DOI QR코드

DOI QR Code

편평발과 정상발의 무게중심한계 비교

Comparison of the Limitation of Stability between Flatfeet and Neutral Feet

  • 한진태 (경성대학교 물리치료학과)
  • Han, Jin-Tae (Department of Physical Therapy, Kyungsung University)
  • 투고 : 2017.10.12
  • 심사 : 2017.10.30
  • 발행 : 2017.12.31

초록

Purpose: Flatfeet are one of the risk factors of foot dysfunction and postural imbalance. The purpose of this study was to compare the limitation of stability (LOS) for the center of gravity (COG) between flatfeet and neutral feet on stable and unstable support surfaces. Methods: The study included 26 healthy, adult male participants: 14 with normal feet and 12 with flatfeet. The subjects were asked to incline the trunk maximumly to the left, right, anterior, and posterior directions and were asked to keep their feet on the floor with the knee extension. The subjects had 30 seconds of rest time between the tasks. The LOS (anterior, posterior, left, right) of COG was measured by Balance Trainer (BT4, Hur-labs, Tampere, Finland). An independent t- test was used to compare the LOS of COG between flatfeet and normal feet on stable and unstable support surfaces, respectively. Results: The LOS of the flatfeet group was generally decreased on stable support surfaces as compared to that of neutral feet, but it was not significantly different (p>0.05), while the LOS of the flatfeet group was significantly decreased compared to that of neutral feet on unstable support surfaces (p<0.05). Conclusion: This study suggested that the LOS of individuals with flatfeet may be decreased on unstable support surfaces and the postural balance of the flatfeet group may easily be disturbed on an unstable support surface.

키워드

참고문헌

  1. Chen YC, Lou SZ, Huang CY, et al. Effects of foot orthoses on gait patterns of flat feet patients. Clinical Biomechanics. 2010;25(3):256-270. https://doi.org/10.1016/j.clinbiomech.2009.11.004
  2. Cobb SC, Tis LL, Johnson BF, et al. The effect of forefoot varus on postural stability. Journal of Orthopaedics Sports Physical Therapy. 2004;34(2):79-85. https://doi.org/10.2519/jospt.2004.34.2.79
  3. Cote KP, Brunet ME, Gansneder BM, et al. Effects of pronated and supinated foot postures on static and dynamic postural stability. Journal of Athletic Training. 2005;40(1):41-46.
  4. Diener HC, Dichgans J. On the role of vestibular, visual and somatosensory information for dynamic postural control in human. Progress in Brain Research. 1988;76(1):253-262.
  5. Hasan SS, Robin DW, Szurkus DC, et al. Simultaneous measurement of body center of pressure and center of gravity during upright stance. Park I: methods. Gait and Posture. 1996;4(1):1-10. https://doi.org/10.1016/0966-6362(95)01030-0
  6. Horak FB. Postural orientation and equilibrium: what do we need to know about neural control of balance to prevent fall? Age and Ageing. 2006;35(2):7-11.
  7. Ivanenko YP, Levik YS, Talis VL, et al. Human equilibrium on unstable support: the importance of feet-support interaction. Neuroscience Letters. 1997;235(3):109-112. https://doi.org/10.1016/S0304-3940(97)00721-0
  8. Jeong DH, Kwon HC. A comparison of the limits of stability associated with aging. Journal of Korean Physical Therapy. 1999;11(2):139-147.
  9. Kanatli UU, Gozil RR, Besli KK, et al. The relationship between the hindfoot angle and the medial longitudinal arch of the foot. Foot & Ankle International. 2006; 27(8):623-627. https://doi.org/10.1177/107110070602700810
  10. Kim JA, Lim OB, Yi CH. Difference in static and dynamic stability between flexible flatfeet and neutral feet. Gait and Posture. 2015;41(2):546-550. https://doi.org/10.1016/j.gaitpost.2014.12.012
  11. Lakstein D, Fridman T, Ziv YB, et al. Prevalence of anterior knee pain and pes planus in Israel defence recruits. Military Medicine. 2010;175(11):855-857. https://doi.org/10.7205/MILMED-D-d0-900145
  12. Ledoux WR, Hillstrom HJ. The distributed plantar vertical force of neutrally aligned and pes planus feet. Gait and Posture. 2002;15(1):1-9. https://doi.org/10.1016/S0966-6362(01)00165-5
  13. Lee WJ, Kong YS, Ko YM, et al. Effect of unstable surface exercise on trunk posture and balance ability in patients with scoliosis: after six months follow-up. Journal of Korean Physical Therapy. 2013;25(5):232-238.
  14. Mall NA, Hardaker WM, Nunley JA, et al. The reliability and reproducibility of foot type measurements using a mirrored foot photo box and digital photography compared to caliper measurements. Journal of Biomechanics. 2007;40(5):1171-1176. https://doi.org/10.1016/j.jbiomech.2006.04.021
  15. Payehdar S, Saeedi H, Ahmadi A, et al. Comparing the immediate effects of UCBL and modified foot orthoses on postural sway in people with flexible flatfoot. Prosthetics and Orthotics International. 2016;40(1):117-122. https://doi.org/10.1177/0309364614538091
  16. Qeen R, Mall NA, Nunley JA, et al. Differences in plantar loading between flat and normal feet during different athletic tasks. Gait and Posture. 2009;29(4):582-586. https://doi.org/10.1016/j.gaitpost.2008.12.010
  17. Shiang TY, Lee SH, Lee SJ. Evaluating different footprint parameters as a predictor of arch height. IEEE Engineering in Medicine Biology. 1998;17(6):62-66.
  18. Shumway-Cook A, Woollacott MH. Motor control: translating research into clinical practice. Philadelphia. Lippincott Williams & Wilkins. 2007.
  19. Suh TS. Reseach of flatfoot on a adolescence. Journal of Korean Physical Therapy. 1997;9(1):97-101.
  20. Tome J, Nawoczenski DA, Flemister A, et al. Comparison of foot kinematics between subjects with posterior tibilalis tendon dysfunction and healthy controls. Journal of Orthopaedic & Sports Physical Therapy. 2006;36(9):635-644. https://doi.org/10.2519/jospt.2006.2293
  21. Tsai LC, Yu B, Mercer VS, et al. Comparison of different structural foot types for measures of standing postural control. Journal of Orthopaedics Sports Physical Therapy. 2006;36(12):942-953. https://doi.org/10.2519/jospt.2006.2336
  22. Yoon KS, Park SD. The effects of ankle mobilization and active stretching on the difference of weight-bearing distribution, low back pain and flexibility in pronated-foots subjects. Journal of Exercise Rehabilitation. 2013;9(2):292-297. https://doi.org/10.12965/jer.130013