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Article History

Received: 1 August 2018

Accepted: 2 January 2019

First Online: 16 January 2019

Ethics approval and consent to participate

: Approval was obtained from the Northwestern University Institutional Review Board and informed consent was obtained from each participant prior to completing the study. All methods and experiments were performed in accordance with relevant guidelines and regulations.

: All participants in this study gave explicit verbal and written content to be included in any identifiable or non-identifiable figures, videos, or other media for any form of publication purpose (including online open-access articles).

: LH has a financial interest in Coapt, LLC, a company that sells myoelectric control systems. No Coapt products or materials were used in this study. RW has no competing interest to declare.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.