Raviraj Nataraj

ASSISTANT PROFESSOR, BIOMEDICAL ENGINEERING
Building: Altorfer
Room: 213
Phone: 201-216-3555
Email: rnataraj@stevens.edu
Website
Education

- Ph.D., Biomedical Engineering, Case Western Reserve University
- M.S., Mechanical Engineering, Stanford University
- B.S., Biomedical Engineering, Case Western Reserve University

Research

- Functional Rehabilitation
- Feedback Control of Human Movement
- Computational Biomechanics
- Assistive Devices to Restore Mobility
- Neuromuscular Pathology

General Information

Dr. Raviraj Nataraj's research specializes in the development of control systems for better integration between users with movement dysfunction and their assistive devices. Virtual reality environments are used to train and better fit persons with spinal cord injury, stroke, or amputation to devices providing restorative function. Devices include sensorimotor prostheses and powered exoskeletons.

Experience

Assistant Professor, Stevens Institute of Technology (2016 - current)

  • Tenure-track in Department of Biomedical Engineering
  • Director of Movement Control Rehabilitation (MOCORE) Laboratory (http://www.mocorelab.com/)

 Postdoctoral Research Associate, Cleveland Clinic (2016)

  • Investigating user perception and function of multisensory hand prostheses for more natural control following upper-limb amputation

Postdoctoral Research Associate, Cleveland State University (2015 - 2016)

  • Identifying optimal control models for gait with implications for powered exoskeletons augmenting walking performance

Postdoctoral Research Fellow, Louis Stokes VA Medical Center (2014 - 2015)

  • Developing feedback control systems for advanced standing function at leaning postures to augment functional reaching workspace

Postdoctoral Researcher, Lerner Research Institute, Cleveland Clinic Foundation (2011 - 2013)

  • Investigating functional biomechanics of the hand including implications of carpal tunnel syndrome
  • Developing advanced methodology to measure digit kinematics and kinetics during dexterous hand activities
  • Examining the effects of visual feedback and compliance on pinching mechanics

Ph.D. Candidate, Biomedical Engineering Department, Case Western Reserve University (2005 - 2010)

  • Developed feedback control system for standing balance using functional neuromuscular stimulation following spinal cord injury
Professional Service

Professional Institutions Served and Affiliated:

  • Schaefer School of Engineering and Science, Department of Biomedical Engineering, Stevens Institute of Technology
  • Cleveland Functional Electrical Stimulation (FES) Center
  • Case Western Reserve University, Department of Biomedical Engineering 
  • Stanford University, Department of Mechanical Engineering
  • Cleveland Clinic Lerner Research Institute, Department of Biomedical Engineering
  • Advanced Platform Technology (APT) Center at the Cleveland Louis Stokes Veterans Affairs Medical Center
  • University Hospitals/Case Western Reserve University, Department of Orthopaedics
  • NIAMS/NIH Grant Number R01AR056964
  • NINDS/NIH Grant Number R01NS040547
  • NINDS/NIH Grant Number R01NS081710

Invited and Contributing Reviewer to Scientific Journals:

  • Medical & Biological Engineering & Computing
  • IEEE Transactions on Neural Systems & Rehabilitation Engineering
  • IEEE Transactions on Biomedical Engineering
  • Journal of Biomechanical Engineering
  • Journal of Rehabilitation Research and Development
  • Journal of Biomechanics
  • PLOSONE
  • Frontiers in Neuroscience
  • IEEE Transactions on Mechatronics
  • Frontiers in Robotics
  • Biomedical Engineering Online
Honors & Awards
  • CWRU President Scholarship
  • Case Alumni Scholarship
  • Stanford Mechanical Engineering Department Fellowship
  • Tau Beta Pi
  • Golden Key Honor Society
  • NSF-IGERT PhD Fellowship
  • NIH CWRU-BME Departmental Training Grant
  • VA Rehabilitation Pre-Doctoral Fellowship
  • NIH T32 Musculoskeletal Research Postdoctoral Fellowship
  • Senior Membership to IEEE
Professional Societies
  • IEEE (Institute of Electrical and Electronic Engineers)
  • American Society of Biomechanics (ASB)
  • Society for Neuroscience (SfN)
  • American Society for Engineering Education (ASEE)
  • American Society of Mechanical Engineers (ASME)
  • Neural Control of Movement (NCM)
  • Stanford Alumni Association
Selected Publications
Journals
  1. R Nataraj, ML Audu, RF Kirsch, and RJ Triolo. (2010). "Comprehensive joint feedback control for standing by functional neuromuscular stimulation following spinal cord injury: a simulation study", IEEE Transactions in Neural Systems and Rehabilitation, 18 (6).
  2. ML Audu, R Nataraj, SJ Gartman, and RJ Triolo. (2011). "Posture shifting after spinal cord injury using functional neuromuscular stimulation: a computer simulation study", Journal of Biomechanics, 44 (9).
  3. R Nataraj, ML Audu, RF Kirsch, and RJ Triolo. (2012). "Trunk acceleration for neuroprosthetic control of standing: a pilot study", Journal of Applied Biomechanics, 28 (1).
  4. R Nataraj, ML Audu, RF Kirsch, and RJ Triolo. (2012). "Center of mass acceleration feedback control for standing by functional neuromuscular stimulation: a simulation study", Journal of Rehabilitation Research and Development, 49 (2).
  5. R Nataraj, ML Audu, and RJ Triolo. (2012). "Comparing joint kinematics and center of mass acceleration as feedback for control of standing balance by functional neuromuscular stimulation", Journal of NeuroEngineering and Rehabilitation, , 9 (25).
  6. R Nataraj, ML Audu, and RJ Triolo. (2012). "Center of mass acceleration feedback control for standing by functional neuromuscular stimulation in the presence of internal perturbations", Journal of Rehabilitation Research and Development, 49 (6).
  7. ZL Shen, TA Mondello, R Nataraj, MF Domalain, and ZM Li. (2012). "A digit alignment device for kinematic analysis of the thumb and index finger", Gait & Posture, 36 (3).
  8. R Nataraj, ML Audu, and RJ Triolo. (2013). "Center of mass acceleration feedback control for standing by functional neuromuscular stimulation against external perturbations", IEEE Transactions in Biomedical Engineering, 16 (1).
  9. R Nataraj and ZM Li. (2013). "Robust identification of three-dimensional thumb and index finger kinematics with a minimal set of markers", Journal of Biomechanical Engineering, 135 (9).
  10. R Nataraj, ZM Li. (2015). "Integration of marker and force data to compute three-dimensional joint moments of the thumb and index finger digits during pinch", Computer Methods in Biomechanics and Biomedical Engineering, 18 (16).
  11. K Li, R Nataraj, TL Marquardt, ZM Li. (2013). "Directional coordination of thumb and finger forces during precision pinch", PLOS ONE, 8 (11).
  12. R Nataraj, PJ Evans, WH Seitz, ZM Li. (2014). "Pathokinematics of precision pinch associated with carpal tunnel syndrome", Journal of Orthopaedic Research, 32 (6).
  13. R Nataraj, PJ Evans, WH Seitz, ZM Li. (2014). "The effects of carpal tunnel syndrome on the reach-to-pinch maneuver", PLOS ONE, 9 (3).
  14. TL Marquardt, R Nataraj, PJ Evans, WH Seitz, ZM Li. (Apr 2014). "Thumb kinematic performance with carpal tunnel syndrome”, ", Clinical Orthopaedics and Related Research, 472.
  15. ML Audu, SJ Gartman, R Nataraj, RJ Triolo. (2014). "Posture dependent muscle stimulation control in a standing neuroprosthesis: A simulation feasibility study", Journal of Rehabilitation Research and Development, 51 (3).
  16. R Nataraj, CF Pasluosta, ZM Li. (Aug 2014). "Visual feedback regulates kinematic variability of the grasping digits relatively more than hand transport during reach-to-pinch", Human Movement Science, 36.
  17. R Nataraj, ML Audu, and RJ Triolo. (Nov 2014). "Adapting gains of control system using center of mass acceleration feedback for standing by functional neuromuscular stimulation", Applied Bionics and Biomechanics, 11 (4).
  18. R Nataraj, ML Audu, ZM Li. (Feb 2015). "Changes in the precision pinch mechanics with surface compliance", Journal of Biomechanics, 48 (4).
  19. R Nataraj, ML Audu, RJ Triolo. (Jan 2016). "Simulating the restoration of standing balance at leaning postures with functional neuromuscular stimulation following spinal cord injury", Med Biol Eng Comp, 54 (1).
  20. R Nataraj, ML Audu, RJ Triolo. (Feb 2017). "Restoring standing capabilities with feedback control of functional neuromuscular stimulation following spinal cord injury", Med Eng Phys, 42.
  21. R Nataraj, AJ van den Bogert. (Aug 2017). "Simulation Analysis of Linear Quadratic Feedback Control of Walking", J Biomech Eng, , 139 (10).
  22. P Marasco, J Hebert, J Sensinger, C Shell, J Schofield, Z Thumser, R Nataraj, D Beckler, M Dawson, D Blustein, S Gill, B Mensh, R Granja-Vazquez, M Newcomb, J Carey and B Orzell. (Mar 2018). "Illusory movement perception improves motor control for prosthetic hands", Science Translational Medicine, 10 (432).
  23. J Schofield, C Shell, Z Thumser, D Beckler, R Nataraj, P Marasco. (Dec 2018). "Characterization of the Sense of Agency over the Actions of Neural-machine Interface-operated Prostheses", Journal of Visualized Experiments, 143.
Conference Proceedings
  1. R Nataraj, AJ van den Bogert. (Aug 2016). "Simulation Analysis of Linear Quadratic Regulator Control of Gait – Implications for Exoskeleton Control", American Society of Biomechanics, Raleigh, NC.
  2. P Marasco, J Hebert, J Sensinger, C Shell, J Schofield, Z Thumser, R Nataraj, D Beckler, M Dawson, D Blustein, S Gill, R Granja-Vazquez, J Carey and B Orzell. (Aug 2017). "Functional Kinesthetic Perception of Complex Bionic Hand ", Myoelectric Control Symposium (August 2017), University of New Brunswick, Canada. .
  3. R Nataraj, S Sanford, A Shah, Y Chen, G Borodyansky. V Srevatsan. (Nov 2017). "Cognitive agency in hand grasp performance - implications for rehabilitation", Neuroscience 2017 presented by the Society for Neuroscience, Washington DC.
  4. R Nataraj, A Shah, S Sanford. (May 2018). "Cognitive agency in visual-guided performance of hand grasp", Society for Neural Control of Movement, Santa Fe, NM.
  5. R Nataraj, A Shah, S Sanford. (Jul 2018). "Cognitive agency for rehabilitation of grasp performance", Progress in Clinical Motor Control, State College, PA.
  6. S Sanford, G Borodyansky, T Selvaggi, C Rybarski, A Shah, R Nataraj. (Aug 2018). "Discrete Visual Feedback on Short-term Retention of Learned Movements", American Society of Biomechanics, Rochester, MN.
  7. S Sanford, A Shah, G Borodyansky, V Srevatsan, R Nataraj. (Aug 2018). "Dependence of Agency and Performance on Visualized Precision Pinch Force", American Society of Biomechanics, Rochester, MN.
  8. A Shah, S Sanford, Y Chen, R Nataraj. (Aug 2018). "Role of Cognitive Agency in Reach-to-Grasp Movement Performance", American Society of Biomechanics, Rochester, MN .
Book Chapters
  1. R Nataraj. (2018). "Optimizing User Integration for Individualized Rehabilitation", Biomimetic Prosthetics, Ramana Vinjamuri, InTech.
Courses
  • BME 306 Introduction to Biomedical Engineering
  • BME 700 Seminar in Biomedical Engineering
  • BME 701-702 Selected Topics in Biomedical Engineering I-II
  • BME 800 Special Problems in Biomedical Engineering (ME)
  • BME 960 Research in Biomedical Engineering
  • CPE 900 Thesis in Computer Engineering (M.Eng.)
  • BME 556 Advanced Biomechanics
  • BME 801 Special Problems in Biomedical Engineering (PHD)