High cable forces deteriorate pinch force control in voluntary-closing body-powered prostheses
Journal article
Authors | Hichert, M., Abbink, D.A., Kyberd, P. and Plettenburg, D.A. |
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Abstract | It is generally asserted that reliable and intuitive control of upper-limb prostheses requires adequate feedback of prosthetic finger positions and pinch forces applied to objects. Body-powered prostheses (BPPs) provide the user with direct proprioceptive feedback. Currently available BPPs often require high cable operation forces, which complicates control of the forces at the terminal device. The aim of this study is to quantify the influence of high cable forces on object manipulation with voluntary-closing prostheses. Able-bodied male subjects were fitted with a bypass-prosthesis with low and high cable force settings for the prehensor. Subjects were requested to grasp andtransfer a collapsible object as fast as they could without dropping or breaking it. The object had a low and a high breaking force setting. Subjects conducted significantly more successful In conclusion: high cable forces lead to reduced pinch force control during object manipulation. This implies that low cable operation forces should be a key design requirement for voluntary-closing BPPs |
Keywords | body-powered prostheses, Bowden cable operation forces, Extended Physiological Proprioception (EPP), hand prosthesis, mechanical egg, object manipulation, pinch force control, proprioceptive feedback, prosthetic design, prosthetic evaluation, sensory feedback, upper-limb prostheses, voluntary-closing. |
Year | 2017 |
Journal | PLos ONE |
Journal citation | 21 (1), p. e0169996 |
Publisher | Public Library of Science San Francisco, CA USA |
Digital Object Identifier (DOI) | https://doi.org/10.1371/journal.pone.0169996 |
Accepted author manuscript | File Access Level Controlled |
Output status | Published |
Publication dates | |
Online | 18 Jan 2017 |
Publication process dates | |
Deposited | 01 Jun 2023 |
https://repository.derby.ac.uk/item/9yv53/high-cable-forces-deteriorate-pinch-force-control-in-voluntary-closing-body-powered-prostheses
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