Jongsang Son

Jongsang Son, PhD

Research Scientist
Research Assistant Professor of Physical Medicine and Rehabilitation
Interested in this profile?

About Me

Jongsang Son obtained a Ph.D. in neuromuscular biomechanics and rehabilitation engineering from Yonsei University, Wonju, South Korea. He is currently a Research Scientist at Shirley Ryan AbilityLab and a Research Assistant Professor in the Department of Physical Medicine and Rehabilitation at Northwestern University, Chicago, IL, United States. His research priorities are to understand the underlying neuromuscular mechanisms of motor impairments in various clinical populations and to investigate neuromuscular adaptations to potential rehabilitation interventions. Ultimately, he hopes to translate his discoveries into practical interventions that can prevent the development of motor impairments and help people with chronic disease improve motor functions.


Shirley Ryan AbilityLab

355 East Erie Street

Arms + Hands Lab

Chicago, IL 60611

Education & Training



    2004 - 2007
    Biomedical Engineering, Yonsei University
    2007 - 2009
    Biomedical Engineering, Yonsei University
    2009 - 2014
    Biomedical Engineering, Yonsei University


    2014 - 2015
    Biomedical Engineering, Yonsei University
    2015 - 2019
    Sensory Motor Performance Program, Rehabilitation Institute of Chicago

Recent Publications

Spatial correlation and segregation of multimodal MRI abnormalities in multiple system atrophy.
Lee MJ, Kim TH, Mun CW, Shin HK, Son J, Lee JH
doi: 10.1007/s00415-018-8874-z
Weight loss is associated with rapid striatal dopaminergic degeneration in Parkinson's disease.
Pak K, Shin HK, Kim EJ, Lee JH, Lyoo CH, Son J, Lee MJ
doi: 10.1016/j.parkreldis.2018.02.044
Adhesive Leaf Created by a Corona Discharge.
Lee W, Son J, Kim S, Yang D, Choi S, Watanabe RA, Hwang KS, Lee SW, Lee G, Yoon DS
doi: 10.1038/s41598-018-19328-8
Intraoperative and biomechanical studies of human vastus lateralis and vastus medialis sarcomere length operating range.
Son J, Indresano A, Sheppard K, Ward SR, Lieber RL
doi: 10.1016/j.jbiomech.2017.11.038
Changes of Shoulder, Elbow, and Wrist Stiffness Matrix Post Stroke.
Zhang LQ, Son J, Park HS, Kang SH, Lee Y, Ren Y
doi: 10.1109/TNSRE.2017.2707238
Robot-guided ankle sensorimotor rehabilitation of patients with multiple sclerosis.
Lee Y, Chen K, Ren Y, Son J, Cohen BA, Sliwa JA, Zhang LQ
doi: 10.1016/j.msard.2016.12.006

Honors & Awards

  • Yamaguchi Medal for Young Investigators in Soft Tissue Mechanics
    Asian-Pacific Association for Biomechanics, World Congress of Biomechanics, 2018
  • Best Lecturer Award (Motion Analysis)
    Yonsei University, 2013
  • Best Lecturer Award (Biotransport Theory)
    Yonsei University, 2012
  • Participation Award (Real-time Muscle Force Estimation)
    Yonsei University Graduate School, 2009
  • Happy Idea!! Award (Assistant system for joint movements of quadriplegia patients using brain-computer convergence technology)
    Assistive Technology Research & Assistance Center, 2009
  • Best Presentation Award (Development of the robotic gait trainer for persons with gait disorder)
    Information and Control Symposium, 2008
  • Best Paper Award (A FES Sensor System for Improving Hemiplegic Gait)
    Yonsei University, 2007


  • The Davee Foundation Stroke Research Seed Grant
    Stroke Research Committee in Department of Neurology, Division of Stroke and Neurocritical Care, Northwestern University, 2018 - 2020
  • Switzer Research Fellowship Program
    National Institute on Disability, Independent Living, and Rehabilitation Research (NIDILRR) - Administration for Community Living (ACL), 2017 - 2018

Research Activities

  • Reviewer Board
    Biosensors, 2020
  • Topic Editor
    Biosensors, 2020
  • Guest Editor
    BioMed Research International, 2015
  • Reviewer
    IEEE Transactions on Biomedical Engineering, Journal of Biomechanics, Journal of Applied Biomechanics, Clinical Biomechanics, Journal of NeuroEngineering and Rehabilitation, PM&R, Frontiers in Neurology, Sensors, Biosensors, Brain Sciences, etc.

Research Interests

  • Mechanical and geometrical properties of spastic muscle
  • Electrophysiological properties of motoneuron population after stroke
  • Muscle-tendon modeling and musculoskeletal simulation

Single Motor Unit Laboratory

We record electrical activity from single motor units as well as muscle during voluntary and reflex contractions in patients with neurological disorders.

view lab