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Manual rolling load and low back pain among workers in Japan: A cross-sectional study.
Journal of Occupational Health 2024 April 12
OBJECTIVES: Manual rolling of heavy objects remains in the workplace. The Health and Safety Executive (HSE) in the UK recommends load weights of <400 kg in the rolling task. However, the association of rolling weights <400 kg with work-related low back pain (LBP) has not been sufficiently investigated. This study examined the effect of rolling loads weighing <400 kg on LBP among Japanese workers.
METHODS: A web-based survey gathered information from 15,158 workers in 2022. Among them, 15,035 did not handle loads, while 123 handled rolling weights <400 kg. Load weight was categorized into four groups: no-handling (0 kg) and rolling weights of ≤20, 20-40, and >40 kg. Multiple logistic regression analysis examined the association between the subdivided rolling weight and LBP.
RESULTS: No significant differences in odds ratio (OR) of LBP were found for workers handling ≤40 kg rolling weights compared with that for no-handling workers. However, workers handling >40 kg rolling weights resulted in a significantly greater OR of LBP than those not handling loads.
CONCLUSIONS: Rolling weights between 40 and 400 kg could place a high stress on the lower back. Implementation of the HSE recommendations regarding rolling load in Japan should be carefully considered.
METHODS: A web-based survey gathered information from 15,158 workers in 2022. Among them, 15,035 did not handle loads, while 123 handled rolling weights <400 kg. Load weight was categorized into four groups: no-handling (0 kg) and rolling weights of ≤20, 20-40, and >40 kg. Multiple logistic regression analysis examined the association between the subdivided rolling weight and LBP.
RESULTS: No significant differences in odds ratio (OR) of LBP were found for workers handling ≤40 kg rolling weights compared with that for no-handling workers. However, workers handling >40 kg rolling weights resulted in a significantly greater OR of LBP than those not handling loads.
CONCLUSIONS: Rolling weights between 40 and 400 kg could place a high stress on the lower back. Implementation of the HSE recommendations regarding rolling load in Japan should be carefully considered.
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