Manufacturing Technology 2019, 19(5):860-867 | DOI: 10.21062/ujep/385.2019/a/1213-2489/MT/19/5/860

Identification of Changes in Mechanical Properties of Human Axial System Due to Stress and Relaxation Regime

Martin Svoboda1, Kateřina Van der Kamp2, Karel Jelen2, Milan Sapieta3
1 Faculty of Mechanical Engineering, Jan Evangelista Purkyně University in Ústí nad Labem, Czech Republic
2 Faculty of Physical Education and Sport, Charles University in Prague, Czech Republic
3 Faculty of Mechanical Engineering, University of Žilina, Slovak Republic

The aim of this work was to verify the applicability of the TVS (Transfer Vibration through Spine) methodology for registration of changes in viscoelastic characteristics of the axial system. The detection method consists in applying γ pulse pulses with a half-width of 5ms and then a harmonic excitation of continuously varying from 5Hz to 160Hz on vertebrae C7 and L5. This ripple is transmitted along the axial system and acceleration of all the spinous processes of the vertebrae is sensed by accelerometer sensors to propagate the wave between C7 and S1. On the basis of measured data (input excitation and its sensed response on spinous processes), the change of total viscoelastic parameters of the spine was evaluated before and after monotonous or other spinal strain or before and after relaxation. Existing results confirmed the TVS method is suitable for detection of mechanical changes of the axial system. It was proven transmission of ripples through the axial system of a person also changes by the influence of alternations created by monotonous or physical strain or conversely relaxation.

Keywords: vibration, monotonous strain, axial system, mechanical properties, spine, vibration transfer
Grants and funding:

Grant support No. UJEP-IGA-TC-2019-48-04-2- Jan Evangelista Purkyne University in Usti nad Labem and was also supported by the project: SGS 48206 15 2013-48-01.

Published: October 1, 2019  Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Svoboda M, Van der Kamp K, Jelen K, Sapieta M. Identification of Changes in Mechanical Properties of Human Axial System Due to Stress and Relaxation Regime. Manufacturing Technology. 2019;19(5):860-867. doi: 10.21062/ujep/385.2019/a/1213-2489/MT/19/5/860.
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. DUPUIS, H. (1989). Biodynamic behavior of the trunk and the abdomen during whole-body vibration. Acta Anaesthesiol. Scand., 1989. Suppl.90: 34-38 Go to original source...
    2. GILBERTOVÁ, S., MATOUŠEK, O. (2002). Ergonomie, optimalizace lidské činnosti, Grada: Praha, 2002. ISBN 80-247-0226-6.
    3. RAVNIK, D., OTÁHAL, S. (2005). Discomfort appearance and assesment during car driving, Neurodynamics and Neuroinformatics Studies (Second book on Micro Sleeps), Neural Network World - edice monografií, ICS AS CR : Prague 2005, 194-213, ISBN:80-903298-3-7, EAN 978-80-903298-3-6.
    4. SMIDT,E.A. a spol. (2009). Drivers' misjudgement of vigilance state during prolonged monotonous daytime driving. Accident analysis and prevention, 2009. 41(5): 1087-1093 Go to original source...
    5. LARUE, G.S. (2010). Predicting effects of monotony on driver's vigilance, Queensland University of Technology, disertační práce, 2010
    6. JOHNSON, D.A., NEVE, M. (2001). Analysis of possible lower lumbar strains caused by the structural properties of automobile seats, a review of some recent technical literature. J. of Manipulative Physiol. Ther., 2001. 24(9): 582-8 Go to original source...
    7. PANSKÁ, Š., KLOUČKOVÁ, K., ZEMAN, J., MAREŠOVSKÝ, L., JELEN, K. (2012). Mechanické zatěžování a stárnutí axiálního systému člověka: Identifikace změn pojivových tkání metodou TVS, Sborník příspěvků Stárnutí 2012, s.16
    8. ZEMAN, J. (2008) Metody neinvazivního měření vibrační přenosové funkce lidské páteře in vivo v poloze na břiše, dizertační práce, 2008
    9. VONDRÁŠEK, D., HADRABA, D., MATĚJKA, R., LOPOT, F., SVOBODA, M., JELEN, K. (2018). Uniaxial tensile testing device for measuring mechanical properties of biological tissue with stress-relaxation test under a confocal microscope, In: Manufacturing Technology, Vol. 18, No. 5 (2018) pp.866-872, ISSN: 1213-2489 Go to original source...
    10. BITTNER, V., ŠTRYNCL, R., JELEN, K., SVOBODA, M. (2018). Mathematical model of the RRR anthropomorphic mechanism for 2D biomechanical analysis of a deep squat and related forms of movement, In: Manufacturing Technology, Vol. 18, No. 5 (2018) pp.704-708, ISSN: 1213-2489 Go to original source...
    11. BITTNER, V., TUČEK, R., PANSKÁ, Š., SVOBODA, M., JELEN, K. (2017). Using the fourier transform in the analysis of vibration load tests of heterogeneous mechanical systems, Manufacturing Technology, Vol. 17, no. 6 (2017), ISSN: 1213-2489 Go to original source...

    This is an open access article distributed under the terms of the Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.


    Return to the content