RESUMO

OBJECTIVE: This study aimed to assess whether prior knowledge of computer use determines performance of virtual reality tasks by postmenopausal women and whether menopausal symptoms, sociodemographic factors, lifestyle and cognition modify or interfere with their performance. METHOD: This cross-sectional study included 152 postmenopausal women divided into two groups: computer users and non-users. Age, ethnicity, time of menopause, menopausal symptoms, female health status, level of physical activity and cognitive function were considered. The participants played a virtual reality game and were assessed for hits, errors, omissions and game time. The Mann-Whitney, chi-square and Fisher exact tests and multivariate linear regression analysis were used. RESULTS: Postmenopausal computer users play virtual reality games (p = 0.005) better than postmenopausal non-users of computers. Vasomotor symptoms were high in women who used computers compared to those who did not (p = 0.006). Multivariate linear regression analysis found that the best-fitting predictors for the number of hits - that is, age (p = 0.039), Mini-Mental State Examination score (p = 0.006) and the headache symptom (p = 0.021) - influence the performance of virtual reality tasks. CONCLUSION: Computer users performed virtual reality tasks better than non-users. Headache and age but not vasomotor symptoms negatively affected the postmenopausal women's performance.

Assuntos

RESUMO

ABSTRACT Purpose The Orofacial Myofunctional Evaluation with Scores (OMES) protocol has been validated and used in clinical practice and research. The goals of this study were to develop, analyze and improve a version of OMES for the Web and to investigate the relationship between the usability judgments and the prior experience of the evaluators and whether using the interface promotes learning, as shown by the task completion time (TCT). Methods Study steps: 1) inspection of the prototype by the team; 2) evaluation of usability by three experienced speech-language pathologists (SLPs); and 3) evaluation of its usability by 12 SLPs with varying levels of experience in the use of OMES. Participants answered the Heuristic evaluation (HE), the Computer System Usability Questionnaire (CSUQ), and expressed free comments. The TCT was recorded. Results The OMES-Web reached excellent usability levels, and the participants were highly satisfied. The correlations between the participants' experience and the HE and CSUQ scores were not significant. The TCT decreased significantly throughout the tasks. Conclusion OMES-Web meets the usability criteria, and participants feel satisfied with the system regardless of their level of experience. The fact that it is easy to learn favors its adoption by professionals.

RESUMO Objetivo O Protocolo de Avaliação Miofuncional Orofacial com Escores (AMIOFE) é validado e usado na prática clínica e pesquisas. Os objetivos deste estudo foram desenvolver, analisar e aprimorar a versão do AMIOFE para a Web e investigar a relação entre os julgamentos de usabilidade e a prévia experiência dos avaliadores, e se o manuseio da interface promove o aprendizado, baseado no tempo para completar a tarefa (TCT). Método Passos do estudo: 1) inspeção do protótipo pela equipe; 2) avaliação de usabilidade por três fonoaudiólogos experientes; e 3) avaliação de usabilidade por 12 fonoaudiólogos com variados níveis de experiência no uso do AMIOFE. Avaliação heurística (HE), Computer System Usability Questionnaire (CSUQ) e livre expressão dos participantes foram realizadas. O TCT foi registrado. Resultados O AMIOFE-Web atingiu ótimos níveis de usabilidade e os participantes mostram-se altamente satisfeitos (Escala geral do CSUQ; Média= 1,31, DP= 0,31). A relação da experiência dos participantes e a HE e o CSUQ não foi significativa. O TCT decresceu significantemente ao longo das tarefas, mostrando que o sistema é fácil de aprender e usar. Conclusão O AMIOFE-Web atende os critérios de usabilidade e os participantes sentiram-se satisfeitos com o sistema, independentemente de seus níveis de experiência. O fato de ser de fácil aprendizado é um fator favorável para a sua adoção por profissionais.

RESUMO

Technological advances have been impacting health care worldwide. Our study aimed to research the literature systematically to determine the impact of technological treatments versus conventional treatments on the quality of life of climacteric women. The study was registered on PROSPERO (CRD42021241638). We searched seven databases, including PRISMA, using mesh terms. After screening for eligibility, we selected five clinical trials, and applying the snowball technique we were able to include four more articles, totaling nine articles that used technology-based interventions (virtual reality games) during the climacteric. The total study population consisted of 298 climacteric women. Two studies evaluated a technology-based treatment for pelvic floor, one for urinary incontinence symptoms, three for postural balance, one for cardiorespiratory capacity, one for osteoporosis and one study for lower back pain. The studies showed that the technological treatments improved pelvic floor strength, balance, cardiorespiratory fitness and bone mineral density when compared to conventional treatments. Improvement was linked to adherence to training and a high level of satisfaction during the training sessions. Technology-based treatments appear to be a viable alternative to conventional treatments in improving the quality of health, with benefits for the cardiovascular, genitourinary and skeletal systems, and ultimately for the overall quality of life.

Assuntos

RESUMO

Objective: To recognize the usefulness of incorporating Three-Dimensional models of standardized humans in electronic health records, in the context of the development of a teledentistry web platform designed for the attention of the elderly population in COVID-19 pandemic context. Material and Methods: A teledentistry web platform designed with different modules for clinical records. Through a new user-computer interface with a standardized virtual 3D phantom, an extraoral physical examination, an intraoral examination section was modeled. A label-associated marker is allowed to record descriptive aspects of the findings. A 3D odontogram represents multiple patient's conditions for each of the 32 dental positions. Results: From a total of 135 patients registered on the platform, 51 markers and 33 photographs associated with the surface of the virtual 3D phantoms were recorded. For the Location parameter: Hard palate 27.6%, inserted gingiva 15.7%, tongue 15.6%. For the Type of lesion parameter (according to the information entered in the pathology selector): unidentified 35.3%, sub-prosthetic stomatitis 23.5%, irritative fibroma 9.8%. Through the registration of the exact location of the finding in the virtual phantom by a 3D marker, the 3D modeling of the oral pathologies contributed to a better diagnosis, improving the remote communication between the attending dentist and specialists. Conclusion: The combination of the 3D modeling and anatomical-referencing in a teledentistry platform can become a powerful tool for the dental practice, due to their utility and specificity.

Objetivo: Reconocer la utilidad de incorporar modelos tridimensionales de humanos estandarizados en registros electrónicos de salud, en el contexto del desarrollo de una plataforma web de teleodontología diseñada para la atención de la población adulta mayor en contexto de pandemia por COVID-19. Material y Métodos: Una plataforma web de teleodontología diseñada con diferentes módulos para historias clínicas. A través de una nueva interfaz usuario-computadora con un fantoma 3D virtual estandarizado, se modeló un examen físico extraoral, una sección de examen intraoral. Se permite un marcador asociado a la etiqueta para registrar aspectos descriptivos de los hallazgos. Un odontograma 3D representa múltiples condiciones del paciente para cada una de las 32 posiciones dentales.Resultados: De un total de 135 pacientes registrados en la plataforma, se registraron 51 marcadores y 33 fotografías asociadas a la superficie de los fantomas virtuales 3D. Para el parámetro Ubicación: Paladar duro 27,6%, encía insertada 15,7%, lengua 15,6%. Para el parámetro Tipo de lesión (según la información ingresada en el selector de patología): no identificado 35,3%, estomatitis subprotésica 23,5%, fibroma irritativo 9,8%. A través del registro de la ubicación exacta del hallazgo en el fantoma virtual mediante un marcador 3D, el modelado 3D de las patologías orales contribuyó a un mejor diagnóstico, mejorando la comunicación remota entre el odontólogo tratante y los especialistas. Conclusión: La combinación del modelado 3D y la referenciación anatómica en una plataforma de teleodontología puede convertirse en una poderosa herramienta para la práctica odontológica, debido a su utilidad y especificidad.

Assuntos

RESUMO

RESUMEN Fundamento: dotar a los profesionales de Estomatología de conocimientos para su actuación frente a la pandemia de la COVID-19 es una necesidad; realizarlo en un ambiente virtual, un desafío. Objetivo: describir el uso de la aplicación WhatsApp en un curso sobre la atención estomatológica en tiempos de la COVID-19. Métodos: se realizó una investigación descriptiva en los meses de mayo a junio de 2020 en el Hospital Militar Universitario "Manuel Fajardo Rivero" de Santa Clara, Villa Clara. Se utilizaron métodos teóricos: análisis-síntesis y enfoque sistémico; empíricos: revisión bibliográfica para la selección y fundamentación de contenidos del curso, técnica de lo positivo, negativo e interesante y el criterio de especialistas para la valoración del producto diseñado. Resultados: el curso estuvo estructurado en cuatro temas, con sus objetivos, contenidos, orientaciones metodológicas, tareas docentes y bibliografía básica. Concluido su diseño, fue valorado por especialistas e implementado en un ambiente virtual (WhatsApp) durante un mes. Se destacaron sus aspectos: positivo, la aplicabilidad de los contenidos impartidos; negativo, la limitación de la tecnología por carencias de teléfonos móviles; e interesante, la actualización permanente de los temas en consonancia con los artículos publicados en línea. Conclusiones: la aplicación WhatsApp se propone como una herramienta para promover la participación e interacción durante el curso y como un recurso didáctico que potenció el aprendizaje desde la educación a distancia.

ABSTRACT Background: providing dental professionals with knowledge for their performance while facing the COVID-19 pandemic is a necessity; doing it in a virtual environment is really a challenge. Objective: to describe the use of the WhatsApp application in a course on dental care in times of COVID-19. Methods: a descriptive research was carried out from May to June 2020 at the "Manuel Fajardo Rivero" Army University Hospital in Santa Clara, Villa Clara. Theoretical methods were used: analysis-synthesis and systemic approach; empirical ones: bibliographic review for the selection and foundation of course content, positive, negative and interesting technique and the criteria of specialists for the evaluation of the designed product. Results: the course was structured in four topics, with their objectives, contents, methodological guidelines, teaching tasks and basic bibliography. Once its design was completed, it was evaluated by specialists and implemented in a virtual environment (WhatsApp) for a month. Its aspects were highlighted: positive, the applicability of the contents taught; negative, the limitation of technology due to lack of mobile phones; and interesting, the steady updating of the topics in line with the articles published online. Conclusions: the WhatsApp application is proposed as a tool to promote participation and interaction during the course and as a didactic resource that promoted learning from distance learning.

Assuntos

RESUMO

The aim of this study was to evaluate the usability of the free software available that allow visualization and measurement of orthodontic digital models. 80 graduate students of orthodontics were asked to perform pre-defined tasks in a digital model through 3D Viewer ® and 3D-Tool ® software. The success in accomplishing the tasks and the time spent were recorded. To end, each participant answered a questionnaire to express their satisfaction regarding the software. There were no statistically significant difference between the software when compared to the accomplishment rates of tasks and the time spent by participants on each one. The software were evaluated as "slightly satisfactory" in several criteria. There is scope for optimization of orthodontic software by manufacturers since lack of their interface usability can discourage orthodontists' adherence to new resources that could provide benefits to their daily routine, even if they are freely available.

Assuntos

RESUMO

ABSTRACT Objective: The objectives of the present study were to develop a method for longitudinally measuring tooth rotation, inclination and angulation on digital models, and to test the method validity and reliability. Methods: The initial and final planned models of 14 patients treated with Invisalign® (386 teeth) were exported from ClinCheck®. The rotation, inclination and angulation values were assessed for the incisors, canines, premolars and molars, in both models, using trigonometry. An application was developed in Python 2.7 to automate the measurements. The ∆planned (variation in the position between the initial and final planned models) was obtained for each tooth and each type of movement. To test the validity, the degree of agreement between the ∆planned and the values available in the Invisalign® Table of Movements was assessed using the Intraclass Correlation Coefficient (ICC) and Bland-Altman analysis. For intra and inter-rater reliabilities, the ∆planned was obtained again. Results: Excellent ICCs (> 0.9) and limits of agreement with narrow and clinically acceptable discrepancies were obtained for the rotation of all teeth (except maxillary canines, which had broader limits: -3.47 - 5.43) and for the inclination of premolars and molars. The inclination of anterior teeth and angulation of all teeth had ICCs and limits that were not indicative of great agreement. The reliability was high for the three movements (discrepancy <2°). Conclusions: The method developed is reliable and suitable for longitudinally measuring inclination (posterior teeth) and rotation (except maxillary canines). It has limited value for the other movements measurements.

RESUMO Objetivo: Os objetivos do presente estudo foram desenvolver um método para medir longitudinalmente a rotação, inclinação e angulação dentárias em modelos digitais, e testar sua validade e reprodutibilidade. Material e Métodos: Os modelos inicial e final planejado de 14 pacientes tratados com Invisalign® (386 dentes) foram exportados do ClinCheck®. Os valores de rotação, inclinação e angulação foram calculados para incisivos, caninos, pré-molares e molares, em ambos os modelos, por meio de trigonometria. Um aplicativo desenvolvido em Python 2.7 foi utilizado para automatização das medidas. O ∆planejado (variação na posição entre os modelos inicial e final planejado) foi obtido para os movimentos descritos, nos diferentes grupos de dentes. A validade do método foi verificada pelo grau de concordância entre o ∆planejado e os valores disponíveis na Tabela de Movimentos do Invisalign®, utilizando-se o Coeficiente de Correlação Intraclasse (ICC) e a análise de Bland-Altman. O ∆planejado foi novamente calculado para análise da reprodutibilidade intra e interexaminadores. Resultados: Excelentes ICCs (> 0,9) e limites de concordância com discrepâncias reduzidas e clinicamente aceitáveis foram obtidos para a rotação de todos os dentes (exceto os caninos superiores, que expressaram limites mais amplos: -3,47 - 5,43) e para a inclinação de pré-molares e molares. A inclinação dos dentes anteriores e a angulação de todos os dentes apresentaram ICCs e limites não representativos de boa concordância. A reprodutibilidade foi alta para os três movimentos (discrepância < 2°). Conclusões: O método desenvolvido é reprodutível e se mostrou adequado para mensuração longitudinal da inclinação de dentes posteriores e rotação de todos os dentes, exceto caninos superiores. Apresenta valor limitado para as demais mensurações.

Assuntos

RESUMO

Resumen La pandemia de COVID-19 ha llevado a la implementación del aislamiento preventivo como medida de salud pública y con esto, se presentan nuevos retos para las instituciones de educación superior y en especial para carreras con alto contenido presencial. Se realizó una revisión de la literatura en Pubmed en conjunto con textos de referencia en educación virtual, educación médica, opiniones de expertos y artículos derivados de estos por método bola de nieve. Las ventajas de la educación médica virtual hacen alusión, en su mayoría, a la flexibilidad en tiempo, espacios, oportunidades y recursos desde un enfoque individualizado. Las desventajas, por su parte, dependen de la falta de preparación en infraestructura, así como por parte de docentes y estudiantes para las nuevas modalidades. Las recomendaciones se basan en un cambio de estrategia en el que el estudiante pueda abordar los contenidos de forma amigable y resumida previo a las clases en-vivo y que estas últimas tengan un enfoque dirigido a la complementación y resolución de dudas. Se presentan recomendaciones para los docentes que actualmente dictan sus contenidos de manera virtual para favorecer el aprendizaje y cumplimiento de objetivos. Se incluye un anexo con herramientas para el desarrollo de clases y otros contenidos útiles para el estudio de temas en distintas áreas.

Abstract The COVID-19 pandemic has led to the implementation of preventive isolation as a public health measure and with these new challenges are presented for higher education institutions and especially for careers with high attendance content. A literature review was conducted in Pubmed in conjunction with reference texts in virtual education, medical education, expert opinions and articles derived from these by the snowball method. The advantages of virtual medical education mostly refer to flexibility in time, space, opportunities and resources from an individualized approach. The disadvantages, on the other hand, depend on the lack of preparation in infrastructure, as well as by teachers and students for the new modalities. The recommendations are based on a change of strategy in which the student can approach the contents in a friendly and summarized way prior to the live classes and that the latter have a focus directed to the complementation and resolution of doubts. Recommendations are presented for teachers who currently teach their contents in a virtual way to favour learning and the fulfilment of objectives. An annex is included with tools for the development of classes and other useful content for the study of topics in different areas.

RESUMO

BACKGROUND: The high cost and low availability of virtual reality simulators in surgical specialty training programs in low- and middle-income countries make it necessary to develop and obtain sources of validity for new models of low-cost portable simulators that enable ubiquitous learning of psychomotor skills in minimally invasive surgery. OBJECTIVE: The aim of this study was to obtain validity evidence for relationships to other variables, internal structure, and consequences of testing for the task scores of a new low-cost portable simulator mediated by gestures for learning basic psychomotor skills in minimally invasive surgery. This new simulator is called SIMISGEST-VR (Simulator of Minimally Invasive Surgery mediated by Gestures - Virtual Reality). METHODS: In this prospective observational validity study, the authors looked for multiple sources of evidence (known group construct validity, prior videogaming experience, internal structure, test-retest reliability, and consequences of testing) for the proposed SIMISGEST-VR tasks. Undergraduate students (n=100, reference group), surgical residents (n=20), and experts in minimally invasive surgery (n=28) took part in the study. After answering a demographic questionnaire and watching a video of the tasks to be performed, they individually repeated each task 10 times with each hand. The simulator provided concurrent, immediate, and terminal feedback and obtained the task metrics (time and score). From the reference group, 29 undergraduate students were randomly selected to perform the tasks 6 months later in order to determine test-retest reliability. RESULTS: Evidence from multiple sources, including strong intrarater reliability and internal consistency, considerable evidence for the hypothesized consequences of testing, and partial confirmation for relations to other variables, supports the validity of the scores and the metrics used to train and teach basic psychomotor skills for minimally invasive surgery via a new low-cost portable simulator that utilizes interaction technology mediated by gestures. CONCLUSIONS: The results obtained provided multiple sources of evidence to validate SIMISGEST-VR tasks aimed at training novices with no prior experience and enabling them to learn basic psychomotor skills for minimally invasive surgery.

RESUMO

BACKGROUND: Simulation in virtual environments has become a new paradigm for surgeon training in minimally invasive surgery (MIS). However, this technology is expensive and difficult to access. OBJECTIVE: This study aims first to describe the development of a new gesture-based simulator for learning skills in MIS and, second, to establish its fidelity to the criterion and sources of content-related validity evidence. METHODS: For the development of the gesture-mediated simulator for MIS using virtual reality (SIMISGEST-VR), a design-based research (DBR) paradigm was adopted. For the second objective, 30 participants completed a questionnaire, with responses scored on a 5-point Likert scale. A literature review on the validity of the MIS training-VR (MIST-VR) was conducted. The study of fidelity to the criterion was rated using a 10-item questionnaire, while the sources of content-related validity evidence were assessed using 10 questions about the simulator training capacity and 6 questions about MIS tasks, and an iterative process of instrument pilot testing was performed. RESULTS: A good enough prototype of a gesture-based simulator was developed with metrics and feedback for learning psychomotor skills in MIS. As per the survey conducted to assess the fidelity to the criterion, all 30 participants felt that most aspects of the simulator were adequately realistic and that it could be used as a tool for teaching basic psychomotor skills in laparoscopic surgery (Likert score: 4.07-4.73). The sources of content-related validity evidence showed that this study's simulator is a reliable training tool and that the exercises enable learning of the basic psychomotor skills required in MIS (Likert score: 4.28-4.67). CONCLUSIONS: The development of gesture-based 3D virtual environments for training and learning basic psychomotor skills in MIS opens up a new approach to low-cost, portable simulation that allows ubiquitous learning and preoperative warm-up. Fidelity to the criterion was duly evaluated, which allowed a good enough prototype to be achieved. Content-related validity evidence for SIMISGEST-VR was also obtained.

Assuntos

RESUMO

BACKGROUND: New technologies create possible new ways of action, interaction, and learning which is extremely relevant in the field of oral health education. There is a lack of protocol in using an immersive interactive ludic-educational interface to motivate oral hygiene practice in children by means of augmented reality. OBJECTIVE: This study aims to present a protocol on the development of a serious game to motivate oral hygiene practice in children. METHODS: A serious game will be designed by augmented reality techniques to improve toothbrushing effectiveness of children aged 6 to 10 years. The functional structure of this interface is activated by means of movements recognized by Kinect (Microsoft Corp). The toothbrushing technique will be available in the game, enabling the children to execute the movement in the virtual environment. By identifying errors, this game will be tailored to improve the oral health of children by correcting the technique and teaching the user the adequate toothbrushing method. A template analysis will be performed to identify barriers and facilitators in each scenario. RESULTS: After the implementation of the virtual interactive and immersive panels, enrollment will begin and evaluations will be made by means of questionnaires distributed to participants who interact with the game. Thus, an analysis of the product efficacy will be conducted. The expected outcome will be to obtain a digital instrument to motivate oral hygiene practice and enhance health awareness in children. CONCLUSIONS: The serious game will support the prevention of oral diseases by sharing scientific research in the school environment and community. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/10987.

RESUMO

RESUMEN La educación superior experimentó una transformación con la integración de las Tecnologías de la Información y la Comunicación en las propuestas curriculares. Con su implementación se hizo necesario ofrecer al alumno un conocimiento específico de los nuevos modos y herramientas de comunicación. Para ello, la red de salud cubana Infomed, cuenta con dos proyectos principales: la Biblioteca Virtual de la Salud y la Universidad Virtual de la Salud. En el año 1999 surgió la Cátedra de Universidad Virtual en la Universidad de Ciencias Médicas de Villa Clara. Hasta el momento se han realizado tres actualizaciones de este sitio, lo cual ha permitido la capacitación de cientos de profesionales. Se puede afirmar que el proyecto Universidad Virtual de la Salud de Villa Clara, en sus veinte años de servicio, ha evolucionado satisfactoriamente y se encuentra al servicio de todos los profesionales de la salud.

ABSTRACT Higher education underwent a transformation with the integration of Information and Communication Technologies in curricular proposals. Offering the student a specific knowledge of the new ways and tools of communication became necessary with its implementation. To this end, the health information network of Cuba (INFOMED) has two main projects: the Virtual Health Library and the Virtual Health University. The Virtual University Professorship was created at the University of Medical Sciences of Villa Clara in 1999. So far three updates have been made to this site, which has allowed the training of hundreds of professionals. We can state that the Virtual Health University project in Villa Clara, in its twenty years of service, has evolved satisfactorily and is at the service of all health professionals.

Assuntos

RESUMO

We developed and evaluated the usability of Check-up Surgery, a surgery application from the mApp® Platform. The Usability Engineering Cycle was used as method of development. The results showed that the Check-up Surgery application had excellent usability criteria with an average of 4.63 to 4.70 by 81% of the evaluators. For all the interviewees there was statistical significance in relation to the usability criteria of the application, with pValue ≤.05.

Assuntos

RESUMO

BACKGROUND: Nutrition, diet, and fitness are among the most searched health topics by internet users. Besides that, health-related internet users are diverse in their motivations and individual characteristics. However, little is known about the individual characteristics associated with the usage of nutrition, weight loss, and fitness websites. OBJECTIVE: The aim of this study was to examine the individual factors associated with the usage of nutrition, weight loss, and fitness websites. METHODS: An invitation to an online survey was published on 65 websites and discussion forums. In total, we employed data from 623 participants (aged 13 to 39 years, mean 24.11 [SD 5.26]). The measures included frequency of usage of nutrition, weight loss and fitness websites, excessive exercise, eating disorder symptomatology, internalization of the beauty ideal, weight status, and perceived online social support. Participants' data were used as predictors in a base linear regression model. RESULTS: The final model had an acceptable fit (χ210 =14.1; P=.17; root mean square error of approximation=0.03; comparative fit index=0.99; Tucker-Lewis index=0.99). Positive associations were found between usage of (1) nutrition websites and being female, higher levels of excessive exercise, and perceived online social support; (2) weight loss websites and excessive exercise, internalization, being female, eating disorder symptomatology, and being overweight or obese; and (3) fitness websites and levels of excessive exercise, internalization, and frequency of internet use. CONCLUSIONS: The results highlighted the importance of individual differences in the usage of health-related websites.

Assuntos

RESUMO

BACKGROUND: Amyotrophic Lateral Sclerosis (ALS) is a rapid progressive neurodegenerative disease, characterized by a selective loss of motor neurons, brain stem and spinal cord which leads to deterioration of motor abilities. Devices that promote interaction with tasks on computers can enhance performance and lead to greater independence and utilization of technology. OBJECTIVE: To evaluate performance on a computer task in individuals with ALS using three different commonly used non-immersive devices. METHOD: Thirty individuals with ALS (18 men and 12 women, mean age 59 years, range 44-74 years) with a mean score of 26, (minimum score of 14 and maximum 41) on the Revised Amyotrophic Lateral Sclerosis Functional Rating Scale (ALSFRS-R) and 30 healthy controls matched for age and gender, participated. All participants were randomly divided into three groups, each using a different device system (motion tracking, finger motion control or touchscreen) to perform three task phases (acquisition, retention and transfer). RESULTS: Both the ALS and control group (CG) showed better performance on the computer task when using the touchscreen device, but there was limited transfer of performance onto the task performed on the Finger Motion control or motion tracking. However, we found that using the motion tracking device led to transfer of performance to the touchscreen. CONCLUSION: This study presents novel and important findings when selecting interaction devices for individuals with ALS to access technology by demonstrating immediate performance benefits of using a touchscreen device, such as improvement of motor skills. There were possible transferable skills obtained when using virtual systems which may allow flexibility and enable individuals to maintain performance overtime. TRIAL REGISTRATION: Registration name: Virtual Task in Amyotrophic Lateral Sclerosis; Registration number: NCT03113630 ; retrospectively registered on 04/13/2017. Date of enrolment of the first participant to the trial: 02/02/2016.

Assuntos

RESUMO

Spatial orientation is a cognitive domain frequently impaired in Alzheimer's Disease and can be one of its earliest symptoms. OBJECTIVE: This paper describes the results of tolerability, sense of presence and usability of two immersive virtual reality tasks for the assessment of spatial orientation, using VR headset in adults. METHODS: 31 healthy adults recruited from university and the local community performed two experimental immersive virtual reality tasks of spatial orientation: the SOIVET-Maze for the assessment of allocentric to egocentric spatial abilities and the SOIVET-Route for the assessment of spatial memory and landmark recognition. Participants completed questionnaires about sense of presence, cybersickness symptoms, technology use profile and motion sickness history. Usability measures were assessed by spontaneous feedback from participants. RESULTS: All participants were able to understand the task instructions and how to interact with the system. Both tasks seemed to induce a strong sense of presence, as assessed by the Witmer and Singer Presence Questionnaires (M=128 and 143 for SOIVET-Maze and SOIVET-Route, respectively). The SOIVET-Route had a small numeric advantage over the SOIVET-Maze tolerability scores assessed by the Cybersickness Questionnaire (M=4.19, SD=5.576 and M=3.52, SD=6.418 for SOIVET-Maze and SOIVET-Route respectively). Also, there were no drop-outs on the SOIVET-Route due to tolerability issues, unlike the SOIVET-Maze, which had two drop-outs. However, this difference was not statistically significant (Z= -.901, p= 0.368, Wilcoxon signed-rank test).

A orientação espacial é um domínio cognitivo freqüentemente comprometido na doença de Alzheimer e pode ser um dos primeiros sintomas manifestados. OBJETIVO: Este artigo descreve os resultados de tolerabilidade, sensação de presença e usabilidade de duas tarefas imersivas de realidade virtual para avaliação da orientação espacial, utilizando óculos de RV em adultos. MÉTODOS: 31 adultos saudáveis, ​​recrutados entre estudantes universitários e da comunidade local, realizaram duas tarefas de realidade virtual imersiva para avaliação da orientação espacial: A tarefa SOIVET-Maze para avaliação da capacidade de transposição da orientação alocêntrica para egocêntrica e a tarefa SOIVET-Route para avaliação da memória espacial e reconhecimento de pontos de referência. Os participantes também responderam questionários sobre Sensação de Presença, Sintomas de cybersickness, Perfil de Uso de Tecnologia e Histórico de cinetose. Feedback espontâneo dos participantes foi utilizado como medida de usabilidade. RESULTADOS: Todos os participantes conseguiram compreender as instruções da tarefa e como interagir com o sistema. Ambas tarefas parecem induzir forte sensação de presença, avaliada pelo Questionário de Presença de Witmer e Singer (M=128 e 143 para SOIVET-Maze e SOIVET-Route, respectivamente). A tarefa SOIVET-Route teve uma pequena vantagem numérica em relação à tarefa SOIVET-Maze na pontuação de tolerabilidade avaliada pelo Questionário de Cybersickness (M=4,19, SD=5,576 e M=3,52, SD=6,418 para SOIVET-Maze e SOIVET-Route respectivamente). Além disso, não houve desistências na SOIVET-Route devido a problemas de tolerabilidade, ao contrário da SOIVET-Maze, que teve dois drop-outs. No entanto, essa diferença não foi estatisticamente significativa (Z= -901, p=0,368, teste de postos sinalizados de Wilcoxon).

RESUMO

INTRODUCTION: Medical schools face increasing challenges to accommodate new health care needs. However, little has changed regarding the students' education. In addition, educators face the challenge of improving their teaching approach, making it suitable and effective for the new generation. The purpose of this work was to describe and contextualize the application of active pedagogical methodologies using the virtual learning environment (VLE) as a tool to improve the students' performance. METHODS: This research is a quantitative and qualitative case study, carried out in one faculty of medicine in the state of Amazonas. Given a total population of senior students in this faculty, the number of participants corresponds to a proportion of 75% in the period of two years. This work required a paradigm shift, by focusing on interactive and technological teaching, professionalism, mentoring, communication, and feedback. Courses using virtual learning environment (VLE) should be prone to interaction, dialogue, collaboration and, asynchronously, autonomy. One of the key aspects of VLE content production is to select appropriate subject matters and texts to be discussed. It is through the VLE contents that the mediation of knowledge construction process and the participants' interaction takes place. RESULTS: The improvement over the pre-test evaluation was evident, ranging between 12.59 and 50.9%, depending on the subject matter, to 81.31% in the final evaluation. In addition, the students expressed consistently positive opinions regarding the use of VLE. CONCLUSION: The use of VLE as a pedagogical tool, in an interactive format and appropriate to the transmission of information and knowledge construction, was adequate for an evident improvement in the cognitive performance of the senior students of medicine. In addition, the positive evaluation of the students regarding the pedagogical methodology used constitutes an added value of this approach.

RESUMO

Abstract Spatial orientation is a cognitive domain frequently impaired in Alzheimer's Disease and can be one of its earliest symptoms. Objective: This paper describes the results of tolerability, sense of presence and usability of two immersive virtual reality tasks for the assessment of spatial orientation, using VR headset in adults. Methods: 31 healthy adults recruited from university and the local community performed two experimental immersive virtual reality tasks of spatial orientation: the SOIVET-Maze for the assessment of allocentric to egocentric spatial abilities and the SOIVET-Route for the assessment of spatial memory and landmark recognition. Participants completed questionnaires about sense of presence, cybersickness symptoms, technology use profile and motion sickness history. Usability measures were assessed by spontaneous feedback from participants. Results: All participants were able to understand the task instructions and how to interact with the system. Both tasks seemed to induce a strong sense of presence, as assessed by the Witmer and Singer Presence Questionnaires (M=128 and 143 for SOIVET-Maze and SOIVET-Route, respectively). The SOIVET-Route had a small numeric advantage over the SOIVET-Maze tolerability scores assessed by the Cybersickness Questionnaire (M=4.19, SD=5.576 and M=3.52, SD=6.418 for SOIVET-Maze and SOIVET-Route respectively). Also, there were no drop-outs on the SOIVET-Route due to tolerability issues, unlike the SOIVET-Maze, which had two drop-outs. However, this difference was not statistically significant (Z= -.901, p= 0.368, Wilcoxon signed-rank test).

Resumo A orientação espacial é um domínio cognitivo freqüentemente comprometido na doença de Alzheimer e pode ser um dos primeiros sintomas manifestados. Objetivo: Este artigo descreve os resultados de tolerabilidade, sensação de presença e usabilidade de duas tarefas imersivas de realidade virtual para avaliação da orientação espacial, utilizando óculos de RV em adultos. Métodos: 31 adultos saudáveis, ​​recrutados entre estudantes universitários e da comunidade local, realizaram duas tarefas de realidade virtual imersiva para avaliação da orientação espacial: A tarefa SOIVET-Maze para avaliação da capacidade de transposição da orientação alocêntrica para egocêntrica e a tarefa SOIVET-Route para avaliação da memória espacial e reconhecimento de pontos de referência. Os participantes também responderam questionários sobre Sensação de Presença, Sintomas de cybersickness, Perfil de Uso de Tecnologia e Histórico de cinetose. Feedback espontâneo dos participantes foi utilizado como medida de usabilidade. Resultados: Todos os participantes conseguiram compreender as instruções da tarefa e como interagir com o sistema. Ambas tarefas parecem induzir forte sensação de presença, avaliada pelo Questionário de Presença de Witmer e Singer (M=128 e 143 para SOIVET-Maze e SOIVET-Route, respectivamente). A tarefa SOIVET-Route teve uma pequena vantagem numérica em relação à tarefa SOIVET-Maze na pontuação de tolerabilidade avaliada pelo Questionário de Cybersickness (M=4,19, SD=5,576 e M=3,52, SD=6,418 para SOIVET-Maze e SOIVET-Route respectivamente). Além disso, não houve desistências na SOIVET-Route devido a problemas de tolerabilidade, ao contrário da SOIVET-Maze, que teve dois drop-outs. No entanto, essa diferença não foi estatisticamente significativa (Z= -901, p=0,368, teste de postos sinalizados de Wilcoxon)

Assuntos

RESUMO

RESUMEN Objetivos Identificar las relaciones entre las características de los estudiantes, su ambiente de aprendizaje, su ocupación, y los objetos virtuales para el aprendizaje autorregulado a través de la observación participante. Aspectos importantes para la formación de profesionales de la salud. Métodos Estudio cualitativo aplicado a estudiantes que participaron en la asignatura Educación y Terapia Ocupacional. Se emplearon dos herramientas: Cuestionario Objetos Virtuales para el aprendizaje en el campo educativo y Observación participante. Al primer instrumento se le realizó pilotaje y revisión por experto. Resultados El estudio dio cuenta de datos demográficos y antecedentes de educación media similares, con relación a: procedencia, acceso al computador y exclusividad para estudiar; así como desarrollo de estudios de educación media en Bogotá y en instituciones privadas. En los ambientes de aprendizaje hay una tendencia a evidenciar que están de acuerdo con el programa de la asignatura: en cumplimiento de objetivos explícitos escogidos para el estudio en un 75 % e implícitos en un 60 %. En la ocupación, se encontró que el objeto virtual permitió profundizar sobre el tema que desarrollaron los estudiantes y poner en práctica conocimientos previos sobre tecnologías de la información y la comunicación. La observación participante arrojó particularidades en los elementos motivación, eficacia y aprendizaje autorregulado. Conclusiones La implementación de los Objetos Virtuales de Aprendizaje favorece en los estudiantes la motivación, el aprendizaje autorregulado y la apropiación de conceptos y conocimientos relacionados con la asignatura; por lo que se propone como estrategia de aprendizaje.(AU)

ABSTRACT Objective To identify the relationship between the characteristics of students, their learning environment, their occupation, and the virtual objects for self-regulated learning. In addition, to establish connections with participant's observation. Important aspects for the training of health professionals. Methods A qualitative study was applied to students who participated in the Education and Occupational Therapy subject. Two tools were used: virtual Objects Questionnaire for the educational field learning and Participant Observation. The first instrument was piloted and reviewed by experts. Results The study reported similar demographic data and background of similar education in relation to: origin, access to the computer and exclusivity to study; as well as the development of secondary education studies in Bogotá and in private institutions. In the learning environments, there is a tendency to show that they agree with the program of the subject in fulfillment of explicit objectives chosen for the study in 75 % and implicit in 60 %. With regards to the occupation, it was found that the virtual object allowed to deepen on the subject that the students developed and put into practice previous knowledge on communication technologies. The Participant Observation tool found particularities in the elements of motivation, efficacy and self-regulated learning. Conclusions The implementation of the Virtual Learning Objects favor the students' motivation, self-regulated learning and their appropriation of concepts and knowledge related to the subject; therefore, it is proposed as a learning strategy.(AU)

Assuntos

RESUMO

Abstract Objectives This study shows the development and validation of a dental anesthesia-training simulator, specifically for the inferior alveolar nerve block (IANB). The system developed provides the tactile sensation of inserting a real needle in a human patient, using Virtual Reality (VR) techniques and a haptic device that can provide a perceived force feedback in the needle insertion task during the anesthesia procedure. Material and Methods To simulate a realistic anesthesia procedure, a Carpule syringe was coupled to a haptic device. The Volere method was used to elicit requirements from users in the Dentistry area; Repeated Measures Two-Way ANOVA (Analysis of Variance), Tukey post-hoc test and averages for the results' analysis. A questionnaire-based subjective evaluation method was applied to collect information about the simulator, and 26 people participated in the experiments (12 beginners, 12 at intermediate level, and 2 experts). The questionnaire included profile, preferences (number of viewpoints, texture of the objects, and haptic device handler), as well as visual (appearance, scale, and position of objects) and haptic aspects (motion space, tactile sensation, and motion reproduction). Results The visual aspect was considered appropriate and the haptic feedback must be improved, which the users can do by calibrating the virtual tissues' resistance. The evaluation of visual aspects was influenced by the participants' experience, according to ANOVA test (F=15.6, p=0.0002, with p<0.01). The user preferences were the simulator with two viewpoints, objects with texture based on images and the device with a syringe coupled to it. Conclusion The simulation was considered thoroughly satisfactory for the anesthesia training, considering the needle insertion task, which includes the correct insertion point and depth, as well as the perception of tissues resistances during the insertion.

Assuntos