회외족의 Wedge Insole 각에 따른 보행 시 접지시간, 접촉면적 및 족저압력에 미치는 영향

Abstract

Abstract

This study was conducted on a supinated group of 10 male students attending P University located in B city.

Firstly, physical characteristics of the students were examined, and then experiments were conducted in a gymnasium to secure space for free walking. Before the experiments, the students were asked to walk in normal pace for 3minutes to relax them and prevent their abnormal movement. The walking speed, one of experiment condi-tions, was set at 88 steps per minute according to a digital metronome. Only sneakers with flat bottoms were used for the experiment.

Foot contact time, foot contact area, peak pressure and mean pressure were measured using a foot pressure distribution measuring instrument. And the surface of the foot sole was divided into 10 areas - inside and outside of the rear foot(mask 1, mask 2), inside and outside of the middle foot including the arched part(mask 3, mask 4), inside and outside of the front foot(mask 5, mask 6, mask 7) Hallux and other parts including toes(mask 8, mask 9, mask 10).

This study was conducted on male college students with supinated foot to measure the foot pressure by having them wear three kinds of wedge insoles (0°, 3.5°, 7°). Analytical results by divided foot areas and the whole foot area as follows:

1. Regarding foot contact time, there was no statistically significant difference by showing 0.69±0.004 seconds at 3.5° and 0.68±0.006 seconds at 0° and 7°.

2. Regarding the foot contact area, it appeared broad in the inside area of the foot according to wedge insole, and there was statistically significant difference in the area 1 of the rear foot(p< .01) and the area 3 of the middle foot(p< .05). The whole foot contact area was the biggest at 3.5°, but there was not statistically significant difference.

3. The peak pressure by foot area decreased in the outside of the foot according to wedge insole, while increasing in the inside of the foot. Among the areas, there was statistically significant in the area 2 of the rear foot (p< .01) and the area 3 of the middle foot (p< .05). However, the peak pressure of the whole foot did not show a statistically significant difference, showing a peak pressure at 7°.

4. Regarding the mean pressure by foot area, the pressure roughly increased in the inside area of the foot according to wedge insole, while decreasing in the outside of the foot. The mean pressure of the whole foot did not show a significant difference, showing a peak figure at 0°.