Abstract
This research concerns the workplace design methodology, involving digital human models, that prevents work-related musculoskeletal disorders (WMSDs). We propose an approach that, in conjunction with one of the classic WMSD risk assessment methods, allows one to simplify simulations in a three-dimensional digital environment. Two real-life workstations from a manufacturing industry were modelled in a 3D Studio Max environment by means of an Anthropos ErgoMax system. A number of simulations show that, for the examined cases, classic boundary mannequins’ approaches can be replaced by using 50th percentile of a population individual, with a minimal impact on the WMSD risk. Although, the finding might not be suitable in all situations, it should be considered, especially where compromise solutions are being sought due to other criteria.
Highlights
Work-related musculoskeletal disorders (WMSDs) refer to diminishing the functionality or damaging of such human body structures as muscles, joints, tendons, ligaments, nerves, cartilage, bones as well as the blood circulation system
On Workstations determining the most important parameters related to the location of individual work Characteristics environment movable items that will result in the lowest risk of work-related musculoskeletal disorders (WMSDs) for the entire population of
The dummy was first positioned in such a configuration adopt the posture that ensures a minimal risk of WMSDs according to Rapid Entire Body Assessment (REBA)
Summary
Work-related musculoskeletal disorders (WMSDs) refer to diminishing the functionality or damaging of such human body structures as muscles, joints, tendons, ligaments, nerves, cartilage, bones as well as the blood circulation system. The OWAS method is intended mainly for the risk assessment of WMSDs for physical work It analyzes the body posture defined by relative positions of its segments and force loads and assigns them to various risk categories. The general idea of the WMSD risk appraisal consists of assessing the deviations of individual body segment angles from their natural, neutral values This evaluation approach is justified, among others, by precise physiological studies and research on perceived discomfort and fatigue. Corrective actions may include redesigning tools, rearranging spatial relations, or changing work processes organization Case studies for such analyses and interventions are described, for example, in [15], where authors examined postural behavior while performing repetitive tasks by using photographs and activity sampling techniques. The finding might not be suitable in all situations, it should be considered, especially where compromise solutions are being sought due to other criteria
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