger predictive factor for obesity.

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Correlation of Visceral Fat in Obese Children and Adolescents

PEDIATRICS ◽

10.1542/peds.137.supplement_3.122a ◽

2016 ◽

Vol 137 (Supplement 3) ◽

pp. 122A-122A

Author(s):

Suzanne E Cuda ◽

Lori C. Johanns

Keyword(s):

Children And Adolescents ◽

Visceral Fat ◽

Obese Children

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