Davide Piovesan

Gannon University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Antonio Cárdenas

Centro Andaluz de Biología Molecular y Medicina Regenerativa

Xiaoxu Ji

Gannon University

Mauro Maya

Universidad Michoacana de San Nicolás de Hidalgo

Alejandro González

Tecnológico de Monterrey

Roberto Bortoletto

Policlinico Abano Terme

Anne Schmitz

University of Wisconsin–Stout

Ferdinando A. Mussa-Ivaldi

Northwestern University

Xiaoxu Ji

Gannon University

Scott Steinbrink

Gannon University

Gary Vanderlaan

Gannon University

Cooperative Institutions

Gannon University

109

Autonomous University of San Luis Potosí

Northwestern University

Shirley Ryan AbilityLab

University of Padua

Bridge University

Western University

University of Genoa

Polytechnic University of San Luis Potosí

Emory University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Viscoelastic properties of the ankle during quiet standing via raster images and EKF

Raul Chavez Romero Antonio Cárdenas Davide Piovesan

The present study deals with the reconstruction of the continuous-time state space parameters proper of human quiet standing. The reconstruction utilized a hybrid non-linear extended Kalman filter to combine a biomechanical model with the discrete-time position measurements provided by two web-cameras via a General Linear Camera model. After camera calibration and validating the filter in simulation, we performed the estimation on a group of volunteers whose quiet standing was perturbed by means of a hold and release paradigm. The filter allowed estimating stiffness and damping of the ankle during quiet standing as well as the kinematic variables of the subjects' center of mass.

QUIET

Position (finance)

10.1109/spmb.2014.7002973

Cite

Citations (6)

Combining Gait Trainers and Partial Weight Bearing Lifters: A Dynamic Analysis of Seat-to-Stand Transition

Davide Piovesan Michael Yagiela Richard W. Johnson Anne Schmitz

We analyzed a new class of passive devices that can help individuals regain their independence. A new walker design has been commercialized under the name of UP’N FREE®1. This new design can lift the user from a seated posture to a standing position through the employment of a four bar mechanism and gas piston. When the user is standing, the mechanism can provide partial compensation from gravity to help the user regain mobility. By using this system, users can sit and stand without another person’s assistance and can also compensate for gravity loads during walking both indoor and outdoor. This paper illustrates two examples of how to implement the dynamic lifting support and discusses the pros and cons of different system configuratons of a a gas spring cylinder as a passive actuator.

Lift (data mining)

10.1115/dscc2016-9731

Cite

Citations (2)

Body Armor - Current and Potential Materials

Nishant Thakkar Davide Piovesan Scott Steinbrink

Abstract Military forces have faced the ballistic threat in many forms for hundreds of years, ranging from spears to bomb fragmentation. Soldiers have historically worn body armor to protect themselves on the battlefield. The goal of modern lightweight body armor development has always been to develop lighter and stronger materials so that performance can be improved while reducing weight and making the mobility of the personnel easy. Body armor ballistic testing follows strict guidelines provided by the National Institute of Justice (NIJ) in the United States of America. According to the new testing standards, innovative products are being released. This review elaborates on various materials and composites that are being used in the making of body armor that eventually help eliminate the threats from high-velocity bullets, shell fragments, and knives. In this paper, the science of body armor materials is quickly reviewed with emphasis on current knowledge of relevant energy-absorbing mechanisms in fibers, fabrics, polymeric laminates, and ceramics. The drive to create lightweight and comfortable armor systems for military personnel has led to the development of various composite materials. The paper reviews the major features of materials used in body armor and focuses on the development of intriguing new potential materials.

Armour

Battlefield

10.1115/imece2022-96207

Cite

Citations (0)

Arm Stiffness During Assisted Movement After Stroke: The Influence of Visual Feedback and Training

IEEE Transactions on Neural Systems and Rehabilitation Engineering (2012)

Davide Piovesan Pietro Morasso Psiche Giannoni Maura Casadio

Spasticity and muscular hypertonus are frequently found in stroke survivors and may have a significant effect on functional impairment. These abnormal neuro-muscular properties, which are quantifiable by the net impedance of the hand, have a direct consequence on arm mechanics and are likely to produce anomalous motor paths. Literature studies quantifying limb impedance in stroke survivors have focused on multijoint static tasks and single joint movements. Despite this research, little is known about the role of sensory motor integration in post-stroke impedance modulation. The present study elucidates this role by integrating an evaluation of arm impedance into a robotically mediated therapy protocol. Our analysis had three specific objectives: 1) obtaining a reliable measure for the mechanical proprieties of the upper limb during robotic therapy; 2) investigating the effects of robot-assisted training and visual feedback on arm stiffness and viscosity; 3) determining if the stiffness measure and its relationship with either training or visual feedback depend on arm position, speed, and level of assistance. This work demonstrates that the performance improvements produced by minimally assistive robot training are associated with decreased viscosity and stiffness in stroke survivors' paretic arm and that these mechanical impedance components are partially modulated by visual feedback.

Stroke

Mechanical impedance

Motor Learning

10.1109/tnsre.2012.2226915

Cite

Citations (37)

Time-based identification of human ankle impedance via Microsoft Kinect

Mauricio E. Segura Enrique Coronado Antonio Cárdenas Davide Piovesan

This paper presents an affordable platform to estimate human ankle mechanical impedance. This platform uses Microsoft Kinect version 2 as the motion capture system of choice and a hybrid algorithm to estimate the biomechanical parameters. The algorithm is based on the combination of an Extended Kalman filter and a Genetic Algorithms. The information provided by Kinect together with the ankle biomechanical parameters can be utilized to estimate the dynamic behavior of the recovery from falls. To prove the precision of the 3D measurements obtained with Kinect a comparison with a visual system, based on two industrial cameras was performed. Both systems were calibrated tracking the end-effector position of an industrial robot. The hold and release (H&R) experimental paradigm was used to estimate the ankle mechanics on seven subjects. The results show that Kinect v2 is a reliable motion capture device to study the neuro-mechanical response of recovering from falling.

Motion Capture

Identification

Position (finance)

Tracking (education)

10.1109/spmb.2015.7405424

Cite

Citations (5)

Vision-based Control of a Delta Parallel Robot via Linear Camera-Space Manipulation

Journal of Intelligent & Robotic Systems (2016)

Enrique Coronado Mauro Maya Antonio Cárdenas Orlando Guarneros García Davide Piovesan

Robustness

Robot calibration

10.1007/s10846-016-0413-5

Cite

Citations (26)

Simulation of a Terrain Versatile Walker-Wheelchair With Torso Support

James Manzer Gabriel Simon Sosa Davide Piovesan

Abstract Much of the population have mobility disabilities. A market analysis highlighted the lack of a low-cost mobility solution that could provide terrain versatility, torso support, combined wheelchair functionality, and sit-to-stand assistance. Furthermore, the use of common, readily available parts for device life maintenance is advantageous for the intended use in rural areas. This study describes a design for a mobility solution. A simulation and analysis are performed using multi-body software to determine the interaction between the vehicle on different types of obstacles, as well as determine forces in the riskiest parts of the design for connection strength analysis. To complete this simulation, several determinations had to be obtained to use proper constraints for the system, such as the force the caregiver would push with and the damping of the tires. A physical test is performed to find the average force required to push a wheelchair and patient over outdoor, bumpy terrain. This study makes multiple suggestions for mobility device design that contrast with trending design priorities in the medical device industry and provides evidence for these recommendations. The results of the created simulations are used to make design choices regarding wheel configuration and size.

Torso

10.1115/imece2021-73245

Cite

Citations (0)

Reducing Vibrations Experienced by an Infant During Air Transportation

Proceedings of the Vertical Flight Society 78th Annual Forum (2024)

Sophia Piatt Xiaoxu Ji Alexander Deemer Sarah J. Young Hilcia Merlos

Some infants are born prematurely or with medical conditions that require them to stay in neonatal intensive care units (NICUs). Typically, these infants spend most of their time in an incubator as it provides a safe and controlled environment. At times, these infants will need to be transported via helicopter from one hospital to another, which exposes their already fragile bodies to higher levels of vibration. Helicopters, while advantageous for medical transport, generate substantial vibration due to rotor dynamics. Current models of incubators lack specific design for reducing vibrations. This project proposes a functional vibration damper that can be integrated into existing neonatal incubators, aiming to enhance infant safety during air transport. ANSYS modeling identified low-density polyethylene foam as an effective material for vibration reduction. Flight simulation tests demonstrated the 2" polyethylene mattress reduced vibrations at low amplitudes and frequencies, but challenges arose at higher values. The prototype addresses the critical need for reducing vibrations in neonatal incubators during air transport. While successful in initial tests, further extensive testing is required for potential implementation in the medical industry.

10.4050/f-0080-2024-1044

Cite

Citations (0)

Exploring injury assessment using motion tracking technology and ergonomic tools in archery performance

Frontiers in Medical Engineering (2024)

Xiaoxu Ji Irati Arzalluz Xin Gao Zainab Al Tamimi Ethan Swierski

Introduction: Archers face a notable annual risk of injury attributed to the repetitive strain exerted on their upper body muscles and joints. This groundbreaking study marks the first utilization of real-time motion tracking combined with ergonomic analysis in archery research, eliminating the need for extensive equipment setups and streamlining data collection. Methods: Thirteen participants were involved, undertaking four tasks with varying draw weights of bows and target positions. Results: The precise recording of human movements revealed distinctive postures adopted by both genders across different tasks. Furthermore, an assessment of exposed spinal force and its correlation with anatomical variables was conducted, providing valuable insights into injury risks during archery performances.

Tracking (education)

Match moving

Motion Capture

10.3389/fmede.2024.1375520

Cite

Citations (0)

Vibrations of Fractal Structures: On the Nonlinearities of Damping by Branching

Journal of Nanotechnology in Engineering and Medicine (2015)

Peter Torab Davide Piovesan

To study the effect of damping due to branching in trees and fractal structures, a harmonic analysis was performed on a finite element model using commercially available software. The model represented a three-dimensional (3D) fractal treelike structure, with properties based on oak wood and with several branch configurations. As branches were added to the model using a recursive algorithm, the effects of damping due to branching became apparent: the first natural frequency amplitude decreased, the first peak widened, and the natural frequency decreased, whereas higher frequency oscillations remained mostly unaltered. To explain this nonlinear effect observable in the spectra of branched structures, an analytical interpretation of the damping was proposed. The analytical model pointed out the dependency of Cartesian damping from the Coriolis forces and their derivative with respect to the angular velocity of each branch. The results provide some insight on the control of chaotic systems. Adding branches can be an effective way to dampen slender structures but is most effective for large deformation of the structure.

Branching (polymer chemistry)

Natural frequency

Thermoelastic damping

10.1115/1.4032224

Cite

Citations (4)