Neural Noise

Spinal cord stimulation and rehabilitation robotics for movement restoration in paralysis

2 min read

  • Combining spinal cord stimulation with rehabilitation robotics restores voluntary movement in paralysis, representing a synergistic approach for motor recovery.1
  • This is a high-priority clinical pathway for spinal injury BCIs.1 1

Gardner updates

  • Onward Medical’s ARC-EX exoskeleton BCI system demonstrated clinical improvement for chronic cervical spinal cord injury patients, directly relevant to rehabilitation robotics and spinal neuromodulation.2

Weekly enrichment (2026-07-20)

  • A NeuroRestore (EPFL/CHUV/UNIL) proof-of-concept in 5 individuals with spinal cord injury integrated an implanted epidural spinal cord neuroprosthesis with rehabilitation robotics, delivering well-timed electrical pulses synchronized to robotic movement to produce coordinated muscle activity during therapy.3
  • That study reported immediate and sustained muscle activation, with some participants improving voluntary movement even after stimulation was switched off, outperforming robotics-alone rehabilitation.3
  • A 2026 randomized comparison found transcutaneous spinal cord stimulation (tSCS) paired with high-dose robot-assisted gait training (RAGT) outperformed dose-matched conventional therapy plus tSCS on balance (Berg Balance Scale adjusted mean difference +7.67), Timed Up-and-Go (−10.91 s), WISCI-II (+1.26), and ASIA motor score (+7.93 points).4
  • In that trial, intramuscular EMG showed significantly higher tibialis anterior, vastus lateralis, and gastrocnemius activation with RAGT, though 10-m walk-test speed improved similarly across both arms.4
  • A first-in-human “double neural bypass” (Nature Medicine, a trial spanning more than 3 years) combined a bidirectional intracortical BCI with transcutaneous spinal cord stimulation and deep reinforcement learning in a 42-year-old man with complete C4-sensory/C5-motor tetraplegia, restoring hand movement and tactile sensation with persistent recovery.5
  • A cervical epidural spinal cord stimulation pilot (Carnegie Mellon/Pitt, Nature Medicine) in 7 chronic-stroke participants achieved an average 32% increase in arm strength after four weeks and under nine hours of movement-based training, with immediate on-stimulation gains in dexterity and reduced spasticity.6
  • ONWARD Medical’s investigational ARC-BCI (“DigitalBridge”) pairs an epidural motor-cortex BCI with its ARC-IM implanted spinal stimulator to enable thought-driven movement; by January 2026, 7 participants had been implanted, and the system holds FDA Breakthrough Device Designation (awarded 2024).7

Footnotes

  1. https://www.sciencedirect.com/science/article/pii/S1935861X26000445?dgcid=rss_sd_all ↩ ↩2 ↩3

  2. https://news.google.com/rss/articles/CBMiX0FVX3lxTE1yeVlNT3JpNnVkRHF0VkF1VjAtVlFpd3VzNFV5U01meTZIc1VzUVQwcndvZVlUb3VFLTdWdHI5TUVGVXZEUXNlbHNBNmJqTDhyd0RxckdFSFpUa0llMkpj?oc=5 ↩

  3. https://www.neurorestore.swiss/press-1/parkinson2023-8xa5a-gecy5 ↩ ↩2

  4. https://link.springer.com/article/10.1186/s12916-026-04697-z ↩ ↩2

  5. https://www.nature.com/articles/s41591-026-04498-0 ↩

  6. https://engineering.cmu.edu/news-events/news/2026/06/04-spinal-cord.html ↩

  7. https://www.biospace.com/press-releases/onward-medical-completes-two-additional-brain-computer-interface-implants-paired-with-spinal-cord-stimulation-technology-to-restore-thought-driven-movement ↩

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