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Articles

Evolution of the biomechanical dimension of the professional gestures of grinders when using a collaborative robot

ORCID Icon, , , , &
Pages 668-675 | Published online: 24 May 2022
 

ABSTRACT

Using a cobot could relieve workers of strenuous and repetitive tasks while preserving their expertise. To understand the consequences of using a cobot on the occurrence of musculoskeletal disorders (MSDs), within a theoretical framework based on activity-centred ergonomics, an example cobot used in grinding activities in a real work situation is studied. This article analyses the evolution of the biomechanical dimension of the professional gestures of grinders when using the cobot. Effort linked to tool carrying and the vibrations perceived were reduced. Repetitiveness decreased but workers did not accomplish the entirety of their task. The work postures did improve for different joints but not for all, which shows the advantage of varying the contexts of using a cobot and taking into account workers’ strategy diversity. To investigate other explanatory elements of the effects on MSDs, these results must be linked to the evolution of the other dimensions of professional gestures.

Acknowledgements

The authors would like to express their gratitude to the company and the professionals who opened their workplaces for this study. They also would like to thank O. Remy, B. Adam and G. Reno for their technical support.

Disclosure statement

No potential conflict of interest was reported by the authors.

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