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2007, Piran, Slovenia

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Modelling<br />

Each scan data was first oriented (see Figure 2 left) and then several characteristics extracted.<br />

Only the foot length and foot width characteristics analyses are presented.<br />

Figure 2: Initial orientation and an example of foot length and width measurement<br />

The foot length was considered the distance along the x-axis, measured from the minimum xpoint<br />

within the heel area, to the maximum x-point within the toes area (either first or second<br />

toe), see Figure 2. The foot width was determined as the distance in the y-direction between<br />

the inner contour maximum point (ICMP) and outer contour maximum point (OCMP). ICMP<br />

is detected in the range 65% - 80% foot length, whereas OCMP is detected in the range 50% -<br />

80% length. This methodology eliminates questionable maximums related to flat feet and first<br />

toe pointing outwards. An example is depicted on Figure 2 right.<br />

The following analyses were conducted on the obtained data:<br />

• distribution of foot lengths<br />

• differences in left/right foot length<br />

• foot length versus foot width<br />

• differences in left/right foot width<br />

RESULTS<br />

Figure 3 shows the distribution of foot length classes. We performed two classifications: 1)<br />

left and right scans were treated as individual feet, and 2) the longer foot of all individuals<br />

was used as the classification criteria.<br />

180<br />

160<br />

140<br />

120<br />

100<br />

Number of feet<br />

80<br />

60<br />

40<br />

20<br />

0<br />

8 6<br />

28<br />

24<br />

57<br />

44<br />

84 84<br />

117<br />

114<br />

112<br />

108<br />

Figure 3: Classification according to foot length<br />

157<br />

144<br />

146<br />

166<br />

82<br />

76<br />

Separate left/right<br />

Longer foot<br />

52<br />

45<br />

23<br />

26<br />

1012<br />

37 38 39 40 41 42 43 44 45 46 47 48 49<br />

EU foot size<br />

1 2<br />

483

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