User Manual

Model 01128 User’s Manual
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Skinfold Measurement for School-Age Boys and Girls
The skinfold test for school age children uses two sites, the triceps and the subscapular, because they
are easy to measure and correlate highly with total body fat. The triceps skinfold is measured over the
triceps muscle of the right arm, halfway between the elbow and the acromion process of the scapula,
with the skinfold parallel to the longitudinal axis of the upper arm. The subscapular site, also on the
right side of the body, is 1 cm below the inferior angle of the scapula, in line with the natural cleavage
lines of the skin. If it is possible to secure just one skinfold, use the triceps site. The tables, which follow
is provided for your estimation of body fatness. Tables 3 and 4 (pages 10 and 11 respectively) list
norms for both triceps plus subscapular in boys and girls respectively. Tables 5 and 6 (pages 12 and 13
respectively) list percentile norms for tricep skinfold only (Table 5 boys and Table 6 girls). **
The percentile value reects the percentage of boys and girls in the national sample who had or
exceeded that skinfold thickness. For example, for a 15-year-old girl, the 25
th
percentile for the sum of
triceps and subscapular skinfolds is 23mm (Table 4, page 11). This means that the sum of skinfolds was
34mm or more in 35 percent of girls age 15. The higher the skinfold reading, the lower the percentile,
thus lower percentile ranking reect a higher degree of fatness.
Subscapular/Boy: On right side of the body, 1
cm below the inferior angle of the scapula, in
line with the natural cleavage lines of the skin.
9
Subscapular/Girl: On right side of the body, 1
cm below the inferior angle of the scapula, in
line with the natural cleavage lines of the skin.