Alterations of H-reflex
amplitude are normally ascribed to modifications in alpha motoneuron excitability and/or changes in presynaptic inhibition (PSI) of primary muscle spindle afferents (Zehr, 2002).
In patients with CP, the neural modulation of soleus H-reflex
suppression was proposed as the mechanism accounting for the improvement in functional gait pattern after treadmill training therapy .
In addition, SS may induce reduction of the H-reflex
amplitude, decreasing spinal reflex excitability and reducing stretch reflex activation in MTU (Avela et al., 199).
Conduction velocities, Compound Muscle Action Potentials, F-waves and H-reflex
- Driving Speed Measurement Program Package (NCV, MCV, F-wave, H-Reflex
, Blink Reflex, Repetitive Stimulation),
Another hypothesis that supports our results concerns the Hoffmann-reflex (H-reflex
as a tool in neurophysiology: its limitations and uses in understanding nervous system function.
In two of the 3 successfully conditioned subjects, the conditioned MEP increase consisted of within-session task-dependent adaptation and cumulative long-term change, similar to previous studies of H-reflex
operant conditioning [34, 37, 38].
The present study has been undertaken to measure the NCV in the proximal segment of the spinal monosynaptic reflex (H-reflex
Depression of the Hoffman reflex (H-reflex
) is used to examine alpha motor neuronal presynaptic influences during exercise, vibration, fatigue, and recovery in response to either a short term or long term intervention [1-4].
Latency of the soleus H-reflex
was normal, and reciprocal suppression by dorsal flexion of the foot remained.
is used to study the effects of vibration on MN pool excitability (5-7).