Functional quality assessment of whole-body vibration training devices based on instantaneous amplitude and frequency of photogrammetric vibration measurements

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Sanam Moghaddamnia
  • Robin Rofallski
  • Thomas Luhmann
  • Tobias S. Kaeding

Research Organisations

External Research Organisations

  • Turk-Alman Universitesi
  • Jade University of Applied Sciences
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Details

Original languageEnglish
Article number103935
JournalMedical Engineering and Physics
Volume111
Early online date29 Nov 2022
Publication statusPublished - Jan 2023

Abstract

The practical use of whole-body vibration training (WBVT) and such research may be negatively influenced by generated vibrations with amplitudes, frequencies, and/or patterns that deviate from preset adjustments on WBVT devices. This study examined whether prolonged regular use can generate respective deviations. Four WBVT devices, used for 19 months in a research project on the effects of WBVT, were analyzed using photogrammetry before start of the research project and after 19 months. Divergences between preset and measured amplitudes and frequencies were calculated for all measurements. To quantify how well the output of devices correlates with the target setting, the vibration characteristics were calculated. In particular, exact long-term measurements related to the vibration amplitude is conducted and analyzed for the first time, which has been found as an important measure of the device functional quality. One device had a significantly (p<0.01) larger machine run time than the other three. This one showed the most pronounced signs of functional impairments concerning instantaneous amplitudes, frequencies and the mode of vibration after prolonged use. These results based on photometric measurements underline again that prolonged use can result in divergences between preset and actual applied amplitudes, frequencies, mode of vibration and other accuracy measurement metrics.

Keywords

    Functional quality, Photogrammetric measurements, Prolonged use, Vibration characteristics, Whole-body vibration training

ASJC Scopus subject areas

Cite this

Functional quality assessment of whole-body vibration training devices based on instantaneous amplitude and frequency of photogrammetric vibration measurements. / Moghaddamnia, Sanam; Rofallski, Robin; Luhmann, Thomas et al.
In: Medical Engineering and Physics, Vol. 111, 103935, 01.2023.

Research output: Contribution to journalArticleResearchpeer review

Moghaddamnia S, Rofallski R, Luhmann T, Kaeding TS. Functional quality assessment of whole-body vibration training devices based on instantaneous amplitude and frequency of photogrammetric vibration measurements. Medical Engineering and Physics. 2023 Jan;111:103935. Epub 2022 Nov 29. doi: 10.1016/j.medengphy.2022.103935
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