Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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The Study of Plantar Foot Pressure Distribution during Obstacle Crossing with Different Height in Normal Young Adults

보행 시 장애물 높이에 따른 정상 성인의 족저압 분포 연구

  • Published : 2008.06.30
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Abstract

The purpose of this study was to investigate the effect of different obstacle heights on the plantar foot pressure during obstacle crossing. Sixteen healthy adults who had no musculoskeletal disorders were instructed to perform unobstructed level walking and to step over obstacles corto 10cm, 20cm, 30cm. Plantar foot forces and pressures were recorded by the Footmat system(Tekscan, Boston, USA) during level and obstacle walking with barefoot. Plantar foot surface was defined as seven regions for pressure measurement; two toe regions, three forefoot regions, one midfoot region, one heel region. One-way ANOVA was used to compare each region data of foot according to various heights. The results indicated that there are significant differences on peak pressure and maximal forces regarding each region at stance phase. As height of obstacle became high, the pathway of COP had a tendency to be short and abducted. Plantar pressure of foot could be changed by obstacle height and these findings demonstrated that obstacle with different height have an effect on structure and function of the foot.

본 연구는 장애물을 넘는 동안 장애물의 높이 변화가 보행 시 족저압에 미치는 영향을 알아보기 위해 실시하였으며 이를 위해 족저 최고 족저압과 최대 힘, 압력 중심의 이동 경로를 중심으로 자료를 수집하여 분석하였다. 근골격계에 문제가 없는 열여섯 명의 건강한 젊은 성인이 이 연구에 참여하여 맨발로 각각 평지, 10cm, 20cm 그리고 30cm의 장애물을 넘는 동안 입각기 발의 족저 최고 족저압과 최대 힘, 압력중심 이동경로를 측정하였다. 측정은 Tekscan사의 Footmat system을 이용하였으며, 대상자의 발을 일곱 개의 영역(두 개의 발가락 영역, 세 개의 전족부 영역, 한 개의 중족부와 후족부 영역)으로 나누어 수집한 자료를 일원배치분산분석을 이용하여 분석하였다. 본 연구를 통해 높이가 다른 여러 가지 장애물을 넘을 때, 입각기 동안 족저의 영역별 최고 족저압과 최대 힘은 발가락부위에서 유의하게 증가하는 것을 알 수 있었고 후족부위에서는 감소하였다. 그리고 장애물의 높이가 높아질수록 압력중심 이동경로가 짧아지면서 전족부에서 외전하는 경향을 볼 수 있었다. 따라서 본 연구에서는 장애물 보행 시 장애물의 높이가 발의 구조와 기능에 영향을 미친다는 것을 확인할 수 있었다.

Keywords

References

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  1. The Correlation between Dynamic Balance Measures and Stance Sub-phase COP Displacement Time in Older Adults during Obstacle Crossing vol.25, pp.9, 2013, https://doi.org/10.1589/jpts.25.1193