Revised NIOSH lifting equation: A critical evaluation

Source avec lien : International journal of occupational safety and ergonomics: JOSE, (En ligne). 10.1080/10803548.2022.2049123

L’article explore la possibilité de rendre l’équation de levage révisée du NIOSH plus inclusives et largement applicables par de petites modifications. Il souligne la nécessité d’ajouter et/ou de reconsidérer les multiplicateurs pour rendre l’équation plus polyvalente.

The NIOSH Revised Lifting Equation (RNLE) aims to manage lifting-related lower back pain (LBP), by determining safe load limits. Many researchers have studied the multiplier’s development criteria, the universal applicability of the equation, and its ability to identify an increased risk of low back pain in lifting tasks. Although a number of strengths of the equation have been highlighted, many limitations have also been identified. The need for new multipliers, such as worker and environmental characteristics, was highlighted in order to make the equation more adaptable. The RNLE was designed to protect 75% of female workers and is therefore inherently conservative. Additionally, as all multipliers have values ⁣⁣less than or equal to 1, the Recommended Weight Limits (RWLs) can be further reduced. Thus, new multipliers may be defined, by combining two or more existing multipliers, to make the recommended weight limits more realistic.Practitioners Summary: The article explores the possibility of making the RNLE more inclusive and widely applicable through small modifications. It highlights the need to add and/or reconsider multipliers to make the equation more versatile and yield more realistic RWLs.

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