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Postural Stability Effects of Random Vibration at the Feet of Construction Workers in Simulated Elevation by P. Simeonov; H. Hsiao; J. Powers; D. Ammons; T. Kau; A. Amendola is a Psychology article available to read on EtoBox.

What is Postural Stability Effects of Random Vibration at the Feet of Construction Workers in Simulated Elevation about?

The risk of falls from height on a construction site increases under conditions which degrade workers' postural control. At elevation, workers depend heavily on sensory information from their feet to maintain balance. The study tested two hypotheses: "sensory enhancement" e sub-sensory (undetectable) random mechanical vibrations at the plantar surface of the feet can improve worker's balance at elevation; and "sensory suppression" e supra-sensory (detectable) random mechanical vibrations can have a degrading effect on balance in the same experimental settings. Six young (age 20e35) and six aging (age 45e60) construction workers were tested while standing in standard and semi-tandem postures on instrumented gel insoles. The insoles applied sub-or suprasensory levels of random mechanical vibrations to the feet. The tests were conducted in a surroundscreen virtual reality system, which simulated a narrow plank at elevation on a construction site. Upper body kinematics was assessed with a motion-measurement system. Postural stability effects were evaluated by conventional and statistical mechanics sway measures, as well as trunk angular displacement parameters. Analysis of variance did

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Author

P. Simeonov; H. Hsiao; J. Powers; D. Ammons; T. Kau; A. Amendola

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0003-6870)

Published

2011

Language

EN

Field

Psychology (Social Sciences)