Assessment of gait stability and preferred walking speed in virtual reality

• Autorzy: Wodarski Piotr , Jurkojć Jacek , Polechoński Jacek , Bieniek Andrzej , Chrzan Miłosz , Michnik Robert , Gzik Marek

Identyfikatory

DOI

10.37190/ABB-01490-2019-03

• Języki publikacji: EN

Abstrakty

EN

Analysis of human gait as well as diagnosis of human locomotion organ should always be conducted with velocity of gait equal to Preferred Walking Speed (PWS). The literature review shows that the PWS value is not the same in real and virtual environment. The aim of this study was to determine PWS values in both environments and to specify values of parameters used in equations enabling PWS calculations on the basis of lower limb length. Methods: Research-related tests involved 40 subjects walking on the treadmill and wearing HMD goggles. The spatial scenery made participants feel like during a walk in the park. The tests included measurements of displacements of the COP, allowing for the calculation of the Lyapunov exponent and Floquet Multiplier. Both coefficients were used to identify stability at various gait velocities. Results: The analysis revealed that the PWS in relation to gait on the treadmill with VR was lower than the PWS without VR. The final stage of research involved the determination of new values of coefficients of the formula enabling the identification of the velocity of comfort of gait in VR. Conclusions: Obtained results proved that PWS in real and virtual environment are different. The lower values were obtained for measurements in VR. On the basis of these results, value of the “a” coefficient, used in PWS calculations on the basis of lower limb length, was re-determined. The new value makes it possible to assess PWS for gait conducted on treadmill in virtual environment, what can be very important in gait evaluation.

Słowa kluczowe

EN

gait stability; gait on treadmill; preferred walking speed; gait variability

PL

stabilność chodu; chód na bieżni; prędkość marszu

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2020
• Tom: Vol. 22, no. 1
• Strony: 127--134
• Opis fizyczny: Bibliogr. 25 poz., rys., wykr.

Twórcy

autor

Wodarski Piotr

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomechatronics, Gliwice, Poland

autor

Jurkojć Jacek

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomechatronics, Gliwice, Poland

autor

Polechoński Jacek

• Institute of Sport Sciences, The Jerzy Kukuczka Academy of Physical Education in Katowice, Katowice, Poland

autor

Bieniek Andrzej

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomechatronics, Gliwice, Poland

autor

Chrzan Miłosz

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomechatronics, Gliwice, Poland

autor

Michnik Robert

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomechatronics, Gliwice, Poland

autor

Gzik Marek

• Silesian University of Technology, Faculty of Biomedical Engineering, Department of Biomechatronics, Gliwice, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).