1489931
doi
10.5281/zenodo.1489931
oai:zenodo.org:1489931
user-rehabmove2018
Foster, R.J.
Liverpool John Moores University, LIVERPOOL, United Kingdom
Skervin, T.
Liverpool John Moores University, LIVERPOOL, United Kingdom
Barnett, C.T.
Nottingham Trent University, NOTTINGHAM, United Kingdom
RehabMove 2018: ARE INDIVIDUALS WITH UNILATERAL TRANSTIBIAL AMPUTATION ABLE TO ADAPT TO AN ACUTE PROSTHETIC INTERVENTION?
De Asha, A.R.
C-Motion Inc., GERMANTOWN, United States of America
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
<p><strong>PURPOSE</strong>: Individuals with a unilateral trans-tibial amputation (UTA) are known to minimise internal<br>
extension moments at the residual knee during running, in order to reduce discomfort in the residuum and<br>
reduce in-socket torques. When a running specific prosthesis (RSP) is altered or replaced, e.g. varying its<br>
stiffness, it is unknown whether individuals with UTA can quickly adapt to the perturbation, modulating<br>
moments at the residual knee in order to protect the residuum, or if such adaptations require an extended<br>
accommodation period. The purpose of this study was to investigate acute adaptations to a change in<br>
RSP stiffness in individuals with UTA.<br>
<strong>METHODS</strong>: Optical motion capture and force data were recorded while eight male participants ran at their<br>
self-determined, normal running speed using their prescribed RSP (NORM; all; Blade XT, Blatchford,<br>
Basingstoke, UK) and also immediately after it was replaced with both stiffer (STIFF) and more compliant<br>
(COMP) RSPs (+/- one spring category, respectively). A 17 segment model (head, torso, pelvis, thighs,<br>
shanks & intact foot, with the RSP modelled as nine linked rigid segments) was constructed within<br>
Visual3D (C-Motion, MD, USA). Running speed, peak residual knee flexion and peak residual knee<br>
extension moment were compared between conditions.<br>
<strong>RESULTS</strong>: There was no significant difference in running speed (NORM 3.49 (0.35) m/s; STIFF 3.53<br>
(0.33) m/s; COMP 3.56 (036) m/s, p = 0.41), residual knee flexion (NORM 33 (2)°; STIFF 33 (9)°; COMP<br>
31 (8)°, p = 0.86) or residual knee extension moment (NORM 1.50 (0.84) N.m/kg; STIFF 1.55 (0.87)<br>
N.m/kg; COMP 1.62 (0.90) N.m/kg, p = 0.45).<br>
<strong>CONCLUSIONS</strong>: Individuals with UTA, who run using an RSP, are able to adapt immediately to an<br>
alteration in the RSP stiffness in order to minimise moments at the residual knee, and thus potentially<br>
minimise torques at the residuum/socket interface. This is achieved without a reduction in running speed<br>
or change in residual knee flexion.</p>
Zenodo
2018-11-16
info:eu-repo/semantics/conferencePaper
1489930
user-rehabmove2018
1579538732.406944
392744
md5:a5e73ce30687a7fe02b04503f63797f4
https://zenodo.org/records/1489931/files/RM2018_A11_De Asha.pdf
public
10.5281/zenodo.1489930
isVersionOf
doi