Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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The Effect of Form of Outsole on Lower Leg Electromyography during Gait

보행시 신발 밑창 형태가 하지 근활성도에 미치는 영향

  • Kim, Jong-Sun (Division of Physical Education, Dankook University) ;
  • Choi, Hyun-Hee (Division of Exercise Precription, Dongseo University)
  • Received : 2011.11.11
  • Accepted : 2012.01.05
  • Published : 2012.01.31
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Abstract

The purpose of this study was to analysis the effect of form of outsole on lower leg Electromyography (EMG) during gait. The subject were 11 women(mean age $47.33{\pm}4.4$ years, height $158.00{\pm}3.3$cm, weight $59.50{\pm}6.1$, body mass index $23.80{\pm}1.8kg/m^2$), who had no serious foot musculoskeletal disease within3years prior to study. The vastus medialis, gastrocnemius, semitendinosus, tibialis anterior were compared during gait with 2 types of shoe(complex function double rocker sole, negative-heel rocker sole) by using pair t-test(p<.05). The vastus medialis, gastrocnemius, semitendinosus were not found to be significantly different among the 2 types of shoe but tibialis anterior were found(p<.05). The complex function double rocker sole shoe caused a significant change in energy expenditure compared to the negative-heel rocker sole shoe.

이 연구에서는 최근 국내에서 개발된 보행용 기능성 신발 중 걷기 효율성을 변화시키는 복합적 기능성 신발(double rocker sole;CDR)과 negative-heel rocker sole(NR)형태 신발의 근육 활성도를 비교하였다. 연구대상은 하지정형 외과적 질환이 없는 40-50대 중년여성 11명을 대상(연령 $47.33{\pm}4.4$, 신장 $158.00{\pm}3.3$cm, 체중 $59.50{\pm}6.1$, BMI $23.80{\pm}1.8kg/m^2$)으로 하였다. 연구결과 좌,우측의 내측광근, 비복근, 반건양근에서는 근활성도의 수준은 통계적으로 유의한 차이가 나타나지 않았지만, CDR신발이 전경골근에서 통계적으로 유의하게 높은 결과가 나타났다(p<.05). 걷기운 동시 동일한 조건속에 운동을 실시할 경우 신발 밑창의 변화를 통해 인위적으로 운동량을 증가시킬 수 있을 것이다.

Keywords

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