Study of the Effect of a Cognitive Task on Static Balance in Depressive Elderly Subjects According to the Double Task Principle

Study Overview
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Brief Summary
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This study could contribute to understanding the aggravation of balance disorders and the increased risk of falling in depressive people. It could, among other things, shed light on the impact of treatments with antidepressants on balance in treated depressive patients. Finally, it could contribute to improving the sensory-motor management of patients with a depressive syndrome.

Official Title
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Study of the Effect of a Cognitive Task on Static Balance in Depressive Elderly Subjects According to the Double Task Principle

Conditions
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Depression

Intervention / Treatment
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* Behavioral: standing with both feet
* Behavioral: descent of the platform
* Behavioral: standing on the platform, feet together and always with simultaneous performance of a task of mental count


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: In the 2 groups: General and cognitive status allowing the patient, according to the evaluation of the investigators, to take part in the study. Patients who provide written informed consent Patients covered by the national health insurance agency In the depression  group: Age ≥ 75 years, Subjects with a depressive syndrome, according to Geriatric Depression Scale criteria. Patients without treatment with antidepressants In the control group: Age ≥ 75 years, Absence of a depressive syndrome Exclusion Criteria: In the 2 groups: Presence of a disabling orthopedic disease, Presence of any chronic neurological disease (cerebrovascular accident, Parkinson's syndrome …), Presence of a psychiatric disease apart from depression in the  depression  group Presence of a vestibular disease with clinical manifestations, Presence of a non-corrected visual disorder, Existence of a progressive organ disease, Psychotropic treatment able to impair vigilance and posture, Notion of one or several falls in the preceding 6 months, Oppositional personality or low motivation, Emotional or intellectual disorder. Patients under guardianship Patients who have taken part in a therapeutic trial in the previous 30 days

Ages Eligible for Study
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Minimum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: depressive patients<br> | Behavioral: standing with both feet<br> <br> Behavioral: descent of the platform<br> <br> Behavioral: standing on the platform, feet together and always with simultaneous performance of a task of mental count<br> <br> |
| Other: nondepressed controls<br> | Behavioral: standing with both feet<br> <br> Behavioral: descent of the platform<br> <br> Behavioral: standing on the platform, feet together and always with simultaneous performance of a task of mental count<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| the difference in distance traveled by moving the center of pressure between the simple task and the dual task |  | up to 2 months |