Posturography as Biomarker of Oculomotor and Postural Control Integration
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Subjects will undergo computerized dynamic posturography (CDP) testing using the extended modified Clinical Testing of Sensory Integration in Balance (ext_mCTSIB) protocol: the subjects will be required to stand on a hard or the compliant surface in a comfortable posture, feet shoulder width, with eyes open or closed, arms to the side and free to move, gazing forward, and breathing normally, with head straight, turned right or left, flexed or extended. This testing will be used to determine the health status of the subjects.
Then a sequence of tests will be performed (they could be done in different days to avoid fatiguing the subject): each sequence will comprise of a baseline test in one of the ext_mCTSIB testing conditions and a subsequent test in the same conditions but with an oculomotor additional task, such as gazing in a specific direction other than straight, performing saccades in different directions, at different speed and using different paradigms (prosaccades, antisaccades, to a remembered target, gap saccades, …), following a target moving on the screen at different speed and in different directions, receiving an optokinetic stimulation in different directions and at different speeds. Video recordings of the eyes movement may be done to make sure that the subject is actually moving the eyes, to verify that the observers are well trained to detect and count the saccadic movements, as well as to obtain quantitative information regarding the eye movements per se.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Victoria
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Hampton, Victoria, Australie, 3188
- Carrick Institute for Graduate Studies
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Georgia
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Atlanta, Georgia, États-Unis, 30339
- Carrick Institute for Graduate Studies
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Self assessed healthy subjects
Exclusion Criteria:
- subjects suffering from pathology known to affect balance
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Science basique
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: subjects
participant undergoing posturographic evaluation
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subjects will undergo CDP testing using one of the ext_mCTSIB tests without (baseline) and with oculomotor task
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Stability Score
Délai: immediately after data collection
|
The Stability Score (calculated as percentage ratio of the actual sway and the theoretical limit of stability) will be used to investigate if there is any difference between the test without and with oculomotor task.
Statistical tools such t-tests and correlation coefficients will be used to assess if there is a difference between the two tests
|
immediately after data collection
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
average velocity moment [mm^2/s]
Délai: immediately after data collection
|
The average velocity moment (calculated as as the product of sway velocity path length) will be used to investigate if there is any difference between the test without and with oculomotor task.
Statistical tools such t-tests and correlation coefficients will be used to assess if there is a difference between the two tests
|
immediately after data collection
|
|
sway path length [mm]
Délai: immediately after data collection
|
The sway path length (the distance traveled during the test) will be used to investigate if there is any difference between the test without and with oculomotor task.
Statistical tools such t-tests and correlation coefficients will be used to assess if there is a difference between the two tests
|
immediately after data collection
|
|
frequency content [Hz]
Délai: immediately after data collection
|
The frequency content (calculated using FFT) will be used to investigate if there is any difference between the test without and with oculomotor task.
Statistical tools such t-tests and correlation coefficients will be used to assess if there is a difference between the two tests
|
immediately after data collection
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Paul Noone, PhD, Carrick Institute for Graduate Studies
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Autres numéros d'identification d'étude
- CI-IRB-20160321002
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
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