What Happened
A joint research team from Brown University, Rhode Island Hospital, and VA Providence Healthcare published a groundbreaking study in Nature Biomedical Engineering. They report that electrical stimulation placed above and below the injury site helped participants with complete spinal cord injury regain both muscle control and sensory awareness of their legs while walking on a treadmill.
How It Worked
Participants—three individuals who had lost all leg movement and sensation—received electrode implants both above and below their spinal cord lesions. This unique dual-stimulation method achieved:
- Below-lesion stimulation: Enabled muscle activation, letting participants control leg movement.
- Above-lesion stimulation: Restored sensory feedback, so participants could feel their leg position in space.
With therapist assistance, participants actively walk on a treadmill, monitoring both motion and sensation.
Why It’s A Big Deal
- It’s the first-ever demonstration of simultaneous restoration of movement and sensation in people with complete spinal cord injuries.
- This represents a major leap toward rebuilding the sensorimotor loop—the combined system of movement and sensory perception.
- The innovation bridges a critical gap between neurological signaling above and below the injury.
What the Lead Researchers Said
“This is an important step toward the goal of fully bridging the gap created by a spinal lesion,”
— David Borton, Associate Professor of Engineering, Brown University
Real-world Impact
- This trial shows how next-gen walking technologies can move beyond mere muscle activation, adding meaningful sensory awareness.
- It paves the way for more natural, coordinated movement, which is vital for regaining independence.
- The results open new possibilities for commercial assistive devices and rehabilitation systems focused on both function and sensory experience.
Looking Ahead
The research team plans to:
- Expand trials to more participants
- Track long-term gains in balance and gait
- Explore translating this method into portable or wearable systems — key for use outside the lab
📎 Source “Spinal stimulation above and below injury restores leg movement and sensory feedback in clinical trial,” MedicalXpress, March 11, 2026.
Read the full article here[medicalxpress.com]
