| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 267.91 KB | Adobe PDF |
Advisor(s)
Abstract(s)
Postural instability due exposure to whole body vibrations (WBV) is very common among earthmoving machine operators. The aim of this study was to analyze the influence of occupational exposure to WBV in the postural stability. The study included two groups of healthy volunteers, which included six experienced earthmoving machine operators (exposed group) and five students recruited from an University (non exposed group). The standing balance was assessed by measuring the centre of pressure (CoP) displacement in a single-task (eyes-open/eyes-closed) during two experimental sessions at the beginning and at the end of the week. In general, the results showed that the standing balance of exposed group was worse than the non exposed group, in the CoP displacement in the medium-lateral direction, which may be due to the vibration input was, predominantly, in the y-axis. However, the results also demonstrated that exposed group developed body compensatory strategies associated to duration of exposure and years performing similar tasks. This evidence was an important contribute to further studies and to plan future ergonomic interventions related to work organization factors as work/rest schemes.
Description
Keywords
Balance Single task Exposure Vibration Centre of pressure
Citation
Ferreira, F., Vila-Chã, C., Santos, R., & Santos, J. (2017). Influência da exposição profissional a vibrações corpo inteiro no equilíbrio de manobradores de máquinas de terraplanagem. Em P. Arezes, J. S. Baptista, M. P. Barroso, P. Carneiro, P. Cordeiro, N. Costa, R. Melo, A. S. Miguel, & G. Perestrelo (Eds.), Occupational Safety and Hygiene SHO2017—Proceedings book (Vol. 1, pp. 180–181). Sociedade Portuguesa de Segurança e Higiene Ocupacionais (SPOSHO).
Publisher
Sociedade Portuguesa de Segurança e Higiene Ocupacionais (SPOSHO)