Development of dry textile electrodes for electromiography: a comparison between knitted structures and conductive yarns

The paper presents a practical approach concerning the design, implementation and testing of dry textile electrodes for surface electromyography purposes. Several knitted structures were designed and knitted with conductive yarns, in order to compare the influence of the fabric structure in the electrode performance. The effect of the type of conductive yarn was also studied by comparing three different yarns. It was found that the textile electrodes perform well for sEMG acquisition, with a clear depiction of the muscle activity produced. There are significant differences between the structures tested and there is also some influence from the yarn used.This work is supported by Portuguese National Funding, through FCT - Fundação para a Ciência e a Tecnologia, in the framework of project EHRPhysio PTDC/DTP-DES/1661/2012 and project UID/CTM/00264/2013

Gait Rehabilitation Monitor

This paper presents a simple wearable, non-intrusive affordable mobile framework that allows remote patient monitoring during gait rehabilitation by doctors and physiotherapists. The system includes a set of 2 Shimmer3 9DoF Inertial Measurement Units (IMUs), an Android smartphone and a developed app for collecting, primary processing of data and for persistence of data in a remote PostgreSQL database, which is available in a remote server and where further data processing is performed. This framework provides gait features classifier by invoking an implemented REST API available in the remote server. Low computational load algorithms based on Euler angles and filtered signals were developed and used for the classification and identification of several gait disturbances. These algorithms include the alignment of IMUs sensors data by means of a common temporal reference as well as heel strike and stride detection algorithms. After segmentation of the remotely collected signals for gait strides identification relevant features were extracted to feed, train and test a classifier for prediction of gait abnormalities using supervised machine learning type and Extremely Randomized Trees method.info:eu-repo/semantics/publishedVersio

Treat me well : affective and physiological feedback for wheelchair users

This work reports a electrocardiograph and skin conductivity hardware architecture, based on E-textile electrodes, attached to a wheelchair for affective and physiological computing. Appropriate conditioning circuits and a microcontroller platform that performs acquisition, primary processing, and communication using Bluetooth were designed and implemented. To increase the accuracy and repeatability of the skin conductivity measuring channel, force measurement sensors were attached to the system certifying measuring contact force on the electrode level. Advanced processing including Rwave peak detector, adaptive filtering and autonomic nervous system analysis based on wavelets transform was designed and implemented on a server. A central design of affective recognition and biofeedback system is described.Fundação para a Ciência e a Tecnologia (FCT

WSN Gait Monitoring for Objective Evaluation of Rehabilitation Process

Trabalho apresentado no International Conference on Electronic Measurement and Instruments (ICEMI'2015), Julho 2015, Qingdao, ChinaA survey of wireless sensor network solutions for gait assessment is presented including own developed solution gait assessment based on smart insoles nodes ZigBee compatible characterized by multichannel force measurement and MEMS inertial measurement IMU. The system was developed to measure ground reaction force, acceleration and direction of feet in order to provide information to physiotherapists for an objective evaluation of rehabilitation effectiveness. Based on acquired data from the sensing channels a set of gait feature extraction such as walking speed stride length, swing time are calculated as part of gait analysis. Software for WSN node control, gait feature calculation and primary analysis of rehabilitation effectiveness developed for the physiotherapist was designed and implemented and preliminary tests were carried out for normal and simulated anomalous gait.info:eu-repo/semantics/publishedVersio

IoT based model of healthcare for physiotherapy

Trabalho apresentado em 13th International Conference on Sensing Technology (ICST 2019), dezembro 2019, Sydney, Austrália.Small and reliable devices that are used not only in clinics or hospital but also in home, give information on movements, activities or other relevant data on person health and functioning. The data acquired by these devices would increase the accessibility to healthcare services and quality of care, in a safe environment. There are scarce data related to integration of Internet of Things (IoT) technologies into information system for physiotherapy or motor rehabilitation. In this work it is presented a framework for IoT based information system for physiotherapy. The presented model for physiotherapy includes: the capacity of IoT based information system to receive inputs from different modalities; support for modularity and common communication technologies for IoT; gateway capabilities and/or edge computing; data storage and analysis in Server, Cloud Server or Microservices. Research is needed for better understanding what is the optimal model and architecture for IoT platforms targeting people with different types of disabilities, as well as an optimal universal design that may increase the quality of care for people with disability.info:eu-repo/semantics/publishedVersio

Projeto RSE fisio registo de saúde eletrónico: necessidades, requisitos e barreiras de adoção em fisioterapia

A pessoa idosa deverá ser responsável pela prevenção da saúde, vigilância e medicalização mas também pela adoção de comportamentos saudáveis, alimentar-se, prática de atividade física e participar em atividades de lazer, numa clara correlação entre o imediato e o futuro. O grupo de pessoas mais velhas, com 60 e mais anos, continuará a aumentar exponencialmente nos anos vindouros. Portugal - 19% população idosa (Censo de 2011). Três pilares de envelhecimento ativo: Saúde e qualidade de vida; Segurança; Participação. A participação, os idosos e a tecnologia raramente aparecem interligados. Teleassistência aos idosos: contactos audiovisuais e em tempo real entre pacientes e cuidadores; tecnologias integradas sob a forma de casas inteligentes; roupa e mobiliário inteligente; tecnologias de etiquetagem/alerta eletrónica; implantes e dispositivos para monitorização de doenças crónicas

Smart Walker Solutions for Physical Rehabilitation

info:eu-repo/semantics/publishedVersio

Smart clothes for rehabilitation context: technical and technological issues

Smart clothes have the potential to improve rehabilitation processes by allowing clinicians to gather measures on patients’ functional capacity, activity level, exercise compliance, the effectiveness of treatment, and the ability of patients to perform efficiently specific motor tasks at rehabilitation centers, at home or in community settings. The chapter provides an overview of smart clothing for health monitoring and healthcare, mainly for rehabilitation context. We present recent advances in the field of researches related smart clothes with capability of human body vital functions (i.e. heart beats, respiration) and activity monitoring, as well as several commercial smart clothes for rehabilitation context. Technical and technological issues related smart clothes design and development, and several directions for future research are also presented. Manufacturability, connectivity, integrations of things for smart clothing, durability, testing, wearability, maintainability and affordability of smart clothes are discussed.The work was supported by Fundação para a Ciência e Tecnologia project: TailorPhy - Smart Sensors and Tailored Environments for Physiotherapy PTDC/DTP-DES/6776/2014, by Instituto de Telecomunicações, and FEDER funds through the Competitivity Factors Operational Programme - COMPETE and by national funds through FCT-Foundation for Science and Technology within the scope of the project POCI-01-0145-FEDER-007136.info:eu-repo/semantics/publishedVersio

Convergence Analysis for a Three-Step Thakur Iteration for Suzuki-Type Nonexpansive Mappings with Visualization

The class of Suzuki mappings is reanalyzed in connection with a three-steps Thakur procedure. The setting is provided by a uniformly convex Banach space, that is normed space endowed with some symmetric geometric properties and some topological properties. Once more, the fact that property ( C ) holds on as a generalized nonexpansiveness condition is emphasized throughout some examples. One example uses the setting of R 2 with the Taxicab norm. It is further included in a numerical experiment in connection with seven iteration procedures, resulting a visual analysis of convergence