Two-Dimensional Automatic Control Modeling of a Posture Control System

• Autorzy: Park K. S. , Kim U. H.
• 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.

Słowa kluczowe

EN

posture control model; posturography; perturbation; parameter identification; model fitness; stability; predictability

PL

model kontroli; postura; posturografia; identyfikacja parametrów; fitness

• Wydawca: Taylor & Francis
• Czasopismo: International Journal of Occupational Safety and Ergonomics
• Rocznik: 1998
• Tom: Vol. 4, No. 4
• Strony: 485--498
• Opis fizyczny: Bibliogr. 29 poz., rys., tab., wykr.

Twórcy

autor

Park K. S.

• Korea Advanced Institute of Science & Technology, Korea

autor

Kim U. H.

• Korea Advanced Institute of Science & Technology, Korea

Bibliografia

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