| Objective:
Body composition assessment in children has been of particular
interest because of an increasing trend in childhood obesity.
The measurement of total body fat provides important information
on health risks and obesity diagnosis. A simple and noninvasive
method of quantifying fat mass that is applicable in children
is a leg-to-leg electrode BIA system (TBF-305, Tanita Corp,
Tokyo, Japan). Prior studies have demonstrated the system's
validity in estimating body composition of healthy adults
but information in children is lacking
Design:
The present study evaluated the TBF-305 in a group of 96
children (age, 11.9±3.3, at varied Tanner stages)
by comparing respective body composition estimates with dual
energy x-ray absorptiometry (DXA)(Lunar DPX-L) |
Results:
The mean fat free mass estimates by BIA were [X(SD)] 35.7(13.2)
kg and by DXA 36.1(13.2) kg (p-0.84;NS). Additionally, a
linear regression plot of both FFM estimates revealed a high
correlation between the two (r=0.98, p<0.001, SEE=2.56
kg). The slope and intercept of the line wre not significantly
different from 1 and zero, respectively. Similarly, a high
correlation was observed between % fat estimates by both
methods (r=0.89, p<0.001, SEE=4.56) indicating that the
leg-to-leg BIA system provides comparable estimates with
DXA body composition estimates in children.
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