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Biography

My research mission is to better understand the interplay between locomotor biomechanics and metabolic energy to improve mobility in individuals with neuromuscular impairments. Uncovering the factors that impact human gait patterns will enable researchers and clinicians to build better rehabilitation devices and improved personalized rehabiliation strategies by identifying features that contribute to increased metabolic cost, which clinicians can then target during an intervention. I use a combination of experimental and computational modeling techniques to investigate the factors that impact preferred walking patterns.

Ongoing research includes investigating the relationships between specific neuromuscular impairments after a stroke (e.g., hemiparesis or abnormal muscle coactivations) and gait deviations.

Activities

Employment (3)

Northwestern University, Evanston, IL: Evanston, US

Employment
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Northwestern University Galter Health Sciences Library Symplectic Elements

Northwestern University: Chicago, IL, US

2023-05-01 to present | Assistant Professor (Physical Medicine and Rehabilitation)
Employment
Source: Self-asserted source
Russell Johnson

University of Southern California: Los Angeles, California, US

2019-06-01 to 2023-04-30 | Post-doctoral Researcher (Biokinesiology and Physical Therapy)
Employment
Source: Self-asserted source
Russell Johnson

Education and qualifications (3)

University of Massachusetts Amherst: Amherst Center, Massachusetts, US

2015-02-01 to 2019-05-31 | PhD (Kinesiology)
Education
Source: Self-asserted source
Russell Johnson

University of Massachusetts Amherst: Amherst Center, Massachusetts, US

2012-09-01 to 2015-01-31 | Masters of Science (Kinesiology)
Education
Source: Self-asserted source
Russell Johnson

Springfield College: Springfield, Massachusetts, US

2009-09-01 to 2011-12-31 | Bachelors of Science (Applied Exercise Science)
Education
Source: Self-asserted source
Russell Johnson

Works (14)

Biomechanical mechanisms for modulating stride frequency in walking.

Journal of Biomechanics
2025-03 | Journal article
SOURCE-WORK-ID:

3625256

Part of ISSN: 0021-9290
Contributors: Russell Johnson; Brian R Umberger
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

Joint-level contributions to reducing mechanical work during split-belt walking in older adults.

Journal of Biomechanics
2025-01 | Journal article
SOURCE-WORK-ID:

3618412

Part of ISSN: 0021-9290
Contributors: Russell Johnson; Tara Cornwell; Ryan Novotny; James M Finley
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

Lower Extremity Inverse Kinematics Results Differ Between Inertial Measurement Unit- and Marker-Derived Gait Data.

Journal of Applied Biomechanics
2023-06-01 | Journal article
SOURCE-WORK-ID:

3562160

Part of ISSN: 1065-8483
Contributors: Jocelyn F Hafer; Julien A Mihy; Andrew Hunt; Ronald F Zernicke; Russell Johnson
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

Patterns of asymmetry and energy cost generated from predictive simulations of hemiparetic gait.

PLoS Computational Biology
2022-09 | Journal article
SOURCE-WORK-ID:

3562161

Part of ISSN: 1553-734X
Contributors: Russell Johnson; Nicholas A Bianco; James M Finley
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

Using Bayesian inference to estimate plausible muscle forces in musculoskeletal models.

Journal of NeuroEngineering and Rehabilitation
2022-03-23 | Journal article
SOURCE-WORK-ID:

3562162

Part of ISSN: 1743-0003
Contributors: Russell Johnson; Daniel Lakeland; James M Finley
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

The effects of posture on the three-dimensional gait mechanics of human walking in comparison with walking in bipedal chimpanzees.

Journal of Experimental Biology
2022-03-01 | Journal article
SOURCE-WORK-ID:

3562163

Part of ISSN: 0022-0949
Contributors: Russell Johnson; Matthew C O'Neill; Brian R Umberger
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

IMU-derived kinematics detect gait differences with age or knee osteoarthritis but differ from marker-derived inverse kinematics

2022-01-11 | Other
SOURCE-WORK-ID:

3627190

Contributors: Jocelyn F Hafer; Julien A Mihy; Andrew Hunt; Ronald F Zernicke; Russell Johnson
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

Simulated hemiparesis increases optimal spatiotemporal gait asymmetry but not metabolic cost

2021-12-21 | Other
SOURCE-WORK-ID:

3627192

Contributors: Russell Johnson; Nicholas A Bianco; James M Finley
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

The Effects of Posture on the Three-Dimensional Gait Mechanics of Human Walking in Comparison to Bipedal Chimpanzees

2021-08-01 | Other
SOURCE-WORK-ID:

3627193

Contributors: Russell Johnson; Matthew C O’Neill; Brian R Umberger
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

Using Bayesian Inference to Estimate Plausible Muscle Forces in Musculoskeletal Models

2021-07-29 | Other
SOURCE-WORK-ID:

3627191

Contributors: Russell Johnson; Daniel Lakeland; James M Finley
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

Comparison of measurement protocols to estimate preferred walking speed between sites

Gait & Posture
2020-03 | Journal article
Part of ISSN: 0966-6362
Source: Self-asserted source
Russell Johnson
grade
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A model-based motion capture marker location refinement approach using inverse kinematics from dynamic trials.

International Journal for Numerical Methods in Biomedical Engineering
2020-01 | Journal article
SOURCE-WORK-ID:

3562165

Part of ISSN: 2040-7939
Contributors: Mark A Price; Andrew K LaPrè; Russell Johnson; Brian R Umberger; Frank C Sup
Source: check_circle
Northwestern University Galter Health Sciences Library Symplectic Elements
grade
Preferred source (of 2)‎

Bilevel Optimization for Cost Function Determination in Dynamic Simulation of Human Gait

IEEE Transactions on Neural Systems and Rehabilitation Engineering
2019-07 | Journal article
Part of ISSN: 1534-4320
Part of ISSN: 1558-0210
Source: Self-asserted source
Russell Johnson
grade
Preferred source (of 2)‎

Systematic review and meta-analysis of gait mechanics in young and older adults

Experimental Gerontology
2017-09 | Journal article
Part of ISSN: 0531-5565
Source: Self-asserted source
Russell Johnson
grade
Preferred source (of 2)‎