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Effects of Forefoot Rocker Shoes with Metatarsal Bar on Lower Extremity Muscle Activity and Plantar Pressure Distribution

중족골 바 형태의 전족부 라커 신발이 하지 근 활성도 및 족저압력 분포에 미치는 영향

  • Park, In-Sik (Department of Healthcare Engineering, Graduate School of Chonbuk National University) ;
  • Jung, Ji-Yong (Department of Healthcare Engineering, Graduate School of Chonbuk National University) ;
  • Jeon, Keun-Hwan (Department of Healthcare Engineering, Graduate School of Chonbuk National University) ;
  • Won, Yong-Gwan (School of Electronics and Computer Engineering, College of Engineering, Chonnam National University) ;
  • Kim, Jung-Ja (Division of Biomedical Engineering, College of Engineering, Chonbuk National University)
  • 박인식 (전북대학교 대학원 헬스케어공학과) ;
  • 정지용 (전북대학교 대학원 헬스케어공학과) ;
  • 전근환 (전북대학교 대학원 헬스케어공학과) ;
  • 원용관 (전남대학교 공과대학 전자컴퓨터공학부) ;
  • 김정자 (전북대학교 공과대학 바이오메디컬공학부)
  • Received : 2012.01.31
  • Accepted : 2012.03.23
  • Published : 2012.03.31

Abstract

The purpose of this study was to evaluate the effects of forefoot rocker shoes equipped with a metatarsal bar on lower extremity muscle activity and plantar pressure distribution. Ten healthy women in the age of twenties were participated in this study as the subjects. All subjects walked on a treadmill(Gait Trainer, BIODEX, USA) wearing normal shoes and metatarsal bar shoes, during which the plantar pressure distribution and muscle activity were measured. Using Pedar-X system(Novel Gmbh, Germany), the plantar pressure was measured for six regions of the foot: forefoot, midfoot, rearfoot, 1st metatarsal, 2-3th metatarsal, and 4-5th metatarsal, and for each sub-region, 4 features such as maximum force, contact area, peak pressure, and mean pressure were analyzed based on the plantar pressure. EMG(Electromyography) activity was measured by attaching surface electrodes to the rectus femoris, biceps femoris, tibialis anterior, and gastrocnemius medial head, and magnitude of muscle contraction was analyzed in IEMG(Integrated EMG) value. The results show that the maximum force, contact area, peak pressure, and mean pressure in the midfoot all increased while maximum force, peak pressure, contact area, mean pressure in the 1st metatarsal and 2-3th metatarsal all decreased when wearing functional shoes. Also, muscle activities in the four muscles were all decreased when wearing the functional shoes. This paper suggests that forfoot rocker shoes equipped with a metatarsal bar can help disperse the high pressure and absorb the shock to the foot as well as give positive influence on gait pattern and postural stability by reducing muscle fatigue during walking.

Keywords

References

  1. An, S. Y., Kim, S. B., & Lee. K. K.(2007). A comparative study of characters of muscle activity in lower limb and gait pattern on type of heel rockers. Korean Journal of Sport Biomechanics, 17(1), 111-119. https://doi.org/10.5103/KJSB.2007.17.1.111
  2. Choi, K. J., & Kwon, H. J.(2003). Sport biomechanical comparative analyses between general sporting shoe and functional walking shoe. Korean Journal of Sport Biomechanics, 13(2), 161-173. https://doi.org/10.5103/KJSB.2003.13.2.161
  3. Choi, S. B., & Lee, W. J.(2001). Influence of Shoe Shape and Gait Characteristics on feet Discomforts according to Women's Foot Type. The Costume Culture Association, 10(3), 306-317.
  4. Deshaies, A., Roy, P., Symeonidis, P. D., LaRue, B., Murphy, N., & Anctil, E.(2011). Metatarsal bars more effective than metatarsal pads in reducing impulse on the second metatarsal head. The Foot, 21(4), 172-175. https://doi.org/10.1016/j.foot.2011.05.001
  5. Erdemir, A., Saucerman, J. J., Lemmon, D., Loppnow, B., Turso, B., Ulbrecht, J. S., Cavanagh, P. R.(2005). Local plantar pressure relief in therapeutic footwear: design guidelines from finite element models. Journal of Biomechanics, 38(9), 1798-1806. https://doi.org/10.1016/j.jbiomech.2004.09.009
  6. Fuhrmann, R. A., Roth, A., & Venbrocks, R. A.(2005). Metatarsalgia. Differential diagnosis and therapeutic algorithm. Orthopade, 34(8), 769-772.
  7. Hayafune, H., Hayafune, Y., & Jacob, H. A. C.(1999). Pressure and force distribution characteristics under the normal foot during the push-off phase in gait. The Foot, 9(2), 88-92. https://doi.org/10.1054/foot.1999.0518
  8. Jacob, H. A. C., & Zollinger, H.(1992). Biomechanics of the foot-forces in the forefoot during walking and their clinical relevance. Orthopade, 21(1), 75-80.
  9. Landry, S. C., Nigg, B. M., & Tecante, K. E.(2010). Standing is an unstable shoe increases postural sway and muscle activity of selected smaller extrinsic foot muscles. Gait & Posture, 32(2), 215-219. https://doi.org/10.1016/j.gaitpost.2010.04.018
  10. Lee, C. H., & Sung, B. J.(2008). Biomechanical analysis according to the types of shoe and speed. The Korean Journal of Physical Education, 47(2), 421-433.
  11. Lee, C. H.(2009). Kinetic Difference between Normal-design Running Shoes and Spring-loaded Running Shoes. Korean Journal of Sport Biomechanics, 19(3), 581-592. https://doi.org/10.5103/KJSB.2009.19.3.581
  12. Menz, H. B., & Sherrington, C.(2000). The footwear assessment form; a reliable clinical tool to assess footwear characteristics of relevance to postural stability in older adults. Clinical Rehabilitation, 14(6), 657-664. https://doi.org/10.1191/0269215500cr375oa
  13. Morag, E., & Cavanagh, P. R.(1999). Structural and functional predictors of regional peak pressures under the foot during walking. Journal of Biomechanics, 32(4), 359-370. https://doi.org/10.1016/S0021-9290(98)00188-2
  14. Murley, G. S., Landorf, K. B., Menz, H. B., & Bird, A. R.(2009). Effect of foot posture, foot orthoses and footwear on lower limb muscle activity during walking and running: a systematic review. Gait & Posture, 29(2), 172-187. https://doi.org/10.1016/j.gaitpost.2008.08.015
  15. Nigg, B. Hintzen, S., Ferber R.(2006). Effect of an unstable shoe construction on lower extremity gait characteristics. Clinical Biomechanics, 21(1), 82-88. https://doi.org/10.1016/j.clinbiomech.2005.08.013
  16. O′Malley, N. T., FitzPatrick, D., Quinlan, J., & O′Rourke, S. K.(2006). Assessment of the influence of shoe design on lumbar spine motion. Journal of Biomechanics, 39(1), 542-543.
  17. Owings, T. M., Woerner, J. L., Frampton, J. D., Cavanagh, P. R., & Botek, G.(2008). Custom therapeutic insoles based on both foot shape and plantar pressure measurement provide enhanced pressure relief. Diabetes Care, 31(5), 839-844. https://doi.org/10.2337/dc07-2288
  18. Park, K. R., An, S. Y., & Lee, K. K.(2006). Effects of 12-week Wearing of the Unstable Shoes on the Standing Posture and Gait Mechanics. Korean Journal of Sport Biomechanics, 16(3), 165-172. https://doi.org/10.5103/KJSB.2006.16.3.165
  19. Park, S. B., Lee, K. D., Kim, D. W., Yoo, J. H., Kim, K. H., An, C. S., & Lee, T. Y.(2010). Biomechanical Analysis of Trail Running Shoes Applied to Korean Shoe-Lasts. Korean Journal of Sport Biomechanics, 20(2), 221-230. https://doi.org/10.5103/KJSB.2010.20.2.221
  20. Park, S. B., Lee, K. D., Kim, D. W., Yoo, J. H., & Kim, K. H.(2011). Comparative Analysis of Foot Pressure Distribution by Functional Insole to be Transformed and Restored During Walking. Korean Journal of Sport Biomechanics, 21(2), 231-241. https://doi.org/10.5103/KJSB.2011.21.2.231
  21. Perry, J.(1992). Gait Analysis: normal and pathological function. New Jersey: SLACK, INC.
  22. Putti, A. B., Amold, G. P., Cochrane, L., & Abboud, R. J.(2007). The Pedar in-shoe system: repeatability and normal pressure values. Gait & Posture, 25(3), 401-405. https://doi.org/10.1016/j.gaitpost.2006.05.010
  23. Ramanathan, A. K., Kiran, P., Arnold, G. P., Wang, W., & Abboud, R. J.(2010). Repeatability of the Pedar-X in-shoe pressure measuring system. Foot and Ankle Surgery, 16(2), 70-73. https://doi.org/10.1016/j.fas.2009.05.006
  24. Romkes, J., Rudmann, C., & Reinald, B. R.(2006). Change in gait and EMG when walking with the Masai Barefoot Technique. Clincial Biomechanics, 21(1), 75-81. https://doi.org/10.1016/j.clinbiomech.2005.08.003
  25. Ryu, T., Choi, H. S., Choi, H., & Chung, M. K.(2006). A comparison of gait characteristics between Korean and Western people for estaglishing Korean gait reference data. Industrial Ergonomics, 36, 1023-1030. https://doi.org/10.1016/j.ergon.2006.09.013
  26. Stefanyshyn, D. J., & Nigg, B. M.(2000). Energy aspects associated with sport shoes. Sprotverletz Sportschaden, 14(3), 82-89. https://doi.org/10.1055/s-2000-7867
  27. Wilson, M., Rome, K., Hodgson, D., & Ball, P.(2008). Effect of textured foot orthotics on static and dynamic postural stability in middle-aged females. Gait & Posture, 27(1), 36-42. https://doi.org/10.1016/j.gaitpost.2006.12.006

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