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Richard R. Neptune
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Journal Articles

Influence of Walking Over Unexpected Uneven Terrain on Joint Loading for Individuals With Transtibial Amputation

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Kristen M. Stewart, Glenn K. Klute, Richard R. Neptune
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. August 2024, 146(8): 081009.
Paper No: BIO-23-1289
https://doi.org/10.1115/1.4065045
Published Online: April 8, 2024
View Articletitled, Influence of Walking Over Unexpected Uneven Terrain on Joint Loading for Individuals With Transtibial Amputation
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Topics: Knee, Simulation, Modeling, Prostheses, Impulse (Physics), Simulation results, Wounds, Risk
Journal Articles

Differences in Glenohumeral Joint Contact Forces Between Recovery Hand Patterns During Wheelchair Propulsion With and Without Shoulder Muscle Weakness: A Simulation Study

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Shelby L. Walford, Jeffery W. Rankin, Sara J. Mulroy, Richard R. Neptune
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. April 2024, 146(4): 041005.
Paper No: BIO-23-1168
https://doi.org/10.1115/1.4064590
Published Online: February 23, 2024
View Articletitled, Differences in Glenohumeral Joint Contact Forces Between Recovery Hand Patterns During Wheelchair Propulsion With and Without Shoulder Muscle Weakness: A Simulation Study
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Topics: Muscle, Propulsion, Simulation, Impulse (Physics), Kinematics, Engineering simulation, Wounds, Wheelchairs
Journal Articles

Development of a Novel Perturbation Platform System for Balance Response Testing and Rehabilitation Interventions

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Corey A. Pew, Soroosh Sadeh, Hao-Yuan Hsiao, Richard R. Neptune
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Research-Article
J. Med. Devices. June 2023, 17(2): 021001.
Paper No: MED-21-1241
https://doi.org/10.1115/1.4056831
Published Online: April 17, 2023
View Articletitled, Development of a Novel Perturbation Platform System for Balance Response Testing and Rehabilitation Interventions
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Topics: Design, Testing, Weight (Mass)
Journal Articles

Muscle Contributions to Balance Control During Amputee and Nonamputee Stair Ascent

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Nicole G. Harper, Jason M. Wilken, Richard R. Neptune
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. December 2020, 142(12): 121007.
Paper No: BIO-19-1551
https://doi.org/10.1115/1.4047387
Published Online: September 8, 2020
View Articletitled, Muscle Contributions to Balance Control During Amputee and Nonamputee Stair Ascent
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Topics: Angular momentum, Muscle, Prostheses, Stairs, Gravity (Force), Simulation
Includes: Supplementary data
Journal Articles

Dynamic Balance During Human Movement: Measurement and Control Mechanisms

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Richard R. Neptune, Arian Vistamehr
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Review Articles
J Biomech Eng. July 2019, 141(7): 070801.
Paper No: BIO-18-1056
https://doi.org/10.1115/1.4042170
Published Online: May 23, 2019
View Articletitled, Dynamic Balance During Human Movement: Measurement and Control Mechanisms
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Topics: Angular momentum, Biomechanics, Mechanical admittance, Muscle, Steady state, Wounds, Stability, Risk, Center of mass, Propulsion
Journal Articles

Muscle Function and Coordination of Amputee Stair Ascent

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Nicole G. Harper, Jason M. Wilken, Richard R. Neptune
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. December 2018, 140(12): 121004.
Paper No: BIO-17-1545
https://doi.org/10.1115/1.4040772
Published Online: September 25, 2018
View Articletitled, Muscle Function and Coordination of Amputee Stair Ascent
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Topics: Muscle, Propulsion, Prostheses, Stairs, Simulation, Biomechanics, Braking, Cycles, Weight (Mass)
Includes: Supplementary data
Journal Articles

A Coronally Clutching Ankle to Improve Amputee Balance on Coronally Uneven and Unpredictable Terrain

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Kyle H. Yeates, Ava D. Segal, Richard R. Neptune, Glenn K. Klute
Journal: Journal of Medical Devices
Publisher: ASME
Article Type: Research-Article
J. Med. Devices. September 2018, 12(3): 031001.
Paper No: MED-17-1011
https://doi.org/10.1115/1.4040183
Published Online: July 13, 2018
View Articletitled, A Coronally Clutching Ankle to Improve Amputee Balance on Coronally Uneven and Unpredictable Terrain
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Topics: Artificial limbs, Prostheses, Rotation, Angular momentum
Journal Articles

Foot and Ankle Joint Biomechanical Adaptations to an Unpredictable Coronally Uneven Surface

Open Access
Ava D. Segal, Kyle H. Yeates, Richard R. Neptune, Glenn K. Klute
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. March 2018, 140(3): 031004.
Paper No: BIO-17-1103
https://doi.org/10.1115/1.4037563
Published Online: January 17, 2018
View Articletitled, Foot and Ankle Joint Biomechanical Adaptations to an Unpredictable Coronally Uneven Surface
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Topics: Biomechanics, Kinematics, Pressure, Stress
Includes: Supplementary data
Journal Articles

Muscle Function and Coordination of Stair Ascent

Available to Purchase
Nicole G. Harper, Jason M. Wilken, Richard R. Neptune
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. January 2018, 140(1): 011001.
Paper No: BIO-16-1297
https://doi.org/10.1115/1.4037791
Published Online: October 19, 2017
View Articletitled, Muscle Function and Coordination of Stair Ascent
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Topics: Braking, Muscle, Propulsion, Stairs, Biomechanics, Knee, Simulation
Includes: Supplementary data
Journal Articles

A Simulation Framework for Virtual Prototyping of Robotic Exoskeletons

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Priyanshu Agarwal, Richard R. Neptune, Ashish D. Deshpande
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. June 2016, 138(6): 061004.
Paper No: BIO-15-1318
https://doi.org/10.1115/1.4033177
Published Online: April 27, 2016
View Articletitled, A Simulation Framework for Virtual Prototyping of Robotic Exoskeletons
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Topics: Design, Exoskeleton devices, Muscle, Stiffness, Simulation
Journal Articles

Shape Analysis of the Femoral Head: A Comparative Study Between Spherical, (Super)Ellipsoidal, and (Super)Ovoidal Shapes

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Daniel Simões Lopes, Richard R. Neptune, Artur A. Gonçalves, Jorge A. Ambrósio, Miguel T. Silva
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. November 2015, 137(11): 114504.
Paper No: BIO-15-1160
https://doi.org/10.1115/1.4031650
Published Online: October 1, 2015
View Articletitled, Shape Analysis of the Femoral Head: A Comparative Study Between Spherical, (Super)Ellipsoidal, and (Super)Ovoidal Shapes
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Topics: Shapes, Surface fitting, Errors, Genetic algorithms
Journal Articles

Selective Laser Sintered Versus Carbon Fiber Passive-Dynamic Ankle-Foot Orthoses: A Comparison of Patient Walking Performance

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Nicole G. Harper, Elizabeth M. Russell, Jason M. Wilken, Richard R. Neptune
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. September 2014, 136(9): 091001.
Paper No: BIO-13-1575
https://doi.org/10.1115/1.4027755
Published Online: June 26, 2014
View Articletitled, Selective Laser Sintered Versus Carbon Fiber Passive-Dynamic Ankle-Foot Orthoses: A Comparison of Patient Walking Performance
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Topics: Carbon fibers, Design, Kinematics, Lasers, Orthotics, Spatiotemporal phenomena, Stiffness, Struts (Engineering), Cycles, Biomechanics
Proceedings Papers

Muscle Mechanical Work Adaptations With Increasing Walking Speed

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Richard R. Neptune, Kotaro Sasaki, Steven A. Kautz
Proc. ASME. SBC2007, ASME 2007 Summer Bioengineering Conference, 29-30, June 20–24, 2007
Publisher: American Society of Mechanical Engineers
Paper No: SBC2007-176567
https://doi.org/10.1115/SBC2007-176567
View Paper titled, Muscle Mechanical Work Adaptations With Increasing Walking Speed
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Topics: Muscle, Propulsion, Center of mass, Knee, Modeling
Proceedings Papers

The Role of Ankle Plantarflexors in Maintaining Dynamic Balance During Human Walking

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Richard R. Neptune, Craig P. McGowan, Allison L. Hall
Proc. ASME. SBC2012, ASME 2012 Summer Bioengineering Conference, Parts A and B, 365-366, June 20–23, 2012
Publisher: American Society of Mechanical Engineers
Paper No: SBC2012-80734
https://doi.org/10.1115/SBC2012-80734
View Paper titled, The Role of Ankle Plantarflexors in Maintaining Dynamic Balance During Human Walking
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Topics: Angular momentum, Center of mass, Modeling, Muscle
Proceedings Papers

Modular Control of Human Walking: A Modeling and Simulation Study

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Richard R. Neptune, David J. Clark, Steven A. Kautz
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 1211-1212, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-204166
https://doi.org/10.1115/SBC2009-204166
View Paper titled, Modular Control of Human Walking: A Modeling and Simulation Study
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Topics: Modeling, Simulation, Muscle, Biomechanics, Propulsion, Dynamics (Mechanics), Weight (Mass)
Proceedings Papers

Individual Muscle Contributions to Whole-Body Angular Momentum During Normal Walking

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Richard R. Neptune, Craig P. McGowan
Proc. ASME. SBC2010, ASME 2010 Summer Bioengineering Conference, Parts A and B, 441-442, June 16–19, 2010
Publisher: American Society of Mechanical Engineers
Paper No: SBC2010-19351
https://doi.org/10.1115/SBC2010-19351
View Paper titled, Individual Muscle Contributions to Whole-Body Angular Momentum During Normal Walking
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Topics: Angular momentum, Muscle, Nervous system
Journal Articles

Optimization of Prosthetic Foot Stiffness to Reduce Metabolic Cost and Intact Knee Loading During Below-Knee Amputee Walking: A Theoretical Study

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Nicholas P. Fey, Glenn K. Klute, Richard R. Neptune
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. November 2012, 134(11): 111005.
https://doi.org/10.1115/1.4007824
Published Online: October 26, 2012
View Articletitled, Optimization of Prosthetic Foot Stiffness to Reduce Metabolic Cost and Intact Knee Loading During Below-Knee Amputee Walking: A Theoretical Study
Open the PDF for Optimization of Prosthetic Foot Stiffness to Reduce Metabolic Cost and Intact Knee Loading During Below-Knee Amputee Walking: A Theoretical Study in another window
Topics: Artificial limbs, Knee, Muscle, Propulsion, Stiffness, Optimization, Simulation
Journal Articles

Manufacture of Energy Storage and Return Prosthetic Feet Using Selective Laser Sintering

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Brian J. South, Nicholas P. Fey, Gordon Bosker, Richard R. Neptune
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Design Innovations
J Biomech Eng. January 2010, 132(1): 015001.
https://doi.org/10.1115/1.4000166
Published Online: December 18, 2009
View Articletitled, Manufacture of Energy Storage and Return Prosthetic Feet Using Selective Laser Sintering
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Topics: Artificial limbs, Computer-aided design, Design, Energy storage, Kinematics, Lasers, Manufacturing, Sintering, Stiffness, Testing
Journal Articles

Design and Analysis of Orthogonally Compliant Features for Local Contact Pressure Relief in Transtibial Prostheses

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Mario C. Faustini, Richard H. Crawford, Richard R. Neptune, William E. Rogers, Gordon Bosker
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. November 2005, 127(6): 946–951.
https://doi.org/10.1115/1.2049331
Published Online: July 7, 2005
View Articletitled, Design and Analysis of Orthogonally Compliant Features for Local Contact Pressure Relief in Transtibial Prostheses
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Topics: Design, Optimization, Pressure, Pressure measurement, Topology, Engineering prototypes, Prostheses, Artificial limbs