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Open AccessArticle

An Agile Approach to Improve the Usability of a Physical Telerehabilitation Platform

1
Department of Informatics and Computer Science, Escuela Politécnica Nacional, Quito 170525, Ecuador
2
Intelligent & Interactive Systems Lab (SI2 Lab), Universidad de Las Américas, Quito 170125, Ecuador
3
Faculty of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Monte de Caparica, Portugal
4
School of Informatics, University of Skövde, 54128 Skövde, Sweden
5
Institute of Research, Development and Innovation, Mechatronics and Interactive Systems Center MIST, Universidad Tecnológica Indoamérica, 170301 Quito, Ecuador
6
UNIDEMI, Universidade NOVA de Lisboa, 2829-516 Monte de Caparica, Portugal
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Appl. Sci. 2019, 9(3), 480; https://doi.org/10.3390/app9030480
Received: 29 November 2018 / Revised: 28 December 2018 / Accepted: 2 January 2019 / Published: 30 January 2019
(This article belongs to the Special Issue Intelligent Health Services Based on Biomedical Smart Sensors)
The goal of a telerehabilitation platform is to safely and securely facilitate the rehabilitation of patients through the use of telecommunication technologies complemented with the use of biomedical smart sensors. The purpose of this study was to perform a usability evaluation of a telerehabilitation platform. To improve the level of usability, the researchers developed and proposed an iterative process. The platform uses a digital representation of the patient which duplicates the therapeutic exercise being executed by the patient; this is detected by a Kinect camera and sensors in real time. This study used inspection methods to perform a usability evaluation of an exploratory prototype of a telerehabilitation platform. In addition, a cognitive workload assessment was performed to complement the usability evaluation. Users were involved through all the stages of the iterative refinement process. Usability issues were progressively reduced from the first iteration to the fourth iteration according to improvements which were developed and applied by the experts. Usability issues originally cataloged as catastrophic were reduced to zero, major usability problems were reduced to ten (2.75%) and minor usability problems were decreased to 141 (38.74%). This study also intends to serve as a guide to improve the usability of e-Health systems in alignment with the software development cycle. View Full-Text
Keywords: telemedicine; telerehabilitation; user interface; usability evaluation; heuristic evaluation; software product quality; exploratory prototyping telemedicine; telerehabilitation; user interface; usability evaluation; heuristic evaluation; software product quality; exploratory prototyping
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Pilco, H.; Sanchez-Gordon, S.; Calle-Jimenez, T.; Pérez-Medina, J.L.; Rybarczyk, Y.; Jadán-Guerrero, J.; Maldonado, C.G.; Nunes, I.L. An Agile Approach to Improve the Usability of a Physical Telerehabilitation Platform. Appl. Sci. 2019, 9, 480.

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