Listar Grupos de investigación por autor "Cuadrado, Javier"
Mostrando ítems 1-20 de 20
-
A collaborative benchmarking framework for multibody system dynamics
González Varela, Francisco Javier; González Castro, Manuel Jesús; Cuadrado, Javier; Luaces, Alberto (Springer, 2009)[Abstract] Despite the importance given to the computational efficiency of multibody system (MBS) simulation tools, there is a lack of standard benchmarks to measure the performance of these kinds of numerical simulations. ... -
A Fair and EMG‑Validated Comparison of Recruitment Criteria, Musculotendon Models and Muscle Coordination Strategies, for the Inverse‑Dynamics Based Optimization of Muscle Forces During Gait
Michaud, Florian; Lamas, Mario; Lugrís-Armesto, Urbano; Cuadrado, Javier (BioMed Central Ltd., 2021-01)[Abstract] Experimental studies and EMG collections suggest that a specific strategy of muscle coordination is chosen by the central nervous system to perform a given motor task. A popular mathematical approach for solving ... -
Applying a muscle fatigue model when optimizing load-sharing between muscles for short-duration high-intensity exercise: A preliminary study
Michaud, Florian; Frey-Law, Laura A.; Lugrís-Armesto, Urbano; Cuadrado, Lucía; Figueroa-Rodríguez, Jesús; Cuadrado, Javier (Frontiers, 2023-04)[Abstract] Introduction: Multiple different mathematical models have been developed to represent muscle force, to represent multiple muscles in the musculoskeletal system, and to represent muscle fatigue. However, incorporating ... -
Assessment of Linearization Approaches for Multibodydynamics Formulations
González Varela, Francisco Javier; Masarati, Pierangelo; Cuadrado, Javier; Naya, Miguel A. (2017-07)[Abstract] Formulating the dynamics equations of a mechanical system following a multibody dynamics approach often leads to a set of highly nonlinear Differential Algebraic Equations (DAEs). While this form of the equations ... -
Assessment of Methods for the Real-Time Simulation of Electronic and Thermal Circuits
Rodríguez, Borja; Cuadrado, Javier; González Varela, Francisco Javier; Naya, Miguel A. (MDPI, 2020-03)[Abstract] Time–domain simulation of electronic and thermal circuits is required by a large array of applications, such as the design and optimization of electric vehicle powertrain components. While efficient execution ... -
Behaviour of Augmented Lagrangian and Hamiltonian Methods for Multibody Dynamics in the Proximity of Singular Configurations
González Varela, Francisco Javier; Dopico, Daniel; Pastorino, Roland; Cuadrado, Javier (2016-04)[Abstract] Augmented Lagrangian methods represent an efficient way to carry out the forward-dynamics simulation of mechanical systems. These algorithms introduce the constraint forces in the dynamic equations of the system ... -
Comparison of Several Muscle Modeling Alternatives for Computationally Intensive Algorithms in Human Motion Dynamics
Lamas, Mario; Mouzo, Francisco; Michaud, Florian; Lugrís-Armesto, Urbano; Cuadrado, Javier (Springer, 2022-04-05)[Abstract] Several approaches are currently employed to address the predictive simulation of human motion, having in common their high computational demand. Muscle modeling seems to be an essential ingredient to provide ... -
Determination of the 3D Human Spine Posture from Wearable Inertial Sensors and a Multibody Model of the Spine
Michaud, Florian; Lugrís-Armesto, Urbano; Cuadrado, Javier (MDPI, 2022)[Abstract] Determination of spine posture is of great interest for the effective prevention, evaluation, treatment and evolution monitoring of spinal disorders. Limitations of traditional imaging systems, including cost, ... -
Do Muscle Synergies Improve Optimization Prediction of Muscle Activations During Gait?
Michaud, Florian; Shourijeh, Mohammad S.; Fregly, Benjamin J.; Cuadrado, Javier (Frontiers Media S. A., 2020-07)[Abstract] Determination of muscle forces during motion can help to understand motor control, assess pathological movement, diagnose neuromuscular disorders, or estimate joint loads. Difficulty of in vivo measurement made ... -
Editorial of Special Issue Combining Sensors and Multibody Models for Applications in Vehicles, Machines, Robots and Humans
Cuadrado, Javier; Naya, Miguel A. (MDPI, 2021-09)[Abstract] The combination of physical sensors and computational models to provide additional information about system states, inputs and/or parameters, in what is known as virtual sensing, is becoming more and more popular ... -
Energy Expenditure Estimation During Crutch-Orthosis-Assisted Gait of a Spinal-Cord-Injured Subject
Michaud, Florian; Mouzo, Francisco; Lugrís-Armesto, Urbano; Cuadrado, Javier (Frontiers Media SA, 2019)[Abstract] Determination of muscle energy expenditure by computer modeling and analysis is of great interest to estimate the whole body energy consumption, while avoiding the complex character of in vivo experimental ... -
Four-compartment muscle fatigue model to predict metabolic inhibition and long-lasting nonmetabolic components
Michaud, Florian; Beron, Santiago; Lugrís-Armesto, Urbano; Cuadrado, Javier (Lausanne Frontiers Media S.A., 2024-03-11)[Abstract] Computational muscle force models aim to mathematically represent the mechanics of movement and the factors influencing force generation. These tools allow the prediction of the nonlinear and task-related muscle ... -
Human motion capture, reconstruction, and musculoskeletal analysis in real time
Lugrís-Armesto, Urbano; Pérez Soto, Manuel; Michaud, Florian; Cuadrado, Javier (Springer, 2023-10-06)[Abstract] Optical motion capture is an essential tool for the study and analysis of human movement. Currently, most manufacturers of motion-capture systems provide software applications for reconstructing the movement in ... -
Index-3 divide-and-conquer algorithm for efficient multibody system dynamics simulations: theory and parallel implementation
Malczyk, Paweł; Frączek, Janusz; González Varela, Francisco Javier; Cuadrado, Javier (Springer, 2019)[Abstract] There has been a growing attention to efficient simulations of multibody systems, which is apparently seen in many areas of computer-aided engineering and design both in academia and in industry. The need for ... -
Kalman filters based on multibody models: linking simulation and real world. A comprehensive review
Naya, Miguel A.; Sanjurjo, Emilio; Rodríguez, Antonio J.; Cuadrado, Javier (Springer, 2023-03-20)[Abstract] The Kalman filter algorithm estimates variables of linear systems combining information from real sensors and a mathematical model of the system. It may be applied to observe nonlinear systems by means of a ... -
Lower Back Injury Prevention and Sensitization of Hip Hinge with Neutral Spine Using Wearable Sensors during Lifting Exercises
Michaud, Florian; Pérez Soto, Manuel; Lugrís-Armesto, Urbano; Cuadrado, Javier (MDPI, 2021-08)[Abstract] The popularization and industrialization of fitness over the past decade, with the rise of big box gyms and group classes, has reduced the quality of the basic formation and assessment of practitioners, which ... -
Skeletal-level control-based forward dynamic analysis of acquired healthy and assisted gait motion
Mouzo, Francisco; Lugrís-Armesto, Urbano; Pàmies-Vilà, Rosa; Cuadrado, Javier (Springer, 2018-07-09)[Abstract] Gait analysis is commonly addressed through inverse dynamics. However, forward dynamics can be advantageous when descending to muscular level, as it allows that activation and contraction equations are integrated ... -
State estimator based on an indirect Kalman filter for a hydraulically actuated multibody system
Jaiswal, Suraj; Sanjurjo, Emilio; Cuadrado, Javier; Sopanen, Jussi; Mikkola, Aki (Springer, 2022-02-22)[Abstract] In multibody system dynamics, the equations of motion are often coupled with systems of other physical nature, such as hydraulics. To infer the real dynamical state of such a coupled multibody system at any ... -
The use of wearable inertial sensors and workplace-based exercises to reduce lateral epicondylitis in the workstation of a textile logistics center
Florian, Michaud; Pazos, Roberto; Lugrís-Armesto, Urbano; Cuadrado, Javier (MDPI, 2023-05-27)[Abstract]: People whose jobs involve repetitive motions of the wrist and forearm can suffer from lateral epicondylitis, which is a significant burden on both the individual and the employer due to treatment costs, reduced ... -
Using Accelerometer Data to Tune the Parameters of an Extended Kalman Filter for Optical Motion Capture: Preliminary Application to Gait Analysis
Cuadrado, Javier; Michaud, Florian; Lugrís-Armesto, Urbano; Pérez Soto, Manuel (MDPI, 2021-02)[Abstract] Optical motion capture is currently the most popular method for acquiring motion data in biomechanical applications. However, it presents a number of problems that make the process difficult and inefficient, ...