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[Vibration hazards in quarry workers].

H Sakakibara, M Miyao, T Nakagawa

    Sangyo Igaku. Japanese Journal of Industrial Health
    |March 1, 1984
    PubMed
    Summary

    Quarry workers exposed to high vibration levels from chipping hammers and rock drills experience high rates of Raynaud

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    Area of Science:

    • Occupational Health
    • Ergonomics
    • Environmental Health

    Context:

    • Vibration hazards are prevalent in quarrying operations.
    • Chipping hammers and rock drills are common tools exposing workers to significant vibration.
    • A cohort of male quarry workers was studied over time.

    Purpose:

    • To assess the prevalence and trends of vibration-related health issues in quarry workers.
    • To investigate the relationship between exposure duration and health outcomes.
    • To compare health complaints between two survey periods (1976-77 and 1981-82).

    Summary:

    • High prevalence of Raynaud's phenomenon (36.2%) and upper extremity numbness (53.6%) was observed in 69 male quarry workers.
    • Increased daily exposure (2-4 hours) to vibration from tools like chipping hammers and rock drills was linked to these health issues.
    • Over a 5-year period, the frequency of Raynaud's attacks and prevalence of numbness, pain, and chills increased, particularly with higher daily exposure.

    Impact:

    • Findings highlight the significant health risks associated with prolonged vibration exposure in the quarrying industry.
    • The study underscores the need for effective vibration control measures and ergonomic interventions.
    • Results indicate a dose-response relationship between vibration exposure and the development/exacerbation of upper extremity disorders.

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