Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Neurography: late responses.

Christian Bischoff1

  • 1Department of Neurology and Clinical Neurophysiology, Technische Universität München, Möhlstrasse 28, D-81675 München, Germany. christian.bischoff@neuro.med.tu-muenchen.de

Muscle & Nerve. Supplement
|July 13, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Association between continuous device-based physical activity monitoring over six months and cardiorespiratory, metabolic and body composition outcomes in post-surgery cancer survivors - An observational cohort analysis within a randomized controlled trial (CRBP-TS Study).

BMC sports science, medicine & rehabilitation·2025
Same author

Effect of Multimodal App-Based Interventions on Glycemic Control in Patients With Type 2 Diabetes: Systematic Review and Meta-Analysis.

Journal of medical Internet research·2025
Same author

Effects of postoperative physical exercise rehabilitation on cardiorespiratory fitness, functional capacity and quality of life in patients with colorectal, breast, and prostate cancer - a systematic review and meta-analysis.

Journal of cancer research and clinical oncology·2024
Same author

[Diagnostics and treatment of hourglass-like nerve constrictions and torsions in neuralgic amyotrophy].

Der Nervenarzt·2023
Same author

Impact of home-based training and nutritional behavior on body composition and metabolic markers in cancer patients: data from the CRBP-TS study.

Frontiers in nutrition·2023
Same author

Effect of home-based online training and activity feedback on oxygen uptake in patients after surgical cancer therapy: a randomized controlled trial.

BMC medicine·2023

Incorporating late responses like F waves and H reflexes into nerve conduction studies enhances diagnostic value. These muscle action potentials offer crucial insights into demyelinating neuropathies and peripheral nerve lesions.

Area of Science:

  • Neurophysiology
  • Clinical Electromyography
  • Neurology

Background:

  • Routine nerve conduction velocity (NCV) studies are fundamental in diagnosing neurological disorders.
  • The diagnostic yield of NCV can be significantly improved by analyzing late responses.
  • Late responses, including F waves, H reflexes, and intermediate late discharges, provide unique clinical information.

Purpose of the Study:

  • To describe the techniques for eliciting various late responses.
  • To outline the physiological and pathological occurrence of these responses.
  • To highlight the clinical implications and diagnostic utility of late responses in neurophysiological assessments.

Main Methods:

  • Detailed description of electrophysiological techniques to elicit F waves, H reflexes, and intermediate late discharges.

Related Experiment Videos

  • Analysis of the origins and configurations of different late responses.
  • Correlation of late response findings with specific neurological conditions.

    • Main Results:

    • F waves, originating from alpha-motor neuron recurrent discharges, are valuable for diagnosing demyelinating neuropathies and proximal peripheral nerve lesions.
    • H reflexes, analogous to the stretch reflex, are primarily useful in sacral plexopathies, S1 radiculopathy, and polyneuropathies.
    • Intermediate late discharges, including A waves, can indicate early signs of acute inflammatory demyelinating neuropathy, such as Guillain-Barré syndrome.

    Conclusions:

    • The inclusion of late responses substantially increases the meaningfulness and diagnostic accuracy of routine conduction velocity studies.
    • Understanding the distinct characteristics and origins of late responses is critical for accurate clinical interpretation.
    • Late responses serve as important electrodiagnostic markers for a range of peripheral nervous system disorders.