Vibration syndrome in workers using pneumatic chipping and grinding tools.
Behrens-V; Taylor-W; Wasserman-DE
Vibration effects on the hand and arm in industry. Brammer AJ, Taylor W, eds. New York: John Wiley and Sons, 1981 Jan; :147-155
The occurrence of vibration syndrome was studied among employees of iron (7439896) foundries (SIC-3322) and a shipyard foundry (SIC- 3559). Workers using pneumatic chipping and grinding tools were given a questionnaire about vibration symptoms and a general medical examination. Sensory tests were performed on hands and fingers. Latencies of symptoms were determined through detailed histories. After exclusion of workers with confounding medical conditions, no comparison workers had Raynaud's phenomenon or any other signs of vibration syndrome. Prevalence in the iron foundry workers was 47 percent. Among shipyard workers, 19 percent had vibration syndrome symptoms. The median latency from start to exposure to tingling was 7 months in the iron foundries. Median latency to blanching of the fingers was 17 months while latency to numbness was 9 months. In the shipyard foundry median latency from the start of employment to tingling was 9.1 years. For numbness the latency was 12 years and for blanching, 16.8 years. All foundry workers within sufficient time had advanced to the blanching stage. In the shipyard foundry the same time interval did not result in equivalent blanching. Arterial symptoms were more pronounced in foundry workers while neurological symptoms were more prevalent in the shipyard foundry. The authors conclude that the reasons for the difference in development of vibration syndrome depend on complex engineering and industrial differences.
Vibration; Ear-disorders; Physiology; Sound-analyzers; Physiological-measurements; Workplace-studies; Audiological-testing; Noise-pollution; Analytical-models; Quantitative-analysis
Book or book chapter
Vibration effects on the hand and arm in industry