Mauro Callejas Cuervo

Universidad Pedagógica y Tecnológica de Colombia | UPTC · Centro de Investigación y Extensión de la Facultad de Ingeniería

Integrating emerging technologies has shown to have the potential to improve access to rehabilitation services and the adherence for physical therapy when they are applied into telemedicine environments. This systematic review aims to explore telerehabilitation systems that use motion capture and video games for upper-limb rehabilitation purposes....

This paper presents system architecture for Telephysiotherapy aimed at people with upper limb motor disorders. Furthermore, it was analyzed the state of the art in scientific research related to the provision of physical therapy services through using information technology and communications, and it was explored in literature the methods and tools...

This work presents the design, modeling and simulation of behavior of an urban transportation system of a medium size city by means of the quantification of complex variables that measure the quality of the service provided. The system was modelled by using the Bottom Up technique, which represents the dynamic or static behavior based on software a...

This report presents the creation and simulation of a model based on system dynamics, applied to a complex system, in this case a system of urban public transport for medium-sized cities, evaluating the service quality variables based on comfort and speed. Simulation was performed in four scenarios, in which the value of the variable “Time interva...

Resumen Se presenta el diseño y construcción de una guía para la evaluación de usabilidad en entornos virtuales de aprendizaje, a partir de la identificación de algunos criterios que permiten cuantificar el grado de satisfacción de los usuarios de este tipo de herramientas; para ello se llevó a cabo el desarrollo de las siguientes fases: identifica...

This paper presents a model that enables the transformation of digital signals generated by an inertial and magnetic motion capture system into kinematic information. First, the operation and data generated by the used inertial and magnetic system are described. Subsequently, the five stages of the proposed model are described, concluding with its...

Motion assistance exoskeletons are designed to support the joint movement of people who perform repetitive tasks that cause damage to their health. To guarantee motion accompaniment, the integration between sensors and actuators should ensure a near-zero delay between the signal acquisition and the actuator response. This study presents the integra...

Robotic exoskeletons are active devices that assist or counteract the movements of the body limbs in a variety of tasks, including in industrial environments or rehabilitation processes. With the introduction of textile and soft materials in these devices, the effective motion transmission, mechanical support of the limbs, and resistance to physica...

A prototype that simulates a wheelchair was built using electronic commercial devices and software implementation with the aim to operate the prototype using head movement and analyzing the system response. The controllers were simulated using MATLAB® toolbox and Python™ libraries. The mean time response of the system with manual control was 37,8 s...

Instrumentation and control for automatic wheelchairs have diversified with technological developments that include non-invasive built-in sensors to capture body signals. The use of micro-electromechanical sensors (MEMS), tilt sensors, electroencephalographic signals (EEG), electromyographic signals (EMG) and cameras to detect movements of the head...

Mechatronic systems that allow motorized activation in robotic exoskeletons have evolved according to their specific applications and the characteristics of the actuation system, including parameters such as size, mechanical properties, efficiency, and power draw. Additionally, different control strategies and methods could be implemented in variou...

An increasing availability and reliability of open-source geographical resources, options in design of mobile applications together with smartphones of a high quality, featuring top cameras and number of sensors, bring us an extraordinary opportunity to provide the visually impaired people with relevant and comprehensible information on their vicin...

Neuromotor rehabilitation and recovery of upper limb functions are essential to improve the life quality of patients who have suffered injuries or have pathological sequels, where it is desirable to enhance the development of activities of daily living (ADLs). Modern approaches such as robotic-assisted rehabilitation provide decisive factors for ef...

The design and implementation of an electronic system that involves head movements to operate a prototype that can simulate future movements of a wheelchair was developed here. The controller design collects head-movements data through a MEMS sensor-based motion capture system. The research was divided into four stages: First, the instrumentation o...

In recent years, various studies have demonstrated the potential of electroencephalographic (EEG) signals for the development of brain-computer interfaces (BCIs) in the rehabilitation of human limbs. This article is a systematic review of the state of the art and opportunities in the development of BCIs for the rehabilitation of upper and lower lim...

Processing and control systems based on artificial intelligence (AI) have progressively improved mobile robotic exoskeletons used in upper-limb motor rehabilitation. This systematic review presents the advances and trends of those technologies. A literature search was performed in Scopus, IEEE Xplore, Web of Science, and PubMed using the PRISMA (Pr...

Proceso de identificación de patrones de comportamiento a partir de técnicas de reconocimiento emocional durante la interacción con un videojuego orientado a procesos de selección de personal

Product Design (PD) currently faces challenges in new product development, since the industry is in a rush to introduce new products into the market, with customers demanding products that are faster, cheaper, and free from failure. In addition, global companies are trying to improve their product design risk assessment process to gain advantages o...

This paper presents a system that allows for the identification of two values: arousal and valence, which represent the degree of stimulation in a subject, using Russell’s model of affect as a reference. To identify emotions, a step-by-step structure is used, which, based on statistical data from physiological signal metrics, generates the represen...

Product Design is getting nowadays new challenges on developing new products, since the industry is in a rush to introduce products into the marketplace, where customers demand products faster, cheaper, and free of failures. In the meantime, global companies are always trying to improve their Product Design process to get advantages over their comp...

A proposed measurement protocol for the lower limbs movement analysis during walking is presented, with the use of a measurement system based on inertial-magnetic motion processing units and an optical system. Initially, the state of the art in terms of methods and tools for the biomechanical capture of movements is shown, to finally explore the pr...

Automatic wheelchairs have evolved in terms of instrumentation and control, solving the mobility problems of people with physical disabilities. With this work it is intended to establish the background of the instrumentation and control methods of automatic wheelchairs and prototypes, as well as a classification in each category. To this end a sear...

The use of videogames and motion capture systems in rehabilitation contributes to the recovery of the patient. This systematic review aimed to explore the works related to these technologies. The PRISMA method (Preferred Reporting Items for Systematic reviews and Meta-Analyses) was used to search the databases Scopus, PubMed, IEEE Xplore, and Web o...

Technology constitutes a support to sports training which has an influence on the preparation of the player. This article reports on the analysis of the ball interception velocity in futsal goalkeepers. For this, a tool was created based on inertial and magnetic sensors, and a contact platform which permitted the analysis of the interception veloci...

The vertical jump measure the impulsive capacity, the main goal of this study is describing the coordination and elastic and contractile components of professional soccer players when performing the power test, through jumps, made on the Axom Jump 4.0 contact platform. It is an applicative study, since it carried out a jump test which provided inpu...

An assessment of the level of balance in adolescents was done, using motion capture technologies (IMOCAP). The sample was 7 peoples, to whom a pre-test and then a post-test and intervention program were applied. The duration of the intervention program was 11 weeks, with a weekly basic gymnastics' session of 120 minutes. A diagnosis of anthropometr...

The problem of plagiarism is becoming increasingly more significant with the growth of Internet technologies and the availability of information resources. Many tools have been successfully developed to detect plagiarisms in textual documents, but the situation is more complicated in the field of plagiarism of source codes, where the problem is equ...

􀀃􀀨􀁏􀀃􀁓􀁏􀁄􀁊􀁌􀁒􀀃􀁈􀁖􀀃􀁘􀁑􀀃􀁓􀁕􀁒􀁅􀁏􀁈􀁐􀁄􀀃􀁆􀁄􀁇􀁄􀀃􀁙􀁈􀁝􀀃􀁐􀁩􀁖􀀃􀁖􀁌􀁊􀁑􀁌􀂿􀁆􀁄􀁗􀁌􀁙􀁒􀀏􀀃􀁓􀁒􀁕􀁔􀁘􀁈􀀃􀁈􀁑􀀃􀀬􀁑􀁗􀁈􀁕􀁑􀁈􀁗􀀃 se encuentra disponible enormes recursos de información. Detectar plagio en el código fuente de proyectos desarrollados por estudiantes en las universidades es aún más difícil, debido a que año tras año se generan un sin número de nuevos proyectos académicos y son pocas las he...

Las empresas de base tecnología cumplen con iniciativas o emprendimientos basados en procesos de innovación; en Colombia han tenido auge en los últimos años, experimentado cambios trascedentes que han impulsado el crecimiento económico del País, conllevando a la evolución del emprendimiento (Innpulsa Colombia, 2016). El Grupo de Investigación en So...

El avance vertiginoso de la tecnología ha hecho que el software esté presente en la mayoría de los campos del conocimiento, con lo cual se reafirma la importancia de aplicar ingeniería de software, disciplina que fomenta la aplicación de un enfoque sistemático, disciplinado y cuantificable al desarrollo, la operación y el uso del software [1], pues...

An agent-based modeling software is here presented which simulates the measurement of the quality of the service offered by a collective public transport system, through the evaluation of the variables of comfort and speed. The simulator takes into account the trajectory of a route from the bus terminal to its last stop, pausing at each of the stop...

La disponibilidad de los medios digitales ha proporcionado una poderosa herramienta para expresar opiniones incluyendo aspectos sociales y políticos desarrollados en cada región. En Colombia, el uso de redes sociales ha dado lugar a la difusión masiva de opiniones políticas, especialmente durante el período de campaña en las elecciones presidencial...

En los proyectos de investigación desarrollados dentro del Grupo de Investigación en Software GIS de la Universidad Pedagógica y Tecnológica de Colombia (UPTC), se hace uso de diversos métodos, técnicas y tecnologías para la captura del movimiento biomecánico, en donde se evidencian problemáticas relacionadas con la contaminación de las señales rec...

This paper presents a characterization of the wireless transmission of biomechanical signals in an embedded system, where a TCP protocol is used in an IEEE 802.11 communications network (Wi-Fi). The embedded system under study, called Imocap, allows the collection, analysis and transmission of biomechanical signals in real-time for various applicat...

Performing macro and microscopic analysis of a complex system, as in the case of measuring variables of quality of service provided by system of public passenger transport, is a problem, even more, if it is about integration of information produced in a minimum period of time that should serve as an input for realization of macroscopic analysis of...

Se presenta una guía de evaluación de calidad de objetos virtuales de aprendizaje [OVA], como apoyo a la educación básica secundaria y media. Se toman como referentes aspectos pedagógicos y lineamientos curriculares establecidos por el Ministerio de Educación Nacional [MEN] para las áreas de conocimiento impartidas en las instituciones colombianas....

The present article describes the creation and operation of a device for biomechanical analysis, which is portable, precise, non-invasive, and which allows us to autonomously obtain the position, orientation and measurement of the articular amplitude of two body segments connected by a joint. The above is carried out with data obtained from a numbe...

Cualquier acción educativa que se proponga, enfocada a la actividad física debe tener como principio fundamental, el desarrollo de los patrones básicos de locomoción, las habilidades motrices y el desarrollo de las capacidades físicas, así como lo propone Winter (1988). Por esta razón es importante implementar actividades dentro de la educación fís...

Los modelos utilizados en la planeación de la operación de los sistemas de transporte público colectivo urbano (TPCU) de pasajeros en ciudades medianas o intermedias (de menos de 150 000 habitantes) tienen características propias que difieren significativamente de las utilizadas en las grandes ciudades; para el análisis y modelado de dichos sistema...

Este trabajo presenta una arquitectura para la medición e integración de bioparámetros basado en unidades de procesamiento de movimiento inercial-magnético (MPUs) y electromiografía (EMG). Derivado de la arquitectura propuesta, se logró desarrollar un dispositivo llamado Imocap, el cual reúne y utiliza las mejores características de la tecnología M...

A guide to evaluation of the quality of Virtual Learning Objects (VLO) is presented as support for basic secondary and middle education. The pedagogical aspects and curriculum guidelines issued by the Ministry of National Education (MEN, Spanish acronym) for areas of knowledge taught in Colombian institutions are taken as a reference. The study was...

This article presents the proof of concept of a proposed architecture that allows building an environment to automate the activities of planning, monitoring and controlling of a project, from the integration of workflow tools and scheduling of project. In order to validate the architecture, it was implemented on the Intalio tool as a workflow and O...

The teaching of software engineering and specifically the requirements engineering, presents some particularities that require the use of strategies to encourage students to hold on to the principles of this important discipline in software development. Therefore, an investigation is presented in which methodological and pedagogical guides are crea...

Advances in knowledge and technology in various fields of human life and, particularly, in sports have resulted in innovative systems for professional sportsmen training. Here, we designed an electromagnetic system for practicing indoor cycling; this system can precisely simulate on the track the ascents and descents that allow the users to feel li...

It presents a proposal for the design of physical infrastructure with the minimum requirements necessary for the construction of a laboratory that adapts to the development of the subjects of Requirements Engineering and Management of computer projects of the program of Systems Engineering and Computing of the Universidad Pedagógica y Tecnológica d...

La personalidad juega un rol significativo en decidir si un individuo tiene la actitud o motivación requerida para realizar una tarea específica, la Asociación Americana de Psicología define la personalidad como un patrón de comportamiento y pensamiento particular que prevalece a través del tiempo y del contexto, y que diferencia a las personas ent...

Emotion recognition systems from physiological signals are innovative techniques that allow studying the behavior and reaction of an individual when exposed to information that may evoke emotional reactions through multimedia tools, for example, video games. This type of approach is used to identify the behavior of an individual in different fields...

El análisis del movimiento humano ha llegado a ser fundamental para una amplia gama de aplicaciones, tales como terapias físicas, neuro-rehabilitación, medicina deportiva, la evaluación de la funcionalidad del sistema motor y la medicina del trabajo. Este artículo se centra en el diseño, implementación y validación de un electrogoniómetro portátil...

R e s u m e n Existen diferentes modelos de calidad del software que permiten un proceso de mejora continua con su implementación. En el presente escrito se exponen características de los modelos investigados a través de una revisión de información, se realiza una clasificación de los mismos de acuerdo con el nivel de proceso o de producto; cada mo...

Emotional recognition is a groundbreaking technique currently used in research where it is necessary to evaluate the emotional reaction of an individual with respect to the content which is being exposed, thanks to advances in electronic devices and computing this technique is used in different fields as an interdisciplinary study.Physiological sig...

In the capture of biomechanical signals, the application of Kalman filters allows a correction ofthe error caused by disturbances or noise in the system.This article presents a comparison of the performance of an Unscented Kalman Filter and an Extended Kalman Filter with the objective of identifying which of the two has a better performance for use...

A study that was carried out in the Systems and Computer Engineering programme of the Universidad Pedagógica y Tecnológica de Colombia, on the current state of the subjects of the area of Software Engineering and Information Technology Management with respect to the contents and strategies included in the Software Engineering Body of Knowledge (Swe...

This paper, presents an inertial and magnetic sensor based technological platform, intended for articular amplitude monitoring and telerehabilitation processes considering an efficient cost/technical considerations compromise. The particularities of our platform offer possibilities of a high social impact by making telerehabilitation accessible to...

A tool used to capture biomechanical signals from the upper limb is presented here. The methods used for data acquisition, signal fusion and joint amplitude measurements, elbow flexion/extension and pronation/supination, are also presented. To that aim, a device using two inertial and magnetic sensors fixed to the arm and the forearm body segments...

p>El artículo presenta los resultados de una serie de experimentos para calibrar y validar un sistema de captura de información cinemática asociado al movimiento de flexión/extensión de la articulación del codo, con sensores inerciales, para lo cual se construyó una plataforma con un potenciómetro de precisión usado como referencia de posición angu...