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

Optimal stimulus duration for the H reflex.

M Panizza1, J Nilsson, M Hallett

  • 1Human Motor Control Section, National Institute of Neurological and Communicative Disorders and Stroke, Maryland 20892.

Muscle & Nerve
|July 1, 1989
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

ISCEV standard for clinical visual evoked potentials (2025 update).

Documenta ophthalmologica. Advances in ophthalmology·2025
Same author

Data of the Insect Biome Atlas: a metabarcoding survey of the terrestrial arthropods of Sweden and Madagascar.

Scientific data·2025
Same author

Autoreactive T cells target peripheral nerves in Guillain-Barré syndrome.

Nature·2024
Same author

The novel collagen matrikine, endotrophin, is associated with mortality and cardiovascular events in patients with atherosclerosis.

Journal of internal medicine·2021
Same author

Older patients' recovery following intensive care: A follow-up study with the RAIN questionnaire.

Intensive & critical care nursing·2021
Same author

Exploring the role of extracellular matrix proteins to develop biomarkers of plaque vulnerability and outcome.

Journal of internal medicine·2020

Finding the optimal stimulus duration is key for recording H reflexes. Stimulus durations between 0.5 and 1 msec provide the best results for H reflex amplitude and M response relation.

Area of Science:

  • Neuroscience
  • Physiology
  • Biomedical Engineering

Background:

  • The H reflex is a valuable tool for assessing neuromuscular function.
  • Optimal stimulus parameters are crucial for accurate H reflex recording.
  • Current literature suggests varying stimulus durations for H reflex elicitation.

Purpose of the Study:

  • To determine the optimal electrical stimulus duration for recording H reflexes.
  • To analyze the impact of stimulus duration on H reflex and M response recruitment curves.

Main Methods:

  • Recruitment curves for H reflexes and M responses were analyzed.
  • H reflexes were recorded from upper and lower extremities in 10 healthy subjects.
  • Electrical stimulus durations ranged from 0.1 to 3 msec.

Related Experiment Videos

Main Results:

  • Stimulus duration significantly affected H reflex amplitude.
  • The relationship between H reflex and M response varied with stimulus duration.
  • Optimal H reflex recording was achieved with stimulus durations between 0.5 and 1 msec.

Conclusions:

  • Stimulus duration is a critical factor in H reflex amplitude and recruitment.
  • A stimulus duration of 0.5 to 1 msec is recommended for advantageous H reflex recording.
  • These findings aid in standardizing H reflex measurement techniques.