Study: NCT06476587

Intervention type: OTHER
Intervention: Assessment of postural stability and active motion perception
Description: This assessment, designed to evaluate the impact of the vestibular deficit on everyday tasks, will include questionnaires and standardised clinical tests.~The questionnaires are the Fall Efficacy Scale; the Dizziness Handicap Inventory; the Oscillopsia Severity Questionnaire; the Hospital Anxiety and Depression Scale; the Hamilton Anxiety Scale; the Global Physical Activity Questionnaire; the Motion Sickness Susceptibility Questionnaire part B; and the Cambridge Depersonalization Scale.~In addition, three standardised clinical tests will be carried out: Five Times Sit to Stand Test; Tandem walking test; and Fukuda step test (50 steps).~Five specific clinical tests will also be carried out: Sit-to-stand-with-walk-and-turn; Perception of active body rotation; Perception of walking distance; Triangle Completion Task; and Gait assessment.

Intervention type: OTHER
Intervention: Assessment of postural stability and active motion perception
Description: This assessment, designed to evaluate the impact of the vestibular deficit on everyday tasks, will include questionnaires and standardised clinical tests.~The questionnaires are the Fall Efficacy Scale; the Dizziness Handicap Inventory; the Oscillopsia Severity Questionnaire; the Hospital Anxiety and Depression Scale; the Hamilton Anxiety Scale; the Global Physical Activity Questionnaire; the Motion Sickness Susceptibility Questionnaire part B; and the Cambridge Depersonalization Scale.~In addition, three standardised clinical tests will be carried out: Five Times Sit to Stand Test; Tandem walking test; and Fukuda step test (50 steps).~Five specific clinical tests will also be carried out: Sit-to-stand-with-walk-and-turn; Perception of active body rotation; Perception of walking distance; Triangle Completion Task; and Gait assessment.

Intervention type: OTHER
Intervention: Cognitive tests
Description: Four cognitive tests from the French Focus Group on Executive Functions Assessment (GREFEX) battery will be carried out: the Stroop test; the Trail Making Test; the Baddeley's dual task; and a test of Corsi's Blocks.

Intervention type: OTHER
Intervention: Eccentric axis rotation
Description: This test, also known as the unilateral centrifugation test, provides a quantitative assessment of unilateral utricular otolith function, whereas the tests currently used (vestibular evoked myogenic potential, VEMP) only provide a qualitative assessment.

Intervention type: OTHER
Intervention: Eccentric axis rotation
Description: This test, also known as the unilateral centrifugation test, provides a quantitative assessment of unilateral utricular otolith function, whereas the tests currently used (vestibular evoked myogenic potential, VEMP) only provide a qualitative assessment.

Intervention type: OTHER
Intervention: Osteodensitometry
Description: To assess the participants' bone mineral density, the reference technique of densitometry using two-photon absorptiometry will be used.

Intervention type: OTHER
Intervention: Posturography
Description: Participants' ability to maintain their balance will be assessed using measurements taken on the Synapsys platform. To standardise their position, they will have to stand on the platform with their feet apart, arms at their sides and look straight ahead. Volunteers will be asked to sit down between each trial. The surface area and length of the centre of pressure will be measured under open-eye balance conditions with and without image reading/exploration and dynamics. During this test, 9 balance assessment situations lasting approximately 1 minute each will be performed.