Role of whole-body vibration exposure and posture of dumper operators in musculoskeletal disorders: a case study in metalliferous mines.
Int J Occup Saf Ergon
; 28(3): 1711-1721, 2022 Sep.
Article
em En
| MEDLINE
| ID: mdl-34042562
ABSTRACT
Objectives. The combined role of whole-body vibration (WBV) exposure and awkward posture on musculoskeletal disorders (MSDs) experienced by dumper operators in two metalliferous mines in India was evaluated through a cross-sectional study. Methods. Frequency-weighted root mean square (rms) acceleration was used for WBV exposure assessment. Anthropometry and rapid upper limb assessment (RULA) were used for static and dynamic posture assessment, respectively. Prevalence of MSDs was assessed using the Nordic musculoskeletal questionnaire (NMQ). Logistic regression was used to assess the factors contributing to MSD problems. Results. The rms values revealed that the operators exceeded the lower limit of Standard No. ISO 2631-11997. The dynamic posture study revealed that the majority of dumper operators were taking awkward postures and 58-74% of them were subjected to high and medium levels of MSD risk. The adjusted odds ratio (7.96, 95% confidence interval [1.24, 41.35]) for the most awkward postures revealed WBV exposure as the significant risk factor for MSD problems among the operators. Conclusion. WBV exposure and posture of operators should be regularly monitored and corrective actions implemented to reduce their MSD problems. Ergonomic seat design based on the anthropometry of the operators should be assessed at the time of procuring new equipment.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Exposição Ocupacional
/
Doenças Musculoesqueléticas
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Doenças Profissionais
Tipo de estudo:
Etiology_studies
/
Observational_studies
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Prevalence_studies
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Risk_factors_studies
Limite:
Humans
Idioma:
En
Revista:
Int J Occup Saf Ergon
Assunto da revista:
MEDICINA OCUPACIONAL
/
PSICOLOGIA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
Índia