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. 2022 Apr 28;9:20556683221093271. doi: 10.1177/20556683221093271

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© The Author(s) 2022

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Instrumented investigational prosthesis. Left: Inside view of socket showing sensors at two posterior mid-limb and one anterior distal location (white arrows). The tether (yellow arrow) connects to a short pin (not shown) that provides suspension. The red and green buttons at the top right are for operation of the powered tether system. Right: Motors supported to frames mounted to the socket move the panels radially inward and outward based on socket fit. The mechanism to control tether length (gray cylinder) is mounted beneath the socket.