Upper limb activity in myoelectric prosthesis users is biased towards the intact limb and appears unrelated to goal-directed task performance
| Autor: | Alix Chadwell, J. Kulkarni, John Head, Adam Galpin, Laurence Kenney, Rose Baker, Sibylle B. Thies, Malcolm H. Granat |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male 030506 rehabilitation medicine.medical_specialty Adolescent medicine.medical_treatment lcsh:Medicine Artificial Limbs Myoelectric prosthesis Electromyography Kinematics Prosthesis Article Task (project management) Upper Extremity Young Adult 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation Task Performance and Analysis Humans Medicine lcsh:Science Aged Balance (ability) Multidisciplinary medicine.diagnostic_test business.industry lcsh:R Middle Aged Gaze medicine.anatomical_structure Upper limb lcsh:Q Female 0305 other medical science business Goals Algorithms 030217 neurology & neurosurgery |
| Zdroj: | Scientific Reports Scientific Reports, Vol 8, Iss 1, Pp 1-12 (2018) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-018-29503-6 |
| Popis: | Studies of the effectiveness of prosthetic hands involve assessing user performance on functional tasks, typically collected in the lab, sometimes combined with self-report of real-world use. In this paper we compare real-world upper limb activity between a group of 20 myoelectric prosthesis users and 20 anatomically intact adults. Activity was measured from wrist-worn accelerometers over a 7-day period. The temporal patterns in upper limb activity are presented and the balance of activity between the two limbs quantified. We also evaluated the prosthesis users’ performance on a goal-directed task, characterised using measures including task success rate, completion time, gaze behaviour patterns, and kinematics (e.g. variability and patterns in hand aperture). Prosthesis users were heavily reliant on their intact limb during everyday life, in contrast to anatomically intact adults who demonstrated similar reliance on both upper limbs. There was no significant correlation between the amount of time a prosthesis was worn and reliance on the intact limb, and there was no significant correlation between either of these measures and any of the assessed kinematic and gaze-related measures of performance. We found participants who had been prescribed a prosthesis for longer to demonstrate more symmetry in their overall upper limb activity, although this was not reflected in the symmetry of unilateral limb use. With the exception of previously published case studies, this is the first report of real world upper limb activity in myoelectric prosthesis users and confirms the widely held belief that users are heavily reliant on their intact limb. |
| Databáze: | OpenAIRE |
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