Analysis and modelling of muscles motion during whole body vibration

M. Cesarelli*, A. Fratini, P. Bifulco, A. la Gatta, M. Romano, G. Pasquariello

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

The aim of the study is to characterize the local muscles motion in individuals undergoing whole body mechanical stimulation. In this study we aim also to evaluate how subject positioning modifies vibration dumping, altering local mechanical stimulus. Vibrations were delivered to subjects by the use of a vibrating platform, while stimulation frequency was increased linearly from 15 to 60Hz. Two different subject postures were here analysed. Platform and muscles motion were monitored using tiny MEMS accelerometers; a contra lateral analysis was also presented. Muscle motion analysis revealed typical displacement trajectories: motion components were found not to be purely sinusoidal neither in phase to each other. Results also revealed a mechanical resonant-like behaviour at some muscles, similar to a second-order system response. Resonance frequencies and dumping factors depended on subject and his positioning. Proper mechanical stimulation can maximize muscle spindle solicitation, which may produce a more effective muscle activation.

Original languageEnglish
Number of pages9
JournalEURASIP Journal on Advances in Signal Processing
Volume2010
DOIs
Publication statusPublished - 12 Nov 2010

Bibliographical note

© 2010 The Author(s). This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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