Occupational Exposure to Whole-Body Vibration Among Women Dumper Operators: Assessing Health Risks in Indian Opencast Mines
摘要
Background: Whole-body vibration (WBV) is a critical occupational hazard faced by operators in various heavy machinery industries. Along with heightened risk of musculoskeletal disorders published literature also indicates negative effects on digestive system, the genital/urinary system, and the female reproductive organs. Despite extensive research on WBV exposure, there's a significant gap in understanding its effects, particularly among females. This study addresses that gap by evaluating the vibration exposure and associated health risks among female dumper operators in Indian opencast mines. Methodology: A cross-sectional field study was conducted among 41 female dumper operators. WBV exposure was recorded using tri-axial seat pad accelerometers during routine operations. Data were analysed following ISO 2631–1:1997 standards, and health risk was evaluated based on the Health Guidance Caution Zone (HGCZ) framework. Results: The vibration A(8) values obtained ranged between 0.44 and 0.56 m/s2. The Fast Fourier transform (FFT) of the input seat pad acceleration revealed prominent peaks within the 3–8 Hz frequency range. These peaks correspond to the natural frequency of the knees, abdomen, chest, and spine when in a seated posture. The HGCZ showed that operators faced a moderate health risk in terms of their health implications. Conclusion: With the induction of women in these roles, it is also important to ensure their safety from occupational hazards, considering that the physiological characteristics of females differ widely from those of their male counterparts. Our work here offers insightful data that can guide the creation of gender-specific occupational health standards and interventions, promoting a safer and more inclusive working environment in the mining industry.