Aiming at the 'proper' body: How exoskeletons foster 'risky' bodies and conflicting knowledge regimes.

Exoskeletal devices are new technologies that have been developed in the medical field to provide assistance and rehabilitation for persons with motor impairments. Among these impairments, spinal cord injury and stroke are the most common. Drawing on materials collected during multi-sited ethnography conducted in France, Germany and Switzerland from 2014 to 2019, I suggest that exoskeletons contribute to a more general process that I identify as 'aiming at the "proper" body'. As they materially craft motor impaired bodies but also are responsible for datafication and dataveillance, exoskeletons allow to categorise new aspects of 'risky' bodies. Simultaneously, they foster conflicts between experts' perspectives about rehabilitation practice and the users' phenomenological experiences that exoskeletons aim to transform. After describing how exoskeletons expand the realm of contemporary medical technologies in their purpose of 'aiming at "proper" bodies' while being 'miraculous', I identify two conceptions of 'risky' bodies: a first one related to materiality, a second one to processes of digitalisation to which exoskeletons actively participate. Finally, I investigate some conflicting levels between the regimes of expert knowledge and the phenomenological experiences of the users and reassess the latter's role in rehabilitation practice with exoskeletons.