Page 357 - Anthropometry, Apparel Sizing and Design

350 Anthropometry, Apparel Sizing and Design

First new measurement should help to get the comfort in the waistband area, because
very often the waistband of daily underwear, excepting some functional compression
garments, is located below the natural waist and usually below the navel. So to design
the waistband, the girth of the waistband or lower waist NW G is important.
Second new measurement is the distance h W between W G and NW G , and, following
individual preferences, the average distance is approximately 7.7cm. This level is
located close to the top of the anterior and posterior of the superior iliac spine, so
it is better to put the waistband at this position so it can support one by both bones
and organize a good fixed effect and pressure receptivity. Fig. 13.8B shows the
box-plot of NW G and h W changing.
The relationship between NW G and h W is

2
NW G ¼ 0:02h W +0:58h W +75:9, (13.5)
where NW G is new waist girth used as the location of the waistband, cm; h W is decline
distance of NW G from the natural waist, cm.
Third new measurement depends on male genital volume; consumers, when wear-
ing underwear, can feel different tightnesses in the genital area provided by different
front pouches of the underwear. h G describes the genital position put upward or down-
ward according to personal wearing habits and underwear construction. Our research
shows that the average value is about 3.1cm in the range from 4.4cm to 8.7cm.
Fourth new measurement ΔGW describes the male genital bulge in the horizontal
direction (see small width of the gray rectangle in Fig. 13.7B). It will be negative when
the abdomen (waist front) bulges larger than the genitals bulge. From statistics, 25% of
males have a negative value of ΔGW (mean is 0.68cm), and 75% of males have a
positive value (mean is 0.80cm).
Fifth new measurement ΔWH presents the buttock volume. Due to this body part,
consumers can feel different perceptions of tightness in the hip area provided by

110
New waist girth (NW G ) (cm)
WL W G
0 cm 100
5 cm
h w 10 cm 90
15 cm 80
HL 20 cm 70

60
0 5 10 15 20
(A) (B) Distance below natural waist (hw) (cm)
Fig. 13.8 Possible positions of NW G (A) and (B) relationship between average NW G and h W .