ABSTRACT
The International Organization for Standardization (ISO) standard 2631-1, ‘Mechanical Vibration and Shock-Evaluation of Human Exposure to Whole-Body Vibration-Part 1: General Requirements’, specify how to measure and analyze WBV. Action limits and exposure limits values are presented in Table 1 (Lewis & Johnson, 2012). To further evaluate transient shock vibration exposures in relation to human health, the International Organization for Standardization (ISO) published a new WBV standard, ISO 2631-5, in 2004. Long-term
1 INTRODUCTION
It is world-wide accepted that discomfort, reduced work efficiency and health impairments are problems found among professionals repeatedly exposed to Whole-Body Vibrations (WBV) (Melo & Miguel, 2000; Bernardo, et al., 2014). The risk depends on its intensity and duration. Several standards define procedures for measurement and evaluation of Whole-Body Vibration (WBV), providing “limit values” and “action levels”. However, there are no studies demonstrating what is the dose of WBV that can cause any specific disorder related to the magnitude, frequency, direction and duration of vibration exposure (Griffin, 2004).
