A5043376371- Robotic Locomotion and Control
- Prosthetics and Rehabilitation Robotics
- Muscle activation and electromyography studies
- Robot Manipulation and Learning
- Gait Recognition and Analysis
- Hydraulic and Pneumatic Systems
- Soil Mechanics and Vehicle Dynamics
- Hand Gesture Recognition Systems
- Balance, Gait, and Falls Prevention
- Human Pose and Action Recognition
- Stroke Rehabilitation and Recovery
- Diabetic Foot Ulcer Assessment and Management
- Context-Aware Activity Recognition Systems
- Control and Dynamics of Mobile Robots
- Employment and Welfare Studies
- COVID-19 and healthcare impacts
- Structural Health Monitoring Techniques
- Machine Learning and ELM
- Teaching and Learning Programming
- Healthcare Policy and Management
- Health disparities and outcomes
- Global Health Care Issues
- Smart Materials for Construction
- Venous Thromboembolism Diagnosis and Management
- Teleoperation and Haptic Systems
Institute for Systems Engineering and Computers
2009-2025
University of Coimbra
2010-2025
Polytechnic Institute of Coimbra
2007-2025
University of Arizona
2022-2024
Escola Superior de Tecnologia da Saúde de Coimbra
2018-2024
Keele University
2024
Banner - University Medical Center Tucson
2023
Estrutura de Missão para a Extensão da Plataforma Continental
2020
Institute of Engineering
2010
Robotics Research (United States)
2004
Human-assisting intelligent systems demand certain methods to precisely predict motorized limb joint angles. This paper presents the application of deep-recurrent neural networks (RNNs), which is a type network for processing sequential data, predicting knee angle in real-time. model created based on combination electromyographic (EMG) signals, (with electrodes being placed three leg muscles), and inertial measurements upper lower legs. The data collected from different subjects when they...
This paper analyzes human motion, more specifically the gait in sagittal plane. A video camera is used to acquire images of a walking person, fitted with set white light-emitting diodes (LEDs). The acquired trajectories light points are then specify joint biped robot. To analyze stability gait, system was also developed center pressure (CoP). uses eight force sensors, four under each foot. influence torso angle on CoP position during confirmed. Some experiments were carried out robot, and...
This paper presents a method for position correction in collaborative robots, applied to case study an industrial environment. The is aligned with the GreenAuto project and aims optimize processes through integration of various hardware elements. focuses on tightening specific number nuts onto bolts located partition plate, referred as “Cloison”, which mounted commercial vans produced by Stellantis, secure plate. main challenge lies deviations that may occur plate during its assembly...
Medicare beneficiaries' healthcare spending varies across geographical regions, influenced by availability of medical resources and institutional efficiency. We aimed to evaluate whether social vulnerability influences costs among beneficiaries. Multivariable regression analyses were conducted determine the index (SVI), released Centers for Disease Control Prevention (CDC), was associated with average submitted covered charges, total payment amounts, or days upon hospital discharge used...
The autonomous navigation of unmanned ground vehicles (UGVs) in unstructured environments, such as agricultural or forestry settings, has been the subject extensive research by various investigators. capability a UGV environments requires considering numerous factors, including quality data reception that allows reliable interpretation what perceives given environment, well use these to control UGV’s navigation. This article aims study different PID algorithms enable on robotic platform....
The real-time balance control of an eight-link biped robot using a zero moment point (ZMP) dynamic model is difficult due to the processing time corresponding equations. To overcome this limitation, two alternative intelligent computing techniques were compared: one based on support vector regression (SVR) and another first-order Takagi-Sugeno-Kang (TSK)-type neural-fuzzy (NF) network. Both methods use ZMP error its variation as inputs output correction robot's torso necessary for sagittal...
As the aging of population aggravates, problem fall has aroused more attention. We have proposed a novel pre-impact detection algorithm and protection system. The real-time used thresholds vertical velocity displacement profile to detect events in switching periods fast motion. It can effectively solve false alarms jump jogging for daily-life applications. A second-order lag filtering method was utilized reduce drift with good performance. In addition, calculated by using estimation. got...
Background Healthcare coverage has been shown to have implications in the prevalence of coronary artery disease. We explore impact lack healthcare on ischemic heart disease (IHD) mortality US. Methods obtained county-level IHD and data from CDC databases for a total 3,119 US counties. The age-adjusted current health insurance among individuals aged 18 64 years were 2018 2019 placed into four quartiles. First (Q1) fourth quartile (Q4) had least highest adults without insurance, respectively....
This paper describes the control of an autonomous biped robot that uses Support Vector Regression (SVR) method for its longitudinal balance. SVR Zero Moment Point (ZMP) position and variation as input correction robot's body is obtained output. The was trained based on simulation data confirmed with real robot. showed to be faster (with similar accuracy) than a recurrent network or neuro-fuzzy
This paper describes the control of an autonomous biped robot that uses support vector regression (SVR) method for its sagittal balance. SVR zero moment point (ZMP) position and variation as input torso correction robot's body output. As model used segments into eight parts, it is difficult to use online. main reason using artificial intelligence method. The was trained with simulation data previously tested real robot. found be faster (with similar accuracy) than a recurrent network...
The real-time balance control of an eight link biped robot using a zero moment point (ZMP) dynamic model is difficult due to the processing time corresponding equations. To overcome this limitation, intelligent computing technique used. This based on support vector regression (SVR). method uses ZMP error and its variation as inputs, output correction robot's torso necessary for sagittal balance. SVR trained simulation data their performance verified with real robot. calculated by reading...
With this work, it is intended to do the tracking and analysis of human motion, more specifically gait. By using computational vision, has been acquired trajectories defined control points in individuals' body, throughout time space. These results are be used afterwards gait specification biped robots. Several types movement phases that compose a common system capture referenced. Then, methods image processing description existing detailed. Finally, implemented software presented analyzed.
The purpose of this study was to develop two new gait indices - the Normal Gait Index (NGI) and Abnormal (AGI) that include a symmetry measurement, conclude about recovery degree patients subjected reconstruction anterior cruciate ligament (ACL). This methodology comprises use computational intelligence technique generate each patient's specific reference vertical ground reaction forces (VGRF). Data from ACL reconstructed walking at five different speeds were collected using instrumented...
The trajectory of several cardiovascular diseases (CVD), including acute myocardial infarction (AMI), has been adversely impacted by COVID-19, resulting in a worse prognosis. Social Vulnerability Index (SVI) found to affect certain CVD outcomes. In this cross-sectional analysis, we investigated the association between SVI and comorbid COVID-19 AMI mortality using CDC databases. percentile rankings were divided into four quartiles, age-adjusted rates compared lowest highest quartiles....
There has been an increase in implantation of cardiac implantable electronic devices (CIEDs) recent years. The incidence adverse events associated with these procedures are expected to increase. implications developments particularly concerning rural areas the United States (US), where public health challenges frequent and access specialized medical providers is limited [1Cyr M.E. et al.Access specialty healthcare urban versus US populations: a systematic literature review.BMC Health Serv...
This paper introduces two new important issues to be considered in the design of zero moment point (ZMP) trajectory reference for sagittal plane balance control an autonomous walking biped robot with human-like gait.
Gait recognition and rehabilitation has been a research hotspot in recent years due to its importance medical care elderly care. Active intelligent assistance systems for lower limbs integrates mechanical design, sensing technology, control, robotics is one of the effective ways resolve above problems. In this review, crucial technologies typical prototypes active gait training are introduced. The limitations, challenges, future directions terms measurement intention recognition, evaluation,...