Reflex inhibition of cutaneous and muscle vasoconstrictor neurons during stimulation of cutaneous and muscle nociceptors.

Reflex inhibition of cutaneous and muscle vasoconstrictor neurons 1 during stimulation of cutaneous and muscle nociceptors

The effect of cutaneous mechanical stimulations of lateral plantar surface on the excitability of ipsilateral and contralateral motoneurons

Mechanoreceptors of foot sole likely contribute in the reflex regulations. Stimulation of these receptors in the lateral aspect of the foot is corresponded to the lateral plantar division of the tibial nerve. Therefore, it was hypothesized that repetitive low threshold afferents stimulation would have an inhibitory effect on the soleus H-reflexes. Methods: Sixteen normal subjects voluntarily...

Evaluation of H-reflex recruitment curve after application of TENS on the desensitised skin of vertebral column

Electrical stimulation of neuromuscular system has been used in a variety of research and therapeutic applications. Although tri-polar transcutaneous electrical stimulation (TENS) is commonly used to change motoneuron excitabi1ity, but the effect of TENS on synaptic activities through dorsal column stimulation or cutaneous pathways is unknown. So, the aim of this research study was to determine...

Changes in segmental and motor cortical output with contralateral muscle contractions and altered sensory inputs in humans.

Motor or sensory activity in one arm can affect the other arm. We tested the hypothesis that a voluntary contraction can affect the motor pathway to the contralateral homologous muscle and investigated whether alterations in sensory input might mediate such effects. Responses to transcranial magnetic stimulation [motor-evoked potentials (MEPs)], stimulation of the descending tracts [cervicomedu...

Differential effects of plantar cutaneous afferent excitation on soleus stretch and H-reflex.

Previous studies have demonstrated that plantar cutaneous afferents can adjust motoneuron excitability, which may contribute significantly to the control of human posture and locomotion. However, the role of plantar cutaneous afferents in modulating the excitability of stretch and H-reflex with respect to the location of their excitation remains unclear. In the present study, it was hypothesize...