Functional reorganization of soleus H-reflex modulation during stepping after robotic-assisted step training in people with complete and incomplete spinal cord injury

2013 ◽  
Vol 228 (3) ◽  
pp. 279-296 ◽  
Author(s):  
Maria Knikou
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
H Reflex ◽  
Reflex Modulation ◽  
Incomplete Spinal Cord Injury ◽  
Robotic Assisted ◽  
Functional Reorganization ◽  
Cord Injury

scholarly journals Soleus H-Reflex Modulation After Motor Incomplete Spinal Cord Injury: Effects of Body Position and Walking Speed

2010 ◽  
Vol 33 (4) ◽  
pp. 371-378 ◽  
Author(s):  
Chetan P. Phadke ◽  
Floyd J. Thompson ◽  
Carl C. Kukulka ◽  
Preeti M. Nair ◽  
Mark G. Bowden ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Walking Speed ◽  
Body Position ◽  
H Reflex ◽  
Reflex Modulation ◽  
Incomplete Spinal Cord Injury ◽  
Cord Injury

scholarly journals Effect of cervicolumbar coupling on spinal reflexes during cycling after incomplete spinal cord injury

2018 ◽  
Vol 120 (6) ◽  
pp. 3172-3186 ◽  
Author(s):  
R. Zhou ◽  
B. Parhizi ◽  
J. Assh ◽  
L. Alvarado ◽  
R. Ogilvie ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
H Reflex ◽  
Spinal Reflexes ◽  
Incomplete Spinal Cord Injury ◽  
Reflex Amplitude ◽  
Arm Cycling ◽  
Cord Injury ◽  
Leg Cycling ◽  
Cycling Training

Spinal networks in the cervical and lumbar cord are actively coupled during locomotion to coordinate arm and leg activity. The goals of this project were to investigate the intersegmental cervicolumbar connectivity during cycling after incomplete spinal cord injury (iSCI) and to assess the effect of rehabilitation training on improving reflex modulation mediated by cervicolumbar pathways. Two studies were conducted. In the first, 22 neurologically intact (NI) people and 10 people with chronic iSCI were recruited. The change in H-reflex amplitude in flexor carpi radialis (FCR) during leg cycling and H-reflex amplitude in soleus (SOL) during arm cycling were investigated. In the second study, two groups of participants with chronic iSCI underwent 12 wk of cycling training: one performed combined arm and leg cycling (A&L) and the other legs only cycling (Leg). The effect of training paradigm on the amplitude of the SOL H-reflex was assessed. Significant reduction in the amplitude of both FCR and SOL H-reflexes during dynamic cycling of the opposite limbs was found in NI participants but not in participants with iSCI. Nonetheless, there was a significant reduction in the SOL H-reflex during dynamic arm cycling in iSCI participants after training. Substantial improvements in SOL H-reflex properties were found in the A&L group after training. The results demonstrate that cervicolumbar modulation during rhythmic movements is disrupted in people with chronic iSCI; however, this modulation is restored after cycling training. Furthermore, involvement of the arms simultaneously with the legs during training may better regulate the leg spinal reflexes.NEW & NOTEWORTHY This work systematically demonstrates the disruptive effect of incomplete spinal cord injury on cervicolumbar coupling during rhythmic locomotor movements. It also shows that the impaired cervicolumbar coupling could be significantly restored after cycling training. Actively engaging the arms in rehabilitation paradigms for the improvement of walking substantially regulates the excitability of the lumbar spinal networks. The resulting regulation may be better than that obtained by interventions that focus on training of the legs only.

scholarly journals Robotic-Assisted, Body-Weight–Supported Treadmill Training in Individuals Following Motor Incomplete Spinal Cord Injury

2005 ◽  
Vol 85 (1) ◽  
pp. 52-66 ◽  
Author(s):  
T George Hornby ◽  
David H Zemon ◽  
Donielle Campbell
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Body Weight ◽  
Physical Therapists ◽  
Treadmill Training ◽  
Neurological Injury ◽  
Walking Ability ◽  
Incomplete Spinal Cord Injury ◽  
Robotic Assisted ◽  
Cord Injury

AbstractBackground and Purpose. Performance of therapist-assisted, body-weight–supported treadmill training (BWSTT) to enhance walking ability of people with neurological injury is an area of intense research. Its application in the clinical setting, however, is limited by the personnel and labor requirements placed on physical therapists. Recent development of motorized (“robotic”) rehabilitative devices that provide assistance during stepping may improve delivery of BWSTT. Case Description. This case report describes the use of a robotic device to enhance motor recovery and ambulation in 3 people following motor incomplete spinal cord injury. Interventions. Changes in motor impairment, functional limitations, and locomotor disability were monitored weekly during robotic-assisted BWSTT and following transition to therapist-assisted BWSTT with the assistance of one therapist. Outcomes. Following this training, 2 patients recovered independent over-ground walking and another improved his gait speed and endurance. Discussion. The use of robotic devices may assist physical therapists by providing task-specific practice of stepping in people following neurological injury.

Sign in / Sign up

Export Citation Format

Share Document