Page 56 - Anthropometry, Apparel Sizing and Design

52 Anthropometry, Apparel Sizing and Design

Fig. 2.15 Armpit back fold point (a, acromion; a.s.l., armscye line; abfp, armpit back fold
point). (A) A ruler placed under the arm and the mark at the upper edge of the ruler, (B) place a
tape measure to define the armscye line, and (C) armpit back fold point and armscye line.

back fold point is the crossing point of the tape measure and the horizontal line indi-
cating the top edge of the ruler (Fig. 2.15C).

2.5.6 Waist girth and different definitions
2.5.6.1 Waist level in ISO 8559-1 and ISO 7250-1

The waist circumference in ISO 7250-1 and waist girth in ISO 8559-1 is a horizontal
girth measured midway between the lowest rib point (inferior point of the bottom of
the rib cage (10th rib) projected horizontally, 45 degrees from the midsagittal plane, to
the surface of the skin) and the highest point of the hip bone (highest point at the side
of the upper border of the iliac crest) (Fig. 2.16A). The lower part of the rib cage is
visible when the subject inhales deeply (Fig. 2.16B). Palpate to find the lowest point of
the rib cage. The mark should be made while the subject relaxes his/her muscles and
breathes normally. Palpate to find the upper edge of the iliac crest (Fig. 2.16C). Locate
the midpoint of the lowest rib point and the highest point of the hip bone (Fig. 2.16D)
and mark (Fig. 2.16E).

2.5.6.2 Natural waist girth
The natural waistline may not be horizontal. The natural waistline is defined using a
waist belt. Ask the subject to wrap a waist belt around his/her waist where it settles
naturally (Fig. 2.17A). Draw a short horizontal line at the center front, center back, and
right and left sides at the level of the midline of the waist belt (Fig. 2.17B). Remove the
waist belt. The natural waist girth is measured by passing the tape measure along the
four marks on the natural waistline. The four marks may not be on the same
horizontal plane.