Robotic trunk perturbation magnitude affects standing postural responses in individuals with motor complete spinal cord injury receiving epidural stimulation.

ABSTRACT: After a severe spinal cord injury (SCI), the human spinal circuitry receiving epidural stimulation can generate lower limb postural responses to sensory inputs associated with trunk perturbation. Here, we assessed the effects of different trunk perturbative forces on standing postural responses in six individuals with chronic, motor complete SCI receiving epidural stimulation to facilitate standing. The robotic upright stand trainer (RobUST) provided constant assistance for pelvic control and delivered precise trunk perturbations with different magnitudes (10 ± 4%BodyWeight (BW) -Low, 14 ± 4%BW -Mid, and 18 ± 4%BW -High) and directions (left, right, front, back). Trunk excursion, ground reaction forces (GRF), and electromyography (EMG) amplitude were assessed. Perturbation magnitude signif

SUBMITTER: Rejc E 

PROVIDER: S-EPMC12852700 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature