Proposal of parameters to implement a workstation rotation system to protect against MSDs

The aim of this study was to propose parameters to be taken into account for implementing a workstation rotation system, which reduces the risk of musculoskeletal disorders (MSDs). The case study has shown that the benefit provided by workstation rotation has a positive impact on psychosocial factors, which partly explains why most operators are either not at all or only slightly stressed. Workstation rotation is found to be relatively ineffective in relation to MSD prevention, notably on account of the lack of variability and the intensity of the biomechanical demands. The assessment of a workstation rotation system intended to prevent MSDs must encompass all the dimensions of the work. To achieve this, it is necessary to describe the rotation system in detail, ascertain the characteristics of the population concerned, assess its experience of the work, and measure the degree of biomechanical demand of the workstations. A logic diagram is proposed which can assist in arriving at a better identification of the conditions of success of a workstation rotation system. It is based on four complementary dimensions: ergonomic study of the context, integration of scientific knowledge, mastery of the implementation of the rotation system and evaluation and follow-up of the results.