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Related Experiment Videos

[Long-loop muscle reflexes with a transcortical loop--mechanisms and practical applications].

F Podivinský1, M Jergelová

  • 1Ustavu normálnej a patologickej fyziológie CFV SAV v Bratislave.

Bratislavske Lekarske Listy
|March 1, 1990
PubMed
Summary

Long latency reflexes, studied via digital nerve stimulation, show potential for diagnosing central nervous system disorders and aiding motor rehabilitation. Abnormalities in these reflexes offer insights into conditions like hypertension and focal brain lesions.

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Recovery functions of short and long latency reflexes in hand muscles evoked by paired stimulation of peripheral nerves.

Electromyography and clinical neurophysiology·1993

Area of Science:

  • Neuroscience
  • Electrophysiology
  • Motor Control

Context:

  • Investigating long latency reflexes (LLRs) evoked by digital nerve stimulation.
  • Analyzing LLRs recorded from the first dorsal interosseous muscle (mean latency 50 ms).
  • Exploring supraspinal modulation of H-reflex excitability through various stimuli.

Purpose:

  • To provide evidence for the existence of a transcortical loop.
  • To establish LLRs as a valuable tool for electrophysiological diagnosis and rehabilitation.
  • To characterize physiological changes in LLRs in healthy subjects and CNS disorder patients.

Summary:

  • LLRs recorded from the first dorsal interosseous muscle suggest a transcortical loop.
  • Abnormalities in LLR facilitation and late inhibition were observed in specific neurological conditions.

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  • The study characterized LLRs in healthy individuals and patients with central nervous system disorders.

    • Impact:

    • The LLR method is beneficial for diagnosing central nervous system disorders.
    • This technique supports stimulatory therapeutic rehabilitation and motor reeducation.
    • The method forms the basis for diagnostic tests detecting cerebral dysfunction in conditions like hypertension and focal brain lesions.