CROSS-VALIDATION OF METHODS TO PREDICT BODY-FAT IN AFRICAN-AMERICAN AND CAUCASIAN COLLEGIATE FOOTBALL PLAYERS

被引:11
作者
CLARK, RR
KUTA, JM
SULLIVAN, JC
机构
[1] Exercise Science and physiologists, University of Wisconsin Hospital Sports Medicine Center in Madison
关键词
BIOELECTRICAL IMPEDANCE; BODY DENSITY; PREDICTION EQUATIONS; SKINFOLDS;
D O I
10.1080/02701367.1994.10762204
中图分类号
F [经济];
学科分类号
02 ;
摘要
Eight skinfold (SF) equations and bioelectrical impedance analysis (BIA) were cross-validated in 71 Division IA college football players. Criterion percent body fat (%FAT) was determined by hydrostatic weighing (HW) and computed from body density (BD) for African Americans (n = 28) and Caucasians (n = 43). Results were analyzed by method, with position and race effects examined simultaneously using a two-way ANOVA. Analysis included computation of mean difference (MD), correlation (r), standard error of estimate (SEE), and total error (TE). Skinfolds had MDs ranging from -1.8 to 29%, correlations from .85 to .93, SEEs from 23 to 3.2%, and TEs from 2.3 to 4.2%. Bioelectrical impedance analysis was significantly different from HW and yielded the highest MD (3.8%), lowest correlation (r =. 78), highest SEE (3.9%), and highest TE (5.4%). The Jackson and Pollock (1978) SF equation provided the most valid prediction of HW-determined %FAT in a racially mixed sample of college football players, demonstrating the highest correlation, lowest SEE and TE, and an intercept and slope not significantly different than 0.0 and 1.0, respectively.
引用
收藏
页码:21 / 30
页数:10
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