Jason Roy Franz

Works (57)

2022 article

A Low-Cost, Open Source Wireless Body Area Network for Clinical Gait Rehabilitation

2022 IEEE SENSORS.

By: J. Twiddy, K. Peterson, G. Maddocks, R. MacPherson, R. Pimentel, M. Yates, C. Armitano-Lago*, A. Kiefer* ...

author keywords: wearable; wireless body area network; inertial measurement unit; gait rehabilitation; biomechanics; vertical; ground reaction force
Source: Web Of Science
Added: February 27, 2023

2022 journal article

Association of Quality of Life With Moderate-to-Vigorous Physical Activity After Anterior Cruciate Ligament Reconstruction

JOURNAL OF ATHLETIC TRAINING, 57(6), 532–539.

By: H. Davis-Wilson*, L. Thoma*, L. Longobardi*, J. Franz, J. Blackburn*, A. Hackney*, B. Pietrosimone*

author keywords: daily steps; physical activity; Knee Injury and Osteoarthritis Outcome Score; patient-reported outcomes
Source: Web Of Science
Added: February 20, 2023

2022 journal article

Linking Gait Biomechanics and Daily Steps After ACL Reconstruction

MEDICINE & SCIENCE IN SPORTS & EXERCISE, 54(5), 709–716.

By: C. Lisee*, H. Davis-Wilson, A. Evans-Pickett, W. Horton, J. Blackburn, J. Franz, L. Thoma, J. Spang, B. Pietrosimone

author keywords: MECHANICAL LOADING; VERTICAL GROUND REACTION FORCE; OSTEOARTHRITIS; PHYSICAL ACTIVITY
Source: Web Of Science
Added: June 27, 2022

2022 review

Multimodal Diagnostic Approaches to Advance Precision Medicine in Sarcopenia and Frailty

[Review of ]. NUTRIENTS, 14(7).

author keywords: sarcopenia; sarcopenic obesity; precision medicine; intramuscular fat
Source: Web Of Science
Added: April 25, 2022

2022 journal article

Personalized fusion of ultrasound and electromyography-derived neuromuscular features increases prediction accuracy of ankle moment during plantarflexion

BIOMEDICAL SIGNAL PROCESSING AND CONTROL, 71.

By: Q. Zhang, W. Clark*, J. Franz & N. Sharma

author keywords: Ultrasound imaging; Surface electromyography; Isometric ankle plantarflexion; Support vector machine regression; Feedforward neural network; Human effort prediction
Sources: Web Of Science, ORCID
Added: October 4, 2021

2022 journal article

Quadriceps Muscle Action and Association With Knee Joint Biomechanics in Individuals with Anterior Cruciate Ligament Reconstruction

JOURNAL OF APPLIED BIOMECHANICS, 38(5), 328–335.

By: A. Munsch, A. Evans-Pickett, H. Davis-Wilson, B. Pietrosimone & J. Franz

author keywords: secondary knee osteoarthritis; gait biomechanics; ultrasound; fascicle
Source: Web Of Science
Added: January 3, 2023

2022 journal article

Quantifying mechanical and metabolic interdependence between speed and propulsive force during walking

FRONTIERS IN SPORTS AND ACTIVE LIVING, 4.

By: R. Pimentel*, J. Feldman, M. Lewek & J. Franz

author keywords: gait; locomotion; treadmill; walking economy; energy expenditure; push-off
Source: Web Of Science
Added: October 3, 2022

2022 journal article

Shorter muscle fascicle operating lengths increase the metabolic cost of cyclic force production

JOURNAL OF APPLIED PHYSIOLOGY, 133(3), 524–533.

By: O. Beck*, L. Trejo*, J. Schroeder*, J. Franz & G. Sawicki*

author keywords: dynamometer; economy; efficiency; energetic; length
Source: Web Of Science
Added: September 12, 2022

2022 journal article

Slowing down to preserve balance in the presence of optical flow perturbations

GAIT & POSTURE, 96, 365–370.

By: A. Shelton, E. McTaggart, J. Allen, V. Mercer & J. Franz

author keywords: Stability; Walking; Gait; Speed
Source: Web Of Science
Added: August 8, 2022

2022 journal article

The metabolic cost of walking balance control and adaptation in young adults

GAIT & POSTURE, 96, 190–194.

By: S. Ahuja* & J. Franz

author keywords: Stability; Energy; Perturbations; Optimization; Optical flow
Source: Web Of Science
Added: July 26, 2022

2021 article

A sound approach to improving exoskeletons and exosuits

Franz, J. R. (2021, November 10). SCIENCE ROBOTICS, Vol. 6.

By: J. Franz

Source: Web Of Science
Added: December 13, 2021

2021 journal article

Age does not affect the relationship between muscle activation and joint work during incline and decline walking

JOURNAL OF BIOMECHANICS, 124.

By: J. Waanders*, A. Murgia*, P. DeVita*, J. Franz & T. Hortobagyi*

author keywords: Gait; Biomechanics; Joint work; EMG; Aging
Source: Web Of Science
Added: July 26, 2021

2021 journal article

Age-related changes to triceps surae muscle-subtendon interaction dynamics during walking

SCIENTIFIC REPORTS, 11(1).

By: W. Clark* & J. Franz

Source: Web Of Science
Added: November 15, 2021

2021 journal article

Age-related differences in calf muscle recruitment strategies in the time-frequency domain during walking as a function of task demand

JOURNAL OF APPLIED PHYSIOLOGY, 131(4), 1348–1360.

By: H. Kim* & J. Franz

author keywords: activation; elderly; electromyography; frequency; plantar flexor
Source: Web Of Science
Added: November 1, 2021

2021 article

Cueing Changes in Peak Vertical Ground Reaction Force to Improve Coordination Dynamics in Walking

Armitano-Lago, C., Pietrosimone, B., Evans-Pickett, A., Davis-Wilson, H., Franz, J. R., Blackburn, T., & Kiefer, A. W. (2021, May 15). JOURNAL OF MOTOR BEHAVIOR.

By: C. Armitano-Lago*, B. Pietrosimone*, A. Evans-Pickett*, H. Davis-Wilson*, J. Franz, T. Blackburn*, A. Kiefer*

author keywords: biofeedback; anterior cruciate ligament reconstruction; cross recurrence; relative phase
Source: Web Of Science
Added: July 6, 2021

2021 article

Editorial: Tendon Structure-Function Relationship in Health, Ageing, and Injury

Maas, H., Arndt, T., & Franz, J. R. (2021, June 18). FRONTIERS IN SPORTS AND ACTIVE LIVING, Vol. 3.

By: H. Maas*, T. Arndt* & J. Franz

author keywords: subtendon; non-uniform deformation; Achilles tendon; ultrasound; aging; skeletal muscle
Source: Web Of Science
Added: July 19, 2021

2021 journal article

Effects of Horizontal Impeding Force Gait Training on Older Adult Push-Off Intensity

MEDICINE AND SCIENCE IN SPORTS AND EXERCISE, 53(3), 574–580.

By: K. Conway, K. Crudup*, M. Lewek & J. Franz

author keywords: FUNCTIONAL PERFORMANCE; GAIT BIOMECHANICS; REHABILITATION; EXERCISE
Source: Web Of Science
Added: March 15, 2021

2021 journal article

Gradually learning to increase gait propulsion in young unimpaired adults

HUMAN MOVEMENT SCIENCE, 75.

By: L. Herrero*, J. Franz & M. Lewek

author keywords: Gait; Propulsion; Motor learning; Implicit; Explicit
Source: Web Of Science
Added: March 15, 2021

2021 journal article

Imaging and Simulation of Inter-muscular Differences in Triceps Surae Contributions to Forward Propulsion During Walking

ANNALS OF BIOMEDICAL ENGINEERING, 49(2), 703–715.

By: W. Clark*, R. Pimentel* & J. Franz

author keywords: Triceps surae; Neuromechanics; Ultrasound; OpenSim; Forward propulsion
Source: Web Of Science
Added: September 28, 2020

2021 article

Reduced Achilles Tendon Stiffness Disrupts Calf Muscle Neuromechanics in Elderly Gait

Krupenevich, R. L., Beck, O. N., Sawicki, G. S., & Franz, J. R. (2021, July 16). GERONTOLOGY.

author keywords: Aging; Biomechanics; Stiffness; Energy expenditure; Muscle mechanics; Ankle exoskeleton
Source: Web Of Science
Added: August 2, 2021

2021 journal article

The metabolic and mechanical consequences of altered propulsive force generation in walking

JOURNAL OF BIOMECHANICS, 122.

author keywords: Biomechanics; Oxygen consumption; Aging; Elderly; Fatigue
Source: Web Of Science
Added: June 10, 2021

2020 journal article

Biofeedback augmenting lower limb loading alters the underlying temporal structure of gait following anterior cruciate ligament reconstruction

HUMAN MOVEMENT SCIENCE, 73.

By: C. Armitano-Lago*, B. Pietrosimone*, H. Davis-Wilson*, A. Evans-Pickett*, J. Franz, T. Blackburn*, A. Kiefer*

author keywords: DFA; Nonlinear; Feedback; Variability
Source: Web Of Science
Added: November 16, 2020

2020 journal article

Biomechanical effects of manipulating peak vertical ground reaction force throughout gait in individuals 6-12 months after anterior cruciate ligament reconstruction

CLINICAL BIOMECHANICS, 76.

By: A. Evans-Pickett*, H. Davis-Wilson*, B. Luc-Harkey*, J. Blackburn*, J. Franz, D. Padua*, M. Seeley*, B. Pietrosimone*

author keywords: Knee; Biofeedback; Gait-training; Unloading
Source: Web Of Science
Added: June 29, 2020

2020 journal article

Can optical flow perturbations detect walking balance impairment in people with multiple sclerosis?

PLOS ONE, 15(3).

By: B. Selgrade*, D. Meyer*, J. Sosnoff* & J. Franz

Source: Web Of Science
Added: June 15, 2020

2020 journal article

Can shank acceleration provide a clinically feasible surrogate for individual limb propulsion during walking?

JOURNAL OF BIOMECHANICS, 98.

By: N. Pieper*, M. Lewek & J. Franz

author keywords: Biomechanics; Ankle Power; Wearables; Accelerometers; Push-off
Source: Web Of Science
Added: February 10, 2020

2020 journal article

Effects of aging and target location on reaction time and accuracy of lateral precision stepping during walking

JOURNAL OF BIOMECHANICS, 104.

By: B. Selgrade*, M. Childs* & J. Franz

author keywords: Elderly; Balance; Foot Placement; Stability; Gait
Source: Web Of Science
Added: May 18, 2020

2020 journal article

How age and surface inclination affect joint moment strategies to accelerate and decelerate individual leg joints during walking

JOURNAL OF BIOMECHANICS, 98.

By: J. Waanders*, A. Murgia*, T. Hortobagyi*, P. DeVita* & J. Franz

author keywords: Induced acceleration analysis; Eccentric; Concentric; Gait; Aging
Source: Web Of Science
Added: February 10, 2020

2020 journal article

Immediate Biochemical Changes After Gait Biofeedback in Individuals With Anterior Cruciate Ligament Reconstruction

JOURNAL OF ATHLETIC TRAINING, 55(10), 1106–1115.

By: B. Luc-Harkey*, J. Franz, A. Hackney*, J. Blackburn*, D. Padua*, T. Schwartz*, H. Davis-Wilson*, J. Spang*, B. Pietrosimone*

author keywords: cartilage oligomeric matrix protein; vertical ground reaction force; posttraumatic osteoarthritis; biomarkers
Source: Web Of Science
Added: November 16, 2020

2020 journal article

Increasing the Propulsive Demands of Walking to Their Maximum Elucidates Functionally Limiting Impairments in Older Adult Gait

JOURNAL OF AGING AND PHYSICAL ACTIVITY, 28(1), 1–8.

By: K. Conway & J. Franz

author keywords: ankle moment; biomechanics; impeding forces; push-off
Source: Web Of Science
Added: July 6, 2020

2020 journal article

Older Adults Overcome Reduced Triceps Surae Structural Stiffness to Preserve Ankle Joint Quasi-Stiffness During Walking

JOURNAL OF APPLIED BIOMECHANICS, 36(4), 209–216.

By: R. Krupenevich*, W. Clark*, G. Sawicki & J. Franz

author keywords: Achilles tendon; activation; aging; plantar flexor; biofeedback
Source: Web Of Science
Added: August 17, 2020

2020 journal article

Shorter gastrocnemius fascicle lengths in older adults associate with worse capacity to enhance push-off intensity in walking

GAIT & POSTURE, 77, 89–94.

By: K. Conway & J. Franz

author keywords: Ultrasound; Plantarflexor; Triceps surae; Elderly; Gait; Biomechanics
Source: Web Of Science
Added: April 6, 2020

2020 journal article

The effects of knee extensor moment biofeedback on gait biomechanics and quadriceps contractile behavior

PEERJ, 8.

By: A. Munsch, B. Pietrosimone* & J. Franz

author keywords: Walking; Osteoarthritis; Joint loading; Rehabilitation; Gait training; Ultrasound; Biofeedback
Source: Web Of Science
Added: July 20, 2020

2020 review

These legs were made for propulsion: advancing the diagnosis and treatment of post-stroke propulsion deficits

[Review of ]. JOURNAL OF NEUROENGINEERING AND REHABILITATION, 17(1).

author keywords: Propulsion; Locomotion; Walking; Rehabilitation; Diagnosis; Intervention; Sensors; Robotics
Source: Web Of Science
Added: November 16, 2020

2020 journal article

Triceps surae muscle-subtendon interaction differs between young and older adults

CONNECTIVE TISSUE RESEARCH, 61(1), 104–113.

By: W. Clark* & J. Franz

author keywords: Ultrasound; biomechanics; speckle tracking; interfascicle adhesions; plantarflexor
Source: Web Of Science
Added: December 16, 2019

2019 journal article

Activation-Dependent Changes in Soleus Length-Tension Behavior Augment Ankle Joint Quasi-Stiffness

JOURNAL OF APPLIED BIOMECHANICS, 35(3), 182–189.

By: W. Clark n & J. Franz

author keywords: impedance; prostheses; foot; neuromechanics; Achilles tendon
Source: Web Of Science
Added: June 17, 2019

2019 journal article

Advanced Age Redistributes Positive but Not Negative Leg Joint Work during Walking

MEDICINE AND SCIENCE IN SPORTS AND EXERCISE, 51(4), 615–623.

By: J. Waanders*, T. Hortobagyi*, A. Murgia*, P. Devita* & J. Franz

author keywords: ECCENTRIC; CONCENTRIC; BIOMECHANICS; GAIT; AGING
Source: Web Of Science
Added: April 2, 2019

2019 journal article

Ankle Rotation and Muscle Loading Effects on the Calcaneal Tendon Moment Arm: An In Vivo Imaging and Modeling Study

ANNALS OF BIOMEDICAL ENGINEERING, 47(2), 590–600.

By: J. Franz, A. Khanchandani*, H. McKenny* & W. Clark*

author keywords: Ultrasound; Plantarflexor; Triceps surae; OpenSim; Dynamometry
Source: Web Of Science
Added: April 20, 2020

2019 journal article

Ankle power biofeedback attenuates the distal-to-proximal redistribution in older adults

GAIT & POSTURE, 71, 44–49.

By: M. Browne & J. Franz

author keywords: Plantarflexor; Push-off; Gait; Elderly; Hip
Source: Web Of Science
Added: July 8, 2019

2019 journal article

The effects of cognitive load and optical flow on antagonist leg muscle coactivation during walking for young and older adults

JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY, 44, 8–14.

author keywords: Aging; Gait; EMG; Muscle coactivation; Visual feedback; Dual task
Source: Web Of Science
Added: February 4, 2019

2019 journal article

Time-dependent tuning of balance control and aftereffects following optical flow perturbation training in older adults

JOURNAL OF NEUROENGINEERING AND REHABILITATION, 16.

By: J. Richards*, B. Selgrade*, M. Qiao*, P. Plummer*, E. Wikstrom* & J. Franz

Source: Web Of Science
Added: July 22, 2019

2019 journal article

Visuomotor error augmentation affects mediolateral head and trunk stabilization during walking

HUMAN MOVEMENT SCIENCE, 68.

By: M. Qiao*, J. Richards* & J. Franz

author keywords: Optical flow; Medio-lateral; Anchor; Adaptation; Stability
Source: Web Of Science
Added: December 30, 2019

2018 journal article

Aging effects on leg joint variability during walking with balance perturbations

GAIT & POSTURE, 62, 27–33.

By: M. Qiao*, J. Feld* & J. Franz

author keywords: Visual feedback; Elderly; Gait; Stability; Falls; Kinematics
Source: Web Of Science
Added: August 6, 2018

2018 journal article

Association between kinesiophobia and walking gait characteristics in physically active individuals with anterior cruciate ligament reconstruction

GAIT & POSTURE, 64, 220–225.

By: B. Luc-Harkey*, J. Franz, E. Losina* & B. Pietrosimone*

author keywords: Ground reaction force; Knee extension moment; Knee flexion excursion; Limb symmetry index; Tampa Scale for Kinesiophobia
Source: Web Of Science
Added: August 6, 2018

2018 journal article

Do triceps surae muscle dynamics govern non-uniform Achilles tendon deformations?

PeerJ, 6.

By: W. Clark & J. Franz

Source: NC State University Libraries
Added: August 6, 2018

2018 journal article

Does local dynamic stability during unperturbed walking predict the response to balance perturbations? An examination across age and falls history

GAIT & POSTURE, 62, 80–85.

By: M. Qiao*, K. Truong* & J. Franz

author keywords: Balance; Elderly; Lyapunov; Stability
Source: Web Of Science
Added: August 6, 2018

2018 journal article

The Functional Utilization of Propulsive Capacity During Human Walking

JOURNAL OF APPLIED BIOMECHANICS, 34(6), 474–482.

By: K. Conway*, R. Bissette* & J. Franz

author keywords: impeding forces; biomechanics; gait; elderly; push-off
Source: Web Of Science
Added: December 31, 2018

2017 journal article

Do kinematic metrics of walking balance adapt to perturbed optical flow?

HUMAN MOVEMENT SCIENCE, 54, 34–40.

By: J. Thompson* & J. Franz

author keywords: Sensorimotor; Virtual reality; Gait; Vision; Visual feedback
Source: Web Of Science
Added: August 6, 2018

2017 journal article

Does dynamic stability govern propulsive force generation in human walking?

ROYAL SOCIETY OPEN SCIENCE, 4(11).

By: M. Browne* & J. Franz

author keywords: variability; push-off; balance; walking speed; biofeedback; ageing
Source: Web Of Science
Added: August 6, 2018

2017 journal article

It's positive to be negative: Achilles tendon work loops during human locomotion

PLOS ONE, 12(7).

By: K. Zelik* & J. Franz

Source: Web Of Science
Added: August 6, 2018

2017 journal article

Neuroimaging of Human Balance Control: A Systematic Review

Frontiers in Human Neuroscience, 11.

By: E. Wittenberg, J. Thompson, C. Nam & J. Franz

author keywords: static and dynamic balance control; temporal and spatial dynamics of brain activation; mechanical perturbation; sensory degradation; susceptibility to cognitive dual tasks; movement artifacts
Sources: Web Of Science, Crossref, ORCID
Added: August 6, 2018

2017 journal article

The Neuromuscular Origins of Kinematic Variability during Perturbed Walking

SCIENTIFIC REPORTS, 7.

By: H. Stokes*, J. Thompson* & J. Franz

Source: Web Of Science
Added: August 6, 2018

2017 journal article

The effects of Achilles tendon compliance on triceps surae mechanics and energetics in walking

JOURNAL OF BIOMECHANICS, 60, 227–231.

By: M. Orselli*, J. Franz & D. Thelen*

author keywords: Plantarflexor; Musculoskeletal modeling; Forward dynamics; Mechanical power; Metabolic energy
Source: Web Of Science
Added: August 6, 2018

2017 journal article

The independent effects of speed and propulsive force on joint power generation in walking

JOURNAL OF BIOMECHANICS, 55, 48–55.

By: M. Browne* & J. Franz

author keywords: Plantarflexor; Push-off; Aging; Gait; Biofeedback
Source: Web Of Science
Added: August 6, 2018

2017 journal article

Variation in the human Achilles tendon moment arm during walking

COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING, 20(2), 201–205.

By: K. Rasske*, D. Thelen* & J. Franz

author keywords: Gait; plantarflexors; triceps surae; ultrasound; musculoskeletal model
Source: Web Of Science
Added: August 6, 2018

2017 journal article

Visuomotor Entrainment and the Frequency-Dependent Response of Walking Balance to Perturbations

IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING, 25(8), 1135–1142.

author keywords: Gait; posture; sensorimotor; stability; virtual reality
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Imaging and simulation of Achilles tendon dynamics: Implications for walking performance in the elderly

JOURNAL OF BIOMECHANICS, 49(9), 1403–1410.

By: J. Franz & D. Thelen*

author keywords: Ultrasound; Plantarflexor; Aging; Musculoskeletal modeling; Simulation; Biomechanics
Source: Web Of Science
Added: August 6, 2018

2016 review

The Age-Associated Reduction in Propulsive Power Generation in Walking

[Review of ]. EXERCISE AND SPORT SCIENCES REVIEWS, 44(4), 129–136.

By: J. Franz

author keywords: plantarflexor; biomechanics; gait; elderly; ankle; geriatrics; ultrasound
Source: Web Of Science
Added: August 6, 2018