The Activity of the Postural Control System and Its Compensation in the Morbid Obese Subjects

• Authors: M. Bosek , S. Pierściński , S. Dąbrowiecki , B. Grzegorzewski
• Languages of publication: EN

Abstracts

EN

The method based on two-dimensional stochastic process was used to examine the short-term postural sway under eyes-open and eyes-closed conditions. Obtained parameters, i.e., matrix of the fluctuation strength and friction coefficient, describe the stochastic activity of the muscles of the lower limbs as well as mechanisms compensating that activity. The standard force platform was used to measure the center of pressure displacements. In this investigation 17 control subjects and 22 morbid obese subjects were included. It is shown that the method is useful in the study of the postural control system of morbid obese subjects. The muscles responsible for postural control in these subjects have exhibited larger stochastic activity, than these muscles in non-obese subjects. However morbid obese as well as non-obese subjects compensate additionally enlarged level of muscles activity after closure of their eyes. The morbid obesity causes an increase of the muscles' force but does not cause the impairment of the postural control system.

Keywords

EN

87.85.gj

Discipline

• 87.85.gj: Movement and locomotion

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 119
• Issue: 6A
• Pages: 932-935

Dates

published

2011-06

Contributors

author

M. Bosek

• Department of Biophysics, Collegium Medicum in Bydgoszcz, Nicholaus Copernicus University, Jagiellońska 13, 85-067 Bydgoszcz, Poland

author

S. Pierściński

• Department of General and Endocrine Surgery, University Hospital, Collegium Medicum in Bydgoszcz Nicholaus Copernicus University, M. Skłodowskiej-Curie 9, 85-094 Bydgoszcz, Poland

author

S. Dąbrowiecki

• Department of General and Endocrine Surgery, University Hospital, Collegium Medicum in Bydgoszcz Nicholaus Copernicus University, M. Skłodowskiej-Curie 9, 85-094 Bydgoszcz, Poland

author

B. Grzegorzewski

• Department of Biophysics, Collegium Medicum in Bydgoszcz, Nicholaus Copernicus University, Jagiellońska 13, 85-067 Bydgoszcz, Poland

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Identifiers

DOI

10.12693/APhysPolA.119.932