The vestibular evoked muscle potentials (VEMPs) test provides information about the otolith organs and the vestibular nerves. The usefulness of VEMP responses related to the trapezius muscle in the evaluation of the vestibular system remains uncertain....
No actionable change — this is a neurophysiological mechanistic study; findings may refine understanding of trapezius-site VEMP recordings but do not yet change standard clinical VEMP protocols.
Clarifying the neurophysiological basis of trapezius-site VEMP recordings could improve the anatomical specificity and diagnostic interpretation of vestibular evoked myogenic potential testing.
- 01Investigates VEMP responses recorded from the trapezius muscle — a non-standard recording site.
- 02Compares responses under extensor vs. flexor muscle conditions to probe vestibular pathway specificity.
- 03Aims to clarify otolith organ and vestibular nerve contributions to trapezius VEMP signals.
- 04Published in The Journal of International Advanced Otology (IAO).
- 05Mechanistic findings may eventually support refinement of VEMP test protocols and recording sites.
VEMP responses can be reliably recorded over the trapezius muscle under both extensor and flexor conditions.
studypartially supportedTrapezius-site VEMP recordings reflect otolith organ and vestibular nerve function.
studypartially supported- PMID
- 42378532
- DOI
- 10.5152/iao.2024.241836.
- Journal
- The Journal of International Advanced Otology
- Publication type
- research_article
- Evidence level
- 4
- Population
- Participants undergoing VEMP testing with trapezius muscle recording in extensor and flexor conditions
- Intervention
- VEMP recording over the trapezius muscle in extensor and flexor conditions
- Comparator
- Extensor vs. flexor muscle condition within participants
Primary outcomes
VEMP response characteristics (amplitude, latency) at the trapezius under extensor and flexor conditions; Neurophysiological pathway characterization of trapezius VEMP signals