The Effect of Different Head and Trunk Positions on SVV in Healthy Individuals

Study Overview
=================
Brief Summary
-----------------
Aim: To obtain standardization data in static virtual SVV and dynamic virtual SVV tests according to different head and body positions by keeping up with developing technologies. In this way, it is planned to evaluate the treatment responses of patients who receive vestibular rehabilitation in a healthier way.

Official Title
-----------------
The Effect of Different Head and Trunk Positions on Static Virtual SVV and Dynamic Virtual SVV in Healthy Individuals: A Standardization Study

Conditions
-----------------
Virtual Reality

Intervention / Treatment
-----------------
* Diagnostic Test: SVV test


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Healthy adult volunteers Volunteers over 18 years old Exclusion Criteria: Patients with impaired cooperation Musculoskeletal or systemic presence of disease Past ear disease Patients who have experienced dizziness Presence of central nervous system pathology Patients who have used ototoxic drugs Patients whose use of glasses may cause problems (epilepsy, vision loss, etc.)

Ages Eligible for Study
-----------------
Minimum Age: 18 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
Accepts Healthy Volunteers

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Healthy volunteers<br>SVV test will be done. | Diagnostic Test: SVV test<br>* SVV test will be done with virtual reality glasses.<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Static SVV test | For commercially available VR Subjective Visual vertical(SVV), VIRTUALIS® PHYSIO VR[SVV and Dynamic SVV](Virtualis, France) was used. The bar angles are given in a random order. The system consists of glasses, computer and hand control. When patients wear their glasses, they can see only a light bar in Static SVV, and points rotating left or right on the background of the light bar in Dynamic SVV. No light can enter the glasses. The glasses have a sensor that detects the angle of the head. The starting point of the bar can be adjusted randomly to different angles by the computer. The visual background rotation rate for dynamic SVV was determined as ±30°/sec. The subject should adjust the bar in the vertical position using the right/left arrows on the controller. When verticality is confirmed by pressing the set button in the middle of the control unit, the computer records the angle of the bar and the position of the head. | 1 month | 
| Dynamic SVV test | For commercially available VR Subjective Visual vertical(SVV), VIRTUALIS® PHYSIO VR[SVV and Dynamic SVV](Virtualis, France) was used. The bar angles are given in a random order. The system consists of glasses, computer and hand control. When patients wear their glasses, they can see only a light bar in Static SVV, and points rotating left or right on the background of the light bar in Dynamic SVV. No light can enter the glasses. The glasses have a sensor that detects the angle of the head. The starting point of the bar can be adjusted randomly to different angles by the computer. The visual background rotation rate for dynamic SVV was determined as ±30°/sec. The subject should adjust the bar in the vertical position using the right/left arrows on the controller. When verticality is confirmed by pressing the set button in the middle of the control unit, the computer records the angle of the bar and the position of the head. | 1 month |