Myoelectric prosthesis users and non-disabled individuals wearing a simulated prosthesis exhibit similar compensatory movement strategies

Abstract Background Research studies on upper limb prosthesis function often rely the use of simulated myoelectric prostheses (attached to and operated by individuals with intact limbs), primarily increase participant sample size. However, it is not known if these devices elicit same movement strategies as (operated amputation). The objective this study was address question whether non-disabled using employ compensatory movements (measured hand body kinematics) who actual prostheses. Methods two groups were investigated: (1) twelve wearing a prosthesis, (2) three transradial amputation their custom-fitted devices. Motion capture used for data collection while participants performed standardized functional task. Performance metrics, movements, angular kinematics calculated. For each group, measures compared those from normative baseline dataset. Each deviation behaviour, either indicated that during task performance. Results show or exhibited similar deviations behaviour in phase durations, velocities, trajectories, number units, grip aperture plateaus, trunk shoulder ranges motion. Conclusions This suggests prosthetic device research offers reasonable approximation employed low- moderately-skilled user.