Biomechanics

Automatic Stub Avoidance for a Powered Prosthetic Leg over Stairs and Obstacles

Automatic Stub Avoidance for a Powered Prosthetic Leg over Stairs and Obstacles
Automatic Stub Avoidance for a Powered Prosthetic Leg over Stairs and Obstacles 1805 1201 IEEE Transactions on Biomedical Engineering (TBME)
The paper utilizes environmental information from an ultrasonic sensor to reduce the risk of powered prosthetic leg stubbing on obstacles and stairs, improving safety without compensations from the users. read more
Designing Custom Mechanics in Running-Specific Prosthetic Feet via Shape Optimization

Designing Custom Mechanics in Running-Specific Prosthetic Feet via Shape Optimization
Designing Custom Mechanics in Running-Specific Prosthetic Feet via Shape Optimization 789 444 IEEE Transactions on Biomedical Engineering (TBME)
We employ a custom shape optimization to generate prosthetic running foot geometries given desired endpoint mechanics, and test how three new foot designs affect knee kinetics in an amputee athlete read more

Fit to Burst: Toward Noninvasive Estimation of Achilles Tendon Load Using Burst Vibrations
Author(s)3: Nicholas B. Bolus, Hyeon Ki Jeong, Bradley M. Blaho, Mohsen Safaei, Aaron J. Young, Omer T. Inan
Fit to Burst: Toward Noninvasive Estimation of Achilles Tendon Load Using Burst Vibrations 170 177 IEEE Transactions on Biomedical Engineering (TBME)
In this study, we present a novel method of noninvasively estimating mechanical load in the Achilles tendon using burst vibrations. These vibrations, produced by a small vibration motor on the skin superficial to the tendon, are sensed by a skin-mounted accelerometer, which measures the tendon’s response to burst excitation under varying tensile load. Characteristic changes in the burst response profile as a function of tendon tension are observed and used as inputs to an ML model, which yields accurate (R2 = 0.85) estimates of ankle loading during gait. Preliminary results of a fully wearable ankle load monitor are also presented. read more

The impact of ACL laxity on a bicondylar robotic knee and implications in human joint biomechanics
Author(s)3: Felix F. W. Russell, Petar Kormushev, Ravi Vaidyanathan, Peter Ellison
The impact of ACL laxity on a bicondylar robotic knee and implications in human joint biomechanics 170 177 IEEE Transactions on Biomedical Engineering (TBME)
A robot model of the human knee provides a new way to investigate joint biomechanics. The specially designed joint has geometry copied from human bones scans and uses springs for ligaments. A knee cap (patella) and tendons transmit forces from an antagonistic pair of actuators, like in the human leg. This method overcomes many of the experimental limitations from using human tissue. The robot demonstrates the unique way in which the sliding of the joint surfaces allows the human knee mechanism to compensate when critical structures such as the anterior cruciate ligaments (ACL) are removed. read more
A New Modeling Method to Characterize the Stance Control Function of Prosthetic Knee Joints

A New Modeling Method to Characterize the Stance Control Function of Prosthetic Knee Joints
Author(s)3: Jan Andrysek, Jessica Tomasi, Matthew Leineweber, Arezoo Eshraghi
A New Modeling Method to Characterize the Stance Control Function of Prosthetic Knee Joints 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Biomechanical models can inform design and optimization of prosthetic devices by connecting empirically-derived biomechanical data to device design parameters. A new method is presented to characterize the function of prosthetic…

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Predicting Athlete Ground Reaction Forces and Moments From Spatio-temporal Driven CNN Models
Author(s)3: William R. Johnson, Jacqueline Alderson, David G. Lloyd, Ajmal Mian
Predicting Athlete Ground Reaction Forces and Moments From Spatio-temporal Driven CNN Models 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Conventional methods to generate ground reaction forces and moments (GRF/M) required for traditional inverse dynamics estimation of athlete joint forces and loads are confined to biomechanics laboratories far removed from…

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Full Body Musculoskeletal Model for Muscle-Driven Simulation of Human Gait

Full Body Musculoskeletal Model for Muscle-Driven Simulation of Human Gait
Author(s)3: Apoorva Rajagopal, Christopher L. Dembia, Matthew S. DeMers, Denny D. Delp, Jennifer L. Hicks, Scott L. Delp
Full Body Musculoskeletal Model for Muscle-Driven Simulation of Human Gait 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Rajagopal, Christopher L. Dembia, Matthew S. DeMers, Denny D. Delp, Jennifer L. Hicks, and Scott L. Delp, Stanford University Human movement involves complex interactions between the neuromuscular and skeletal systems, many…

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Novel Methods for Sensing Acoustical Emissions from the Knee for Wearable Joint Health Assessment
Author(s)3: Caitlin N. Teague, Sinan Hersek, Hakan Toreyin, Mindy L. Millard-Stafford, Michael L. Jones, Géza F. Kogler, Michael N. Sawka, Omer T. Inan
Novel Methods for Sensing Acoustical Emissions from the Knee for Wearable Joint Health Assessment 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Caitlin N. Teague, Sinan Hersek, Hakan Töreyin, Mindy L. Millard-Stafford, Michael L. Jones, Geza F. Kogler, Michael N. Sawka, and Omer T. Inan, Georgia Institute of Technology, USA The research reported…

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Simulation-Based Design for Wearable Robotic Systems: An Optimization Framework for Enhancing a Standing Long Jump
Author(s)3: Carmichael F. Ong, Jennifer L. Hicks, Scott L. Delp
Simulation-Based Design for Wearable Robotic Systems: An Optimization Framework for Enhancing a Standing Long Jump 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Wearable robotic devices offer great potential to improve human performance for various movement tasks, but the success of these devices has been limited by our insufficient understanding of the complex…

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An Open-Source Toolbox for Surrogate Modeling of Joint Contact Mechanics
Author(s)3: Ilan Eskinazi, Benjamin J. Fregly
An Open-Source Toolbox for Surrogate Modeling of Joint Contact Mechanics 170 177 IEEE Transactions on Biomedical Engineering (TBME)

Ilan Eskinazi and Benjamin J. Fregly, University of Florida, USA, Volume 63, Issue 2, Page: 269-277 Incorporation of elastic joint contact models into simulations of human movement could facilitate studying the…

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