Post- Rotatory Nystagmus Test: Normative Data for Spanish Adolescents and Adults

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

163 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-04-01

Study Completion Date

2021-09-01

Brief Summary

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The vestibulo-ocular reflex is the motor response of our eyes in the opposite direction to a translational or rotational movement of our head. The post-rotational nystagmus test (PRN) assesses the integrity of this reflex, thus assessing the perception of the vestibular system. The duration of this reflex after administering this test has been widely studied in children from 2 months to 12 years and 11 months of age. However, there is a knowledge gap from that age that the present study seeks to address.

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Detailed Description

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The vestibulo-ocular reflex (VOR) is the motor response of our eyes in the opposite direction to a translational or rotational movement of our head. The post-rotational nystagmus test (PRN) assesses the integrity of this reflex, thus assessing the perception of the vestibular system. This system has an important role in our balance, stabilization of the visual field when our head moves, awareness of the position of our head in space, postural control and functions of the Autonomous Nervous System.

The duration of this reflex after administering this test has been widely studied in children from 2 months to 12 years and 11 months of age. However, there is a knowledge gap from that age that the present study seeks to address. This article aims to explore the use of the PRN test for adolescent and adults, to prove if the duration of the VOR is longer in these population than in children. It will be also recollected personal data to study whether exposure to vestibular input influences its reactivity and perception.

Conditions

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Vestibular Function Tests Nystagmus Vestibular

Study Design

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Observational Model Type

CASE_CROSSOVER

Study Time Perspective

CROSS_SECTIONAL

Interventions

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Post-rotatory nystagmus test

The test is administrated with the person sit down with cross legs at a rotatory board, with the head positioned by the examiner in 30° of forward flexion. The position was maintained by the administration of the test. The administration consist in two administrations separate by one minute. Each administration consist in rotate the person 10 times in 20 seconds (the first 10 rotations in a counterclockwise direction in 20 s and the second 10 rotations in a clockwise direction in 20 s). After each administration the examiner counts the duration of the reflex in seconds.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* People over 13 years of age.
* Spanish-speaking population.
* Signature of the informed consent.

Exclusion Criteria

* Diagnosis of a neurodevelopmental or neurological disorder.
* Being in occupational therapeutic treatment for balance or vestibular problems.
* Practice of sports in one previous hour.
* Adverse reaction to vestibular input such as vomiting, discoloration, feeling of unpleasantness or any other type of negative reaction before / during / after the administration of the NPR.

Minimum Eligible Age

13 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes