Evaluating risk of lumbar injury among dumper operators from occupational exposure to low-frequency seat vibration

Amit Sharma (), Ashish Kumar (), Bibhuti Bhusan Mandal () and Jhareswar Maiti ()
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Amit Sharma: IIT Kharagpur
Ashish Kumar: IIT Kharagpur
Bibhuti Bhusan Mandal: IIT Kharagpur
Jhareswar Maiti: IIT Kharagpur

International Journal of System Assurance Engineering and Management, 2025, vol. 16, issue 4, No 1, 1357-1368

Abstract: Abstract Background Workplace exposure to low-frequency whole-body vibration (WBV) is closely associated with musculoskeletal disorders, particularly chronic low back pain (LBP) and lumbar disc herniation. Current biomechanical models assess health risks, but lack validation against actual incidence rates in affected populations. Methodology Self-reported LBP among dumper operators (n = 61) was assessed using the Standard Nordic Questionnaire. WBV exposure levels were measured in an open-cast coal mine, and biomechanical models predicted health risks related to WBV and its cumulative impact on the lumbar spine. Structured interviews gathered data on individual characteristics and work-related risk factors. To explore the influence of these factors on the risk of lumbar injury (RA), regression analysis was performed, linking personal and occupational risk factors to RA values derived from the biomechanical models. Results Fast Fourier transform of the input seat-pad acceleration showed peaks dominant in the lower frequency range of 2–8 Hz. Operators reporting LBP had significantly higher mean RA value compared to those without LBP (p

Keywords: Biodynamic model; Whole-body vibration; Mining vehicle operators; Occupational health; MSD; Low-back pain; Healthy workforce; ISO 2631-5:2018 (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s13198-025-02752-1

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