Journal of the Ergonomics Society of Korea (대한인간공학회지)

Ergonomics Society of Korea (대한인간공학회)
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The Influence of Wedged Insoles on Lower Extremity Joints during Gait

경사진 안창이 보행시 하지관절에 미치는 영향

  • Kwon, Min-Jeong (Design Group3, Mobile Communication Division, Telecommunication Network Business, Samsung Electronics) ;
  • Choi, Hwa-Soon (Department of Industrial and Management Engineering, POSTECH) ;
  • Chung, Min-K. (Department of Industrial and Management Engineering, POSTECH) ;
  • Na, Seok-Hee (Department of Industrial and Management Engineering, POSTECH)
  • 권민정 (삼성전자 정보통신총괄 무선디자인3그룹) ;
  • 최화순 (포항공과대학교 기계산업공학부) ;
  • 정민근 (포항공과대학교 기계산업공학부) ;
  • 나석희 (포항공과대학교 기계산업공학부)
  • Published : 2007.02.28
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Abstract

Despite the widespread use of laterally wedged insoles for patients with knee osteoarthritis and medially wedged insoles for controlling rearfoot pronation, an understanding of the effects of wedged insoles was limited and sometimes controversial. The objective of this study was to evaluate the effect of wedged insoles on the kinematics and kinetics of normal gait. Ten male subjects without history of lower limb disorders were recruited. Each subject performed four gait cycles under each of seven conditions; shod with 5$^{\circ}$, 8$^{\circ}$ and 15$^{\circ}$, 8$^{\circ}$ and 15$^{\circ}$ laterally wedged insoles. In order to determine statistical differences among seven conditions, the measured temporal spatial variables, angular displacements, joint moments, and ground reaction forces were compared with a one-way analysis of variance. Some significant changes induced by wedged insoles were apparent in joint moments and ground reaction forces. The medially wedged insole increased the laterally directed ground reaction force and varus moments at the ankle force and varus moments at the ankle and the knee.

Keywords

References

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