Jadán Guerrero, Janio
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Jadán Guerrero, Janio
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Quito
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janiojadan@uti.edu.ec
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56267555100

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Analysis and improvement of the web accessibility of a tele-rehabilitation platform for hip arthroplasty patients

2019 , Calle-Jimenez T. , Sanchez-Gordon S. , Rybarczyk Y. , Jadán Guerrero, Janio , Villarreal S. , Esparza W. , Acosta-Vargas P. , Guevara C. , Nunes I.L.

This paper explains some of the challenges that exist to make accessible the web interfaces of a Tele-rehabilitation platform for hip arthroplasty patients and propose an iterative method to improve the level of accessibility using automatic evaluation tools. Web accessibility is not concerned with the specific conditions of people who use the Web, but with the impact that their conditions have on their ability to use it. If the web interfaces of the Tele-rehabilitation platform for hip arthroplasty patients are not accessible enough, the patients will not be able to understand, perceive or operate adequately the platform to benefit completely of the physical therapy. The Web Content Accessibility Guidelines (WCAG 2.0) provides a set of rules and recommendations to help solve the problems of Web accessibility. Additionally, there are evaluation tools that allow identifying main web accessibility problems. These tools are best exploited when used by accessibility experts. The purpose of this research is threefold. First, to present the results of a web accessibility evaluation of the web interfaces of the Tele-rehabilitation Platform for Hip Arthroplasty Patients using three the evaluation tools: WAVE, AChecker and TAW. Second, to analyze the results presented by the tools according to the WCAG 2.0 guidelines to define a list of accessibility improvements. Third, to implement the improvements through the re-factorization of the existing code and re-testing the improved web interfaces to verify that they meet acceptable accessibility levels. © Springer International Publishing AG, part of Springer Nature 2019.

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Understanding Bullying and Cyberbullying Through Video Clips on Social Media Platforms

2023 , Jadán Guerrero, Janio , Arias Flores, Hugo Patricio , Acosta-Vargas P.

Bullying and cyberbullying are widely recognized as complex problems that have serious negative repercussions for the health and society of children and adolescents. Bullying can take place in-person at school, home or work, irrespective of age, gender, or role. Cyberbullying can take place on messaging platforms, social media platforms, gaming platforms, or marketing platforms. For example, posting embarrassing photos or videos of someone on social media sending hurtful or spreading lies, as well as abusive or threatening messages, images, or videos through messaging platforms. Offenders impersonate someone and send malicious messages to others in their name or through fake accounts. In this sense, the use of short videos based on the principles of microlearning is scented as a proposal to understand and prevent bullying and cyberbullying. The objective of this article is to analyze how video clips are used on social platforms to raise awareness of bullying and cyberbullying and to propose the creation of new video clips as resources for an awareness-raising MOOC. The methodology followed a phase of analysis of videos on the TikTok and YouTube networks, in order to have a baseline prior to the creation of new video clips by twelve students of the Digital Design and Multimedia career. The content of the videos was evaluated by a psychologist to finally select the appropriate ones for a marketing campaign of an awareness MOOC. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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A Case Study: Developing reusable Learning Objects

2021 , Santorum M. , Carrion-Toro M. , Guacapina M.-B. , Acosta-Vargas P. , Jadán Guerrero, Janio

Information and Communication Technologies (ICT) offer the possibility of creating a massive resource and knowledge base in the educational field. Learning Objects (LOs) are digital instructional elements that help users' complete tasks. This diversity has made it difficult to easily integrate them into educational software solutions, which is why this document presents a study of the characteristics, standards, and tools for creating and reusing OAs. For this purpose, a systematic literature review of 1023 scientific articles were carried out. With the results of 42 selected articles, a website was developed based on the SCRUM methodology, which integrates OAs oriented to the use of ICT tools to contribute to virtual education generated by the global crisis of the pandemic by the COVID-19. This study can serve as an input in future studies related to SCRUM-based learning objects. © 2021 IEEE.

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Interaction with a tele-rehabilitation platform through a natural user interface: A case study of hip arthroplasty patients

2019 , Rybarczyk Y. , Villarreal S. , González M. , Acosta-Vargas P. , Esparza D. , Sanchez-Gordon S. , Calle-Jimenez T. , Jadán Guerrero, Janio , Nunes I.L.

Using a tele-rehabilitation platform for motor recovery obliges the user to interact at a remote distance from the computer. In such a situation, a natural user interface can be used both to record the therapeutic movements performed by the patient, and to navigate in the web application. Nevertheless, it is necessary to assess the user experience to validate the system usability. The present paper describes an experiment to test the usability of a platform designed to enhance the recovery of patients after hip replacement surgery. The user experience is evaluated through several metrics (completion time and usability questionnaire) and the results are related to a sociodemographic questionnaire. A clustering approach is implemented to identify a relationship between the user’s profile and the interaction performance with the platform. © Springer International Publishing AG, part of Springer Nature 2019.

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A real-time algorithm for movement assessment using fuzzy logic of hip arthroplasty patients

2019 , Guevara C. , Jadán Guerrero, Janio , Rybarczyk Y. , Acosta-Vargas P. , Esparza W. , González M. , Villarreal S. , Sanchez-Gordon S. , Calle-Jimenez T. , Nunes I.L.

The present work proposes a model of detection of movements of patients in rehabilitation of hip surgery in real time. The model applies the Fuzzy Logic technique to identify correct and incorrect movements in the execution of rehabilitation exercises using the motion capture device called XBOXONE Microsoft’s Kinect. An algorithm generates a multivalent logical model that allows the simultaneous modeling of deductive and decision-making processes. This model identifies the correct and incorrect movements of the patient during the execution of rehabilitation exercises. This model uses all the information collected from 24 points of the body with their respective axes of coordinates (X, Y, Z). Using data mining analysis, the algorithm selects the most remarkable attributes, eliminating non-relevant information. The main contributions of this work are: creation of a patient profile based on the movement of the human being in a generic way for the detection and prediction of execution of physical exercises in rehabilitation. On the other hand, an avatar was developed in 3D, which copies and evidences graphically the exercises performed by patients in real time. © Springer International Publishing AG, part of Springer Nature 2019.

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Interactive Storytelling Books for Fostering Inclusion of Children with Special Needs

2020 , Jadán Guerrero, Janio , Sanchez-Gordon S. , Acosta-Vargas P. , Alvites-Huamaní C.G. , Nunes I.L.

Children with Special Needs may have difficulty understanding the content of a book or associating words and sentences with their meaning. Teachers use the storytelling as a powerful literacy tool which engage children in making connections between academic content and pedagogy. This strategy is also useful to integrate the diversity of the classroom. Increasing or varying the types of materials available to children is another way to make the classroom more inclusive. This paper proposes a new approach for fostering interaction and inclusion development during shared reading. We sought to increase the interactivity of traditional tale books by incorporating elements of technology and storytelling. To develop prototypes we recruited 30 teachers divided into six groups. Each group worked with two challenges: (1) to incorporate technology into a traditional storybook and (2) create an interactive storytelling book for left-handed children. During five work sessions each group developed two proposals: The first proposal was designed with QR codes and the second with NFC tags and augmented reality patterns to facilitate left-handed activities among teachers and children. The proposals were evaluated in the classroom and with experts’ reviews, finding interesting results. © 2020, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Analysis and improvement of the usability of a tele-rehabilitation platform for hip surgery patients

2019 , Pilco H. , Sanchez-Gordon S. , Calle-Jimenez T. , Rybarczyk Y. , Jadán Guerrero, Janio , Villarreal S. , Esparza W. , Acosta-Vargas P. , Guevara C. , Nunes I.L.

The Tele-Rehabilitation platform for hip surgery allows patients to carry out part of their rehabilitation at home, without the need to travel long distances to a rehabilitation centre. A lack of usability that may prevent effectiveness, efficiency, and the satisfaction of patients, may lead to problems of confusion, error and delay, or even abandonment of the physical therapy. To perform the usability analysis, a set of heuristics were selected relating to aspects such as navigation, visual clarity, coherence, prevention of errors, user guidance, online help and user control. A cognitive walkthrough technique was also applied. With the results of the analysis, the design and implementation of improvements were performed. The web interfaces of the Tele-Rehabilitation platform were evaluated once again and compared with the baseline to ensure there was an improvement in usability. © Springer International Publishing AG, part of Springer Nature 2019.

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Digital Resources and Children’s Learning: Parental Perception During the Pandemic

2021 , Alvites-Huamaní C. , Arias Flores, Hugo Patricio , Jadán Guerrero, Janio , Acosta-Vargas P.

The coronavirus disease (COVID-19) pandemic has disrupted family life around the world. Families had to adapt to teleworking and online learning to maintain young children’s learning at home. During quarantine and nationwide school closures, parents of young children and children with disabilities had to act as teachers, therapists and caregivers. The role of parents gained relevance and it was needed to be able to guide their children to use technology during online learning. Digital resources provided an opportunity for children to keep learning, take part in games and keep in touch with their friends and teachers. But it increased access online brings heightened risks for children’s safety, protection and privacy, so it is necessary that parents observe their children and support them. In this context, this paper presents the perception from parents about on the use of digital resources and techno-logical tools that teachers applied before and during pandemic. This study surveyed 773 Peruvian parents to know which of the resources used by teachers helped their children to understand the content of the course and which of tools allowed a better interaction with their classmates and teachers. According to the results of the survey, the most used resource before pandemic has been WhatsApp (32.1%), followed by office tools (Word or Excel 20.3%) and email (8.7%). However, for carrying out online activities during the pandemic the most digital used resource by the teachers has been WhatsApp (29.9%), then YouTube (17.6%), Google Drive (16.7%) and Google Docs. (7.9%). Regarding to a good interaction to increase a better interaction between their classmates and teacher were Zoom (61.7%), Google Meet (25.1%) and WhatsApp (11.6%). These results suggested that the use of digital resources and technological tools during the pandemic has been problematic and challenging for families. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Improvement of Accessibility in Medical and Healthcare Websites

2021 , Acosta-Vargas G. , Acosta-Vargas P. , Jadán Guerrero, Janio , Salvador-Ullauri L. , Gonzalez M.

Health information on the Web can make patients better informed about a disease, which according to several studies leads to better treatment results. However, the health information found on the Web is not accessible because it presents barriers that prevent people from easily accessing it because it does not comply with the standards of the Web Content Accessibility Guidelines (WCAG) 2.1. Therefore, in this study, we present an analysis of the accessibility of the seven most visited health websites in the world. To analyze the accessibility of medical websites, we apply an automatic review method. The results show that health websites have frequent problems related to the lack of alternative text, empty links, and contrast errors. This research can contribute to future work related to accessibility in health and medical sites. Finally, we suggest designing a combined method to review each website’s accessibility barriers to complement the automatic review. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.

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Fuzzy model for back posture correction during the walk

2020 , Guevara Maldonado, César Byron , Jadán Guerrero, Janio , Bonilla-Jurado, Diego , Salvador-Ullauri L. , Acosta-Vargas P. , Calle-Jimenez T. , Lara Álvarez, Patricio

The body posture is not a purely aesthetic problem, due to it can produce a multitude of adverse effects on health, even extremities disorders (injuries) and malfunction of organs. This study focuses on the correct and incorrect detection of the position of the spine and extremities while walking. A database of three patients with lumbago and sciatica, with diagnosis of muscle tension due to poor posture while walking, has been used in this article. These patients underwent physiotherapy treatment and were later filmed taking a short walk of 2 min to see the results. This process was developed for a period of 4 weeks, divided into 2 h of physiotherapy per week and 1 h of compilation of videos with the results obtained. To detect the correct movement of each of the patients, the Kinect Xbox One device was used. It identifies all body points, alignment, speed and angles during the walk. 25 points of human body in three dimensions are detected in real time by the Kinect, which allows to generate a data collection in real time and more efficiently. With the database of patients, a pre-processing of the information is done to identify the most relevant points for our study. A fuzzy model is generated which determines maximum and minimum thresholds for the posture of the back (angle of inclination), shoulders posture (shoulders inclination with respect to the spine), head posture (inclination with respect to horizontal vision) and movement of arms. The model dynamically identifies which position is correct for the movement during the walk, and in addition, the progress that is generated during a time series. This prototype detector is used for rehabilitation of high-performance athletes and is an approximation for the correct posture during long and medium distance races, jumps, among other sports that use the walk as a basis in their workouts. This study was based on the solution of back problems in clinical patients. These preliminary tests have given excellent results in the testing phase, which validates it as an option to prevent injuries in patients with these conditions. © Springer Nature Switzerland AG 2020.

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