Use of Fat Mass and Fat Free Mass Standard Deviation Scores Obtained Using Simple Measurement Methods in Healthy Children and Patients: Comparison with the Reference 4-Component Model
نویسندگان
چکیده
BACKGROUND Clinical application of body composition (BC) measurements for individual children has been limited by lack of appropriate reference data. OBJECTIVES (1) To compare fat mass (FM) and fat free mass (FFM) standard deviation scores (SDS) generated using new body composition reference data and obtained using simple measurement methods in healthy children and patients with those obtained using the reference 4-component (4-C) model; (2) To determine the extent to which scores from simple methods agree with those from the 4-C model in identification of abnormal body composition. DESIGN FM SDS were calculated for 4-C model, dual-energy X-ray absorptiometry (DXA; GE Lunar Prodigy), BMI and skinfold thicknesses (SFT); and FFM SDS for 4CM, DXA and bioelectrical impedance analysis (BIA; height(2)/Z)) in 927 subjects aged 3.8-22.0 y (211 healthy, 716 patients). RESULTS DXA was the most accurate method for both FM and FFM SDS in healthy subjects and patients (mean bias (limits of agreement) FM SDS 0.03 (± 0.62); FFM SDS -0.04 (± 0.72)), and provided best agreement with the 4-C model in identifying abnormal BC (SDS ≤-2 or ≥ 2). BMI and SFTs were reasonable predictors of abnormal FM SDS, but poor in providing an absolute value. BIA was comparable to DXA for FFM SDS and in identifying abnormal subjects. CONCLUSIONS DXA may be used both for research and clinically to determine FM and FFM SDS. BIA may be used to assess FFM SDS in place of DXA. BMI and SFTs can be used to measure adiposity for groups but not individuals. The performance of simpler techniques in monitoring longitudinal BC changes requires investigation. Ultimately, the most appropriate method should be determined by its predictive value for clinical outcome.
منابع مشابه
Relationship between Basal Metabolic Rate and Serum Parathyroid Hormone and Body Composition in Women with Secondary Hyperparathyroidism
Introduction: Several factors including fat free mass and fat mass can affect Basal Metabolic Rate (BMR) as the largest component of daily energy demand. The aim of the current cross-sectional study was to compare BMR in women with secondary hyperparathyroidism and healthy women and to evaluate its relationship with serum Parathyroid Hormone (PTH), fat free mass and fat mass in these subjects. ...
متن کاملComparison of Total Fat, Percentage of Fat, Trunk Fat, Soft Lean and Mass Waist-Hip Ratio between Diabetic type II and Matched Non-Diabetic Iranians using Bioelectrical Impedance Analysis
Introduction: Research shows a relationship between diabetes (type II) and obesity. Bioelectrical Impedance Analysis (BIA) is a relatively new and approved method for the measurement of body composition. The aim of this study was to compare diabetic and non-diabetic adults on the basis of waist-hip ratio, total fat, percentage of fat, trunk fat, and soft lean mass. Methods: In this cross-sec...
متن کاملComparison between BMI and Inverted BMI in Evaluating Metabolic Risk and Body Composition in Iranian Children
Objectives: To compare BMI and inverted BMI in evaluating body measurement, resting blood pressure, Dual energy X-ray absorptiometry (DEXA) parameters of fat mass and metabolic risk factors in Iranian children Materials and Methods: This is a cross-sectional study on 477 children aged 9-18 yearsin the South of Iran. Weight, height, resting blood pressure, waist and hip circumference and puberta...
متن کاملComparison of Body Composition Indices of Chemical Warfare Veterans with Chronic Pulmonary Obstruction in Patients with Low and Moderate to High Disease Severity
Background and Aim: More than 100,000 Iranian veterans suffer from chemical damage caused by mustard gas. The aim of this study was to determine the body composition status of chemical warfare veterans with chronic obstructive pulmonary disease (COPD). Methods: This is a cross-sectional study. 97 chemical warfare veterans with COPD in Karaj, Iran were included in the study. The Patients were di...
متن کاملشاخصهای آنتروپومتریک، نمایه توده بدون چربی و ارتباط آن با عملکرد ریوی در بیماران COPD
Background: Loss of body weight and depletion of muscle mass are common nutritional problems in Chronic Obstructive Pulmonary Disease (COPD) patients . They are associated with increase disability, reduction of respiratory and skeletal muscle mass and strength, and these exert destructive effects on pulmonary function and quality of life in COPD patients. The aim of the current study was to a...
متن کامل