Background <p>The aim of this study was to investigate static and dynamic balance control and walking performance in iron and steel workers exposed to noise and vibration.</p> Methods <p>The iron and steel workers exposed to noise and vibration (Group I) (<i>n</i> = 61) and office workers not exposed to noise and vibration (Group II) (<i>n</i> = 38) aged 18–65&#xa0;years participated in this study. Balance was evaluated by a force platform and the Timed Up and Go (TUG) Test. The 10-Meter Walk Test (10MWT) was used for assessing gait speed.</p> Results <p>The backward and right limits of stability (LoS) scores in group I were significantly lower compared to group II (<i>p</i> &lt; 0.05). No significant difference was found in forward and left LoS and anteroposterior (AP) sway values (<i>p</i> &gt; 0.05). However, the mediolateral (ML) sway in perturbed surface with eyes closed condition was significantly greater in group I compared to group II (<i>p</i> = 0.034). In addition, the 10MWT and TUG test performance were significantly higher in group I compared to group II (<i>p</i> &lt; 0.05). In Group I, 22 participants (36.1%) had hearing loss. No significant difference was observed between workers with and without hearing loss for backward and right LoS, the ML sway for perturbated stability eyes closed condition, TUG test and 10MWT (<i>p</i> &gt; 0.05).</p> Conclusion <p>The present study showed that the postural stability problems may occur in workers who are regularly exposed to noise and vibration. Necessary arrangements should be made in the workplaces for heavy industry workers who are at risk of loss of balance by constant noise and vibration.</p>

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Postural control in iron and steel workers exposed to noise and vibration

  • Tayyibe Bican,
  • Nihat Yılmaz,
  • Tarık Özmen,
  • Emre Söylemez

摘要

Background

The aim of this study was to investigate static and dynamic balance control and walking performance in iron and steel workers exposed to noise and vibration.

Methods

The iron and steel workers exposed to noise and vibration (Group I) (n = 61) and office workers not exposed to noise and vibration (Group II) (n = 38) aged 18–65 years participated in this study. Balance was evaluated by a force platform and the Timed Up and Go (TUG) Test. The 10-Meter Walk Test (10MWT) was used for assessing gait speed.

Results

The backward and right limits of stability (LoS) scores in group I were significantly lower compared to group II (p < 0.05). No significant difference was found in forward and left LoS and anteroposterior (AP) sway values (p > 0.05). However, the mediolateral (ML) sway in perturbed surface with eyes closed condition was significantly greater in group I compared to group II (p = 0.034). In addition, the 10MWT and TUG test performance were significantly higher in group I compared to group II (p < 0.05). In Group I, 22 participants (36.1%) had hearing loss. No significant difference was observed between workers with and without hearing loss for backward and right LoS, the ML sway for perturbated stability eyes closed condition, TUG test and 10MWT (p > 0.05).

Conclusion

The present study showed that the postural stability problems may occur in workers who are regularly exposed to noise and vibration. Necessary arrangements should be made in the workplaces for heavy industry workers who are at risk of loss of balance by constant noise and vibration.