Identifying individual characteristics influencing post-adaptation of motor behavior in upper-limb exoskeleton users
Résumé
Over the past decade, industrial ergonomics have made significant advances, leading to the development of various occupational exoskeletons. While beneficial, exoskeletons could disrupt motor control due to their distributed interaction with the human body. This study explores individual factors influencing different adaptation patterns following exoskeleton use in asymptomatic individuals. Fifty-five participants used a 4 Degree of Freedom (DoF) arm exoskeleton to perform reaching tasks under low-magnitude force fields. Pre-and post-exposure movements were recorded via motion capture, and personal characteristics were documented. Spectral clustering identified variations in inter-joint coordination after exposition to the exoskeleton, and a random forest classifier linked these patterns to individual anthropometric, demographic and kinematic traits. The model highlighted factors such as laterality, forearm length, and some spontaneous kinematics metrics as key predictors of post-adaptation behavior. These findings underscore the need to consider individual profiles to minimize disruptive motor adaptations and improve exoskeleton safe widespread in industrial applications.
Domaines
Robotique [cs.RO]
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Humanoids_2024____Exoskeletons_personalization_is_a_key_point_to_reduce_after_effect_on_inter_joint_coordination.pdf (2.05 Mo)
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