A Study on the Analysis of Foot Shape (I) -on Classification of Foot Type-

발의 형태분석에 관한 연구(I) -발의 형 분류를 중심으로-

To classify the foot type, direct measurements, metatarso-phalanx angle and foot print angle of the right and left foot were measured and analyzed. The results are as follows. 1. The correlation coefficients between right and left foot were high degree, and except medial malleous height, the diffences between right and left foot are not significant. 2. The correlation coefficient among direct measurements of the foot are high degree, tut the correlation coefficients between direct measurements and metatarso-phalanx angle and foot print angle are no or low degree. Therefore, to recognize the foot type, the direct measurements, metatarso-phalanx angle and foot print angle need to be measured independently. 3. According to foot width/foot $length{\times}100$ which is the slender degree of foot, three groups are distinguished: one is slender type of which foot width/foot $length{\times}100$ is less than $40.14\%$, two is standard type of which foot width/foot $length{\times}100$ is $40.14\%{\~}44.30\%$, three is broad type of which foot width/foot $length{\times}100$ is more than $44.30\%$. 4. On the photographs metatarso-phalanx angle was measured, and two groups are distinguished: one is normal type of which the metatarso-phalanx angle is more than $160^{\circ}$ and the other is the deformed type of which the metatarso-Phalanx angle is less than $159^{\circ}$. 5. By foot print angle $30^{\circ}$ which need reformation of the foot, two groups are distinguished: one is normal foot print angle of which the angle is more than $30^{\circ}$ and the other is flat foot print angle of which the angle is less than $30^{\circ}$. 6. Classifications by foot width/foot $length{\times}100$, metatarso-Phalanx angle and foot Print angle are put together, and then foot types are classified into 12 groups such as Table 11.