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Synchronous stimulation and monitoring of soleus H reflex during robotic body weight-supported ambulation in subjects with spinal cord injury

Ross G. Querry, PT, PhD, et al.

Figure. H reflex instrumentation with subject walking in Lokomat

We developed a new method for more accurately measuring the soleus H reflex in patients with spinal cord injury (SCI) during robotic body weight-supported treadmill walking. We used hip joint position from the Lokomat® system to acquire the soleus H reflex at specific points in the gait cycle. The method accurately synchronized H reflex stimulation in subjects with SCI during assisted walking at two different speeds. This method will help researchers study how the H reflex is altered in subjects with SCI and how robotic-assisted ambulation may affect these alterations.

Volume 45 Number 1, 2008
   Pages 175 — 186

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