Journal of the Korean Academy of Clinical Electrophysiology (대한임상전기생리학회지)

The Korean Academy of Clinical Electrophysiology (대한임상전기생리학회)
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The Effects of the Insole Types on Lower Leg Muscle Activity during Treadmill Walking

트레드밀 걷기 동안 인솔형태가 하퇴 근육의 근 활성에 미치는 영향

  • Park, Jang-Sung (Department of Physical Therapy, Seonam University) ;
  • Seo, Sam-Ki (Department of Physical Therapy, Seonam University) ;
  • Lee, Sang-Ho (Department of Physical Therapy, Seonam University) ;
  • Jung, Hwa-Su (Department of Occupational Therapy, Seonam University) ;
  • Lim, Jae-Heon (Department of Physical Therapy, Seonam University)
  • 박장성 (서남대학교 물리치료학과) ;
  • 서삼기 (서남대학교 물리치료학과) ;
  • 이상호 (서남대학교 물리치료학과) ;
  • 정화수 (서남대학교 작업치료학과) ;
  • 임재헌 (서남대학교 물리치료학과)
  • Received : 2010.12.07
  • Accepted : 2010.12.21
  • Published : 2010.12.31
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Abstract

Purpose : We investigated the effects of the insole types on lower leg muscle activation during treadmill walking. The three insole types investigated for this study were normal insole, medial wedge insole, and viscoheel. Methods : Participants were assigned into three groups. People with foot transformation were excluded from this study. Each participant walked for ten minutes. The first day we applied a normal insole. On the second day, a medial wedge insole was applied. Finally, on the last day a viscoheel was applied. After walking on a treadmill for ten minutes, we measured muscle activation in lower leg muscles (gastrocnemius and tibialis anterior). Surface electromyography (EMG) was used to measure muscle activity. The data were analyzed using one-way analysis of variance (ANOVA) with repeated measures to determine the statistical significance. Results : The results of this study were summarized as follows. While walking on the treadmill, root mean square (RMS) values of the gastrocnemius when the viscoheel was applied were significantly lower than the other insole types. There was no significant difference for the RMS values for the tibialis anterior using viscoheel. The normal insole and viscoheel insole were significantly different in a post hoc analysis. However, there was no significant difference for normal insole and medial wedge insole. Conclusion : Using a viscoheel insole decreases muscle activity of the lower leg. Therefore, in conclusion, the viscoheel insole type reduces the load on the lower leg during walking.

Keywords

References

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