Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/33504
Title: Towards the Monitoring of Functional Status in a Free-Living Environment for People with Hip or Knee Osteoarthritis: Design and Evaluation of the JOLO Blended Care App
Authors: EMMERZAAL, Jill 
De Brabandere, Arne
VANROMPAY, Yves 
VRANKEN, Julie 
STORMS, Valerie 
DE BAETS, Liesbet 
CORTEN, Kristoff 
Davis, Jesse
Jonkers, Ilse
Vanwanseele, Benedicte
TIMMERMANS, Annick 
Issue Date: 2020
Publisher: MDPI
Source: SENSORS, 20 (23) (Art N° 6967)
Abstract: (1) Background: Joint loading is an important parameter in patients with osteoarthritis (OA). However, calculating joint loading relies on the performance of an extensive biomechanical analysis, which is not possible to do in a free-living situation. We propose the concept and design of a novel blended-care app called JOLO (Joint Load) that combines free-living information on activity with lab-based measures of joint loading in order to estimate a subject's functional status. (2) Method: We used an iterative design process to evaluate the usability of the JOLO app through questionnaires. The user interfaces that resulted from the iterations are described and provide a concept for feedback on functional status. (3) Results: In total, 44 people (20 people with OA and 24 health-care providers) participated in the testing of the JOLO app. OA patients rated the latest version of the JOLO app as moderately useful. Therapists were predominantly positive; however, their intention to use JOLO was low due to technological issues. (4) Conclusion: We can conclude that JOLO is promising, but further technological improvements concerning activity recognition, the development of personalized joint loading predictions and a more comfortable means to carry the device are needed to facilitate its integration as a blended-care program.
Notes: Emmerzaal, J (corresponding author), Katholieke Univ Leuven, Dept Movement Sci, Human Movement Biomech Res Grp, B-3000 Leuven, Belgium.; Emmerzaal, J (corresponding author), Hasselt Univ, REVAL Rehabil Res, B-3590 Diepenbeek, Belgium.
jill.emmerzaal@kuleuven.be; arne.debrabandere@kuleuven.be;
yves.vanrompay@uhasselt.be; julie.vranken@uhasselt.be;
valerie.storms@uhasselt.be; liesbet.debaets@uhasselt.be;
Kristoff.Corten@zol.be; jesse.davis@kuleuven.be;
ilse.jonkers@kuleuven.be; benedicte.vanwanseele@kuleuven.be;
Annick.Timmermans@uhasselt.be
Other: Emmerzaal, J (corresponding author), Katholieke Univ Leuven, Dept Movement Sci, Human Movement Biomech Res Grp, B-3000 Leuven, Belgium. Hasselt Univ, REVAL Rehabil Res, B-3590 Diepenbeek, Belgium. jill.emmerzaal@kuleuven.be; arne.debrabandere@kuleuven.be; yves.vanrompay@uhasselt.be; julie.vranken@uhasselt.be; valerie.storms@uhasselt.be; liesbet.debaets@uhasselt.be; Kristoff.Corten@zol.be; jesse.davis@kuleuven.be; ilse.jonkers@kuleuven.be; benedicte.vanwanseele@kuleuven.be; Annick.Timmermans@uhasselt.be
Keywords: app development;usability;osteoarthritis;blended care;interaction design
Document URI: http://hdl.handle.net/1942/33504
e-ISSN: 1424-8220
DOI: 10.3390/s20236967
ISI #: WOS:000597928500001
Rights: copyright 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Category: A1
Type: Journal Contribution
Validations: ecoom 2022
Appears in Collections:Research publications

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