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Two-Dimensional Automatic Control Modeling of a Posture Control System

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A posture control model has been developed on the basis of the 2-dimensional feedback control theory. Human postural characteristics were investigated in 5 healthy participants. Tests were performed with eyes open and eyes closed. After 5 s of quiet standing, each participant was unexpectedly pulled forward by 30 mm at his pelvis height and then released. Postural sway was measured over 20 s at a rate of 100 per second. Transfer functions to represent the posture control characteristic were identified by the least squares' method. These showed good results of the model's fitness, predictability, and stability. The response of the eyes-closed condition to perturbation is more oscillatory than that of the eyes-open condition. It seems that the model identified could be applicable to ergonomics, sports, or clinical situations.
Rocznik
Strony
485--498
Opis fizyczny
Bibliogr. 29 poz., rys., tab., wykr.
Twórcy
autor
  • Korea Advanced Institute of Science & Technology, Korea
autor
  • Korea Advanced Institute of Science & Technology, Korea
Bibliografia
  • 1.Astrom, K.J., & Wittenmark, B. (1984). Computer controlled systems. Englewood Cliffs, NJ: Prentice-Hall.
  • 2.Dichgans, J., Mauritz, K.H., Allum, J.H.J., & Brandt, T. (1976). Postural sway in normals and atactic patients: Analysis of the stabilizing and destabilizing effects of vision. Agressologie, 17-C, 15-24.
  • 3.Diener, H.C., Bootz, F., Dichgans, J., & Bruzek, W. (1983). Variability of postural “reflexes” in humans. Experimental Brain Research, 52, 423-428.
  • 4.Diener, H.C., & Dichgans, J. (1988). On the role of vestibular, visual and somatosensory information for dynamic postural control in humans. In O. Pompeiano & J.H.J. Allum (Eds.), Progress in brain research, 76, 253-262.
  • 5.Diener, H.C., Dichgans, J., Bootz, F., & Bacher, M. (1984). Early stabilization of human posture after a sudden disturbance: Influence of rate and amplitude of displacement. Experimental Brain Research, 56, 126-134.
  • 6.Diener, H.C., Dichgans, J., Bruzek, W., & Selinka, H. (1982). Stabilization of human posture during induced oscillations of the body. Experimental Brain Research, 45, 126-132.
  • 7.Dietz, V., Horstmann, G.A., & Berger, W. (1989). Interlimb coordination of leg-muscle activation during perturbation of stance in humans. Journal of Neurophysiology, 62, 680-693.
  • 8.Ishida, A., & Miyazaki, S. (1987). Maximum likelihood identification of a posture control system. IEEE Transactions on Biomedical Engineering, BME-34, 1-5.
  • 9.Johansson, R., & Magnusson, M. (1991). Human postural dynamics. CRC Critical Reviews in Biomedical Engineering, 18, 413-437.
  • 10.Johansson, R., Magnusson, M., & Akesson, M. (1988). Identification of human postural dynamics. IEEE Transactions on Biomedical Engineering, 35, 858-869.
  • 11.Kapteyn, T.S., & Wit, G. (1972). Posturography as an auxiliary in vestibular investigation. Acta Otolaryngologica, 73, 104-111.
  • 12.Keshner, E.A., Woollacott, M.H., & Debu, B. (1988). Neck, trunk and limb muscle reponses during postural perturbations in humans. Experimental Brain Research, 71, 455-466.
  • 13.Lee, W.A. (1989). A control systems framework for understanding normal and abnormal posture. American Journal of Occupational Therapy, 43, 291-301.
  • 14.Maki, B.E. (1986). Selection of perturbation parameters for identification of the posturecontrol system. Medical Biological Engineering & Computing, 24, 561-568.
  • 15.Maki, B.E., Holliday, P.J., & Fernie, G.R. (1987). A posture control model and balance test for the prediction of relative postural stability. IEEE Transactions on Biomedical Engineering, BME-34, 797-810.
  • 16.Moore, S.P., Rushmer, D.S., Windus, S.L., & Nashner, L.M. (1988). Human automatic postural response: Responses to horizontal perturbations of stance in multiple directions. Experimental Brain Research, 73, 648-658.
  • 17.Murray, M.P., Seireg, A.A., & Sepic, S.B. (1975). Normal postural stability and steadiness: Quantitative assessment. Journal of Bone and Joint Surgery, 57(a), 510-515.
  • 18.Nashner, L.M. (1971). A model describing vestibular detection of body sway motion. Acta Otolaryngologica, 72, 429-436.
  • 19.Nashner, L.M. (1972). Vestibular postural control model. Kybernetik, 10, 106-110.
  • 20.Nashner, L.M. (1973). Vestibular and reflex control of normal standing. In R.B. Stein, K.B. Pearson, R.S. Smith, & J.B. Redford (Eds.), Control of posture and locomotion (pp. 291-308). New York: Plenum.
  • 21.Nashner, L.M. (1977). Fixed patterns of rapid postural responses among leg muscles during stance. Experimental Brain Research, 30, 13-24.
  • 22.Nashner, L.M., Shupert, C.L., & Horak, F.B. (1988). Head-trunk movement coordination in the standing posture. In O. Pompeiano & J.H. Allum (Eds.), Progress in brain research (Vol. 76, pp. 243-251). Amsterdam: Elsevier.
  • 23.Nashner, L.M ., W oollacott, M., & Tuma, G. (1979). Organization of rapid responses to postural and locomotor-like perturbations of standing man. Experimental Brain Research, 36, 463-476.
  • 24.Peeters, H.P.M., Caberg, H.B., & Mol, J.M.F. (1985). Evaluation of biomechanical models in posturography. Medical Biological Engineering & Computing, 23, 469-473.
  • 25.Seidel, H., Brauer, D., Bastek, R., & Issel, I. (1978). On the quantitative characterization of human body sway in experiments with long-term performance. Acta Biologica et Medical Germanica, 37, 1551-1561.
  • 26.Thomas, D.P., & Whitney, R.J. (1959). Postural movements during normal standing in man. Journal of Anatomy, 93, 524-539.
  • 27.Winter, D.A. (1990). Biomechanics of motor control and human movement (2nd ed.). New York: Wiley-Interscience.
  • 28.Wolfson, L.I., Whipple, R., Amerman, P., & Klenberg, A. (1986). Stressing the postural response: A quantitative method for testing balance. Journal of American Geriatrics Society, 34, 845-850.
  • 29.Woollacott, M.H., & Shumway-Cook, A. (1990). Changes in posture control across the life span-A systems approach. Physical Therapy, 70, 799-807.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-4507a9a7-cacc-4da9-ba3a-8b682802cb6e
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