TY - JOUR
T1 - Classifying Preadolescent Boys Based on Their Weight Status and Percent Body Fat Produces Different Groups
AU - Brann, Lynn S.
N1 - Funding Information:
Financial support for this study was provided by the Glenda Bible Memorial Scholarship awarded by the American Dietetic Association's Pediatric Nutrition Practice Group and by the James D. and Monica Moran Dissertation Award from the College of Human Ecology (now the College of Education, Health, and Human Services), The University of Tennessee.
PY - 2008/6
Y1 - 2008/6
N2 - This cross-sectional pilot study investigated the relationship between weight status using body mass index (BMI) and percent body fat in preadolescent boys and examined grouping of boys based on BMI and percent body fat. Height and weight were measured to calculate BMI in 50 white 8- to 10-year-old preadolescent boys. Percent body fat was measured using air-displacement plethysmography. Boys were grouped based on their BMI status into an average BMI group and a high BMI group and based on their percent body fat into a lower percent body fat group and an upper percent body fat group. Boys' participation on sports teams and in recreational classes or lessons and boys' sedentary activity was reported by their mothers. Boys in the upper percent body fat group participated in more hours of sedentary activity than boys in the lower percent body fat group (P<0.05). Although percent body fat was significantly correlated with BMI (r=0.74, P<0.0001), a significant difference was found in the classification of boys into groups (χ2=13.52, P<0.0001). Six of the 25 boys in the high BMI group were also classified in the lower percent body fat group, and six of the 25 boys in the average BMI group were also classified in the upper percent body fat group, indicating that six boys from each group were mislabeled. Practitioners should use BMI as a screening tool and recognize its limitations for assessing adiposity.
AB - This cross-sectional pilot study investigated the relationship between weight status using body mass index (BMI) and percent body fat in preadolescent boys and examined grouping of boys based on BMI and percent body fat. Height and weight were measured to calculate BMI in 50 white 8- to 10-year-old preadolescent boys. Percent body fat was measured using air-displacement plethysmography. Boys were grouped based on their BMI status into an average BMI group and a high BMI group and based on their percent body fat into a lower percent body fat group and an upper percent body fat group. Boys' participation on sports teams and in recreational classes or lessons and boys' sedentary activity was reported by their mothers. Boys in the upper percent body fat group participated in more hours of sedentary activity than boys in the lower percent body fat group (P<0.05). Although percent body fat was significantly correlated with BMI (r=0.74, P<0.0001), a significant difference was found in the classification of boys into groups (χ2=13.52, P<0.0001). Six of the 25 boys in the high BMI group were also classified in the lower percent body fat group, and six of the 25 boys in the average BMI group were also classified in the upper percent body fat group, indicating that six boys from each group were mislabeled. Practitioners should use BMI as a screening tool and recognize its limitations for assessing adiposity.
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U2 - 10.1016/j.jada.2008.03.007
DO - 10.1016/j.jada.2008.03.007
M3 - Article
C2 - 18502237
AN - SCOPUS:43849083528
SN - 0002-8223
VL - 108
SP - 1018
EP - 1022
JO - Journal of the American Dietetic Association
JF - Journal of the American Dietetic Association
IS - 6
ER -