Abstract
Objective: To investigate the relationship between fat-free mass index (FFMI) and fat mass index (FMI) by applying a body composition chart (BCC) on school boys of Binpur, West Bengal, India. Method: Data from 214 healthy school children of 10 to 17 years of age were obtained. The FFMI and FMI were plotted on the BCC, and the differences in the relationships between categories of FFMI and FMI were separately evaluated by Chi square test with body mass index (BMI) cut-off value. Results: The means of FFM and FM were 32.3±7.92 kg and 6.58± 3.2 kg respectively. Means of FFMI and FMI were 14.0±1.78 kg/m 2 and 2.83± 1.20 kg/m 2, respectively. Both FFMI and FMI categories were highly significant with cut-off BMI. Hattori chart indicated a wide variability in PBF that can occur for a given BMI value. Conclusions: Use of Hattori Charts incorporating BMI, PBF, FMI and FFMI are useful in studying the interrelations between these 4 variables. Both FFMI and FMI categories were highly significant when compared to cut-off BMI in measuring body composition. Modified Hattori Chart indicated a wide variability in PBF that can occur for a given BMI value.
Highlights
Weight, height and skinfold measurement have become popular usable tools for assessing nutritional status, fat pattern and fat distribution at individual level or in population and epidemiological research
Hattori chart indicated a wide variability in percentage body fat (PBF) that can occur for a given body mass index (BMI) value
Use of Hattori Charts incorporating BMI, PBF, fat mass index (FMI) and fat-free mass index (FFMI) are useful in studying the interrelations between these 4 variables
Summary
Height and skinfold measurement have become popular usable tools for assessing nutritional status, fat pattern and fat distribution at individual level or in population and epidemiological research. The body mass index (BMI) is widely used as a surrogate marker of childhood weight gain or loss and their body fatness[1,2]. The numerical definition of BMI is that it adjusts body weight for variability in body height[3]. The equation of BMI is weight/height squared. Like the BMI, body composition measures are useful for estimating body fatness or leanness. The simplest and numerical equation of body composition divides body weight into fat mass (FM) and lean body mass (LBM) or fat free mass (FFM) components. In 1990, Van Itallie et al proposed the fat free mass index (FFMI) and fat mass index (FMI) by dividing FFM and FM by height squared[12]
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