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ERIC Number: EJ847595
Record Type: Journal
Publication Date: 2006-Dec
Pages: 8
Abstractor: ERIC
Reference Count: 22
ISSN: ISSN-0270-1367
Agreement in Body Fat Estimates between a Hand-Held Bioelectrical Impedance Analyzer and Skinfold Thicknesses in African American and Caucasian Adolescents
Hannon, James C.; Ratliffe, Thomas; Williams, Daniel P.
Research Quarterly for Exercise and Sport, v77 n4 p519-526 Dec 2006
The body mass index (BMI), or the ratio of weight in kilograms to the square of height in meters, is widely used to determine the presence or absence of overweight and obesity in adults. Although many consider BMI an acceptable clinical surrogate of body fatness, it does not differentiate between fat and fat-free tissues. Thus, children and adolescents with the same BMI may differ widely in body fat percentages. Therefore, the presence of either an at risk for overweight BMI or an overweight BMI is no guarantee of excess body fat in an individual child or adolescent. One low-cost alternative to BMI is assessing skinfold thickness to determine body composition in youth. A potential alternative to both BMI and skinfold thicknesses is bioelectrical impedance analysis (BIA), which takes little time, is easy to administer, requires no special training, is noninvasive, requires no disrobing, and involves no threatening touching of youth in sensitive areas. The purpose of the present investigation was to compare the agreement in body fat estimates between an inexpensive and commercially available hand-held bioimpedance analyzer and the Slaughter et al. (1988) triceps and calf skinfold equation in a stratified sample of African American and Caucasian adolescent girls and boys. Participants were 198 students recruited from a pool of 220 students enrolled in six intact general physical education classes required for freshman and sophomore students. The authors found little evidence of methodological agreement in body fat estimates between a hand-held BIA device and the Slaughter et al. (1988) triceps and calf skinfold equation in their sample of African American and Caucasian adolescent girls and boys. A major limitation of the current study was use of two indirect field methods to assess body composition. Indirect field methods are subject to various measurement errors, including equipment, prediction equation, and technician error. Their findings underscore the need for future research, which compares whole body BIA-, upper body BIA-, lower body BIA-, and SKF-derived estimates of body composition to a laboratory-based criterion, such as dual-energy x-ray absorptiometry (DXA) or a four-component model in an adolescent population before making conclusive recommendations about the practical techniques to use. (Contains 2 tables and 1 figure.)
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Publication Type: Journal Articles; Reports - Research
Education Level: High Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A