Biomaterial Database

[Muscle reflex responses to paired electrical stimulation of peripheral nerves]. 1993

M Jergelová, and F Podivinský

Ustav normálnej a patologickej fyziológie SAV v Bratislave.

Double-shock bifocal peripheral nerve stimulation with varying interstimulus intervals (ISI) was applied to healthy human subjects. Short (SLR) and long latency reflexes (LLR) from the slightly active first dorsalis interosseous muscle of the hand were recorded after an electrical conditioning stimulation of the index finger and test stimulation of the median nerve. It was found with intervals from 1 to 5 ms the size of the SLR and LLRs was smaller and unstable, possibly due to transmitter depletion at these short ISIs. With intervals of 10 ms and longer, the test responses progressively increased and were far larger than the control responses, probably due to some temporal summation with double-shock stimulation and some release of the transmitter substance after the conditioning cutaneous stimulus. (Fig. 3, Ref. 18.).

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008475	Median Nerve	A major nerve of the upper extremity. In humans, the fibers of the median nerve originate in the lower cervical and upper thoracic spinal cord (usually C6 to T1), travel via the brachial plexus, and supply sensory and motor innervation to parts of the forearm and hand.	Median Nerves,Nerve, Median,Nerves, Median
D009132	Muscles	Contractile tissue that produces movement in animals.	Muscle Tissue,Muscle,Muscle Tissues,Tissue, Muscle,Tissues, Muscle
D011930	Reaction Time	The time from the onset of a stimulus until a response is observed.	Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D012018	Reflex	An involuntary movement or exercise of function in a part, excited in response to a stimulus applied to the periphery and transmitted to the brain or spinal cord.
D004558	Electric Stimulation	Use of electric potential or currents to elicit biological responses.	Stimulation, Electric,Electrical Stimulation,Electric Stimulations,Electrical Stimulations,Stimulation, Electrical,Stimulations, Electric,Stimulations, Electrical
D004576	Electromyography	Recording of the changes in electric potential of muscle by means of surface or needle electrodes.	Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D005260	Female		Females
D006225	Hand	The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.	Hands
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man