Development of a limits of stability protocol for use in transtibial prosthesis users: learning effects and reliability of outcome variables

Rusaw, F.D., Rudholmer, E. and Barnett, C.T. ORCID: 0000-0001-6898-9095, 2017. Development of a limits of stability protocol for use in transtibial prosthesis users: learning effects and reliability of outcome variables. Gait & Posture. ISSN 0966-6362

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Abstract

The aims of this study were to empirically quantify reliability and learning effects of a Limits of Stability protocol for transtibial prosthesis users. Outcome variables from center of pressure and center of mass were tested on: 1) multiple test repetitions within a single test occasion; and 2) between multiple test occasions. Trantibial prosthesis users (n=7) and matched controls (n=7) executed five trials of the Limits of Stability protocol on two occasions per day, on two consecutive days. Inter-trial learning effects and reliability of outcomes extracted via center of mass and center of pressure were evaluated utilizing standard biomechanics laboratory equipment. Reliability was good to excellent except the reaction time variable which was poor (Pooled 95%CI of ICC=0.248-0.484). An inter-trial learning effect was present in directional control for prosthesis users when the first trial was included in analysis (center of mass: 95%CI of r=0.065-0.239; center of pressure: 95%CI of r=0.076-0.249). The use of standard biomechanics lab equipment can produce reliable results for the Limits of Stability protocol. Researchers should be aware of low reliability of reaction time variable in the protocol assessed and should execute at least one practice trial prior to that which is used in subsequent analysis.

Item Type: Journal article
Publication Title: Gait & Posture
Creators: Rusaw, F.D., Rudholmer, E. and Barnett, C.T.
Publisher: Elsevier
Date: 21 August 2017
ISSN: 0966-6362
Identifiers:
NumberType
10.1016/j.gaitpost.2017.08.021DOI
S0966636217308664Publisher Item Identifier
Divisions: Schools > School of Science and Technology
Depositing User: Jonathan Gallacher
Date Added: 30 Aug 2017 07:41
Last Modified: 31 Aug 2017 09:58
URI: http://irep.ntu.ac.uk/id/eprint/31477

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