Study of Cerebral Activation During Different Rehabilitation Tasks of Lower Limb in Virtual Mirror Therapy in Healthy Subjects

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

COMPLETED

Total Enrollment

38 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-02-20

Study Completion Date

2023-04-14

Brief Summary

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The purpose of this study is to investigate the cerebral activation during visual motor simulation in healthy subjects in 3 conditions: observation (OBS), observation and imagination (OBS-IM) and observation and realization (OBS-REAL). The investigators goal is to compare cerebral activation during the three different tasks using EEG and fNIRS.

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Detailed Description

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Mirror therapy is a rehabilitation technique that has been shown to be effective in restoring upper limb motor skills in patients with stroke. However, it comes up against certain constraints of clinical use such as installation difficulties or the obligation of symmetrical bilateral work. These constraints can be limited by the use of so-called 2nd generation virtual mirror therapy technologies. It is therefore likely that these new technologies will improve the feasibility and effectiveness of mirror therapy in rehabilitation.

The brain mechanisms involved in virtual mirror therapy are not yet fully understood. EEG (Electroencephalography) and fNIRS (functional Near Infra Red Spectroscopy) are two functional method that allows to study the cerebral cortex changes during different tasks (like fMRI).

These techniques therefore makes it possible to study brain activation under more ecological conditions than fMRI and are therefore particularly suitable for exploring rehabilitation techniques.

This research aims to study and compare in healthy subjects, using EEG and fNIRS, the brain regions involved in three tasks using a virtual mirror therapy device (IVS4 apparatus ; Dessintey, France) implying lower limb control.

The protocol has 3 conditions :

observation (OBS), observation and imagination (OBS-IM) and observation and realization (OBS-REAL).

The order of the 3 conditions will then be randomized to avoid potential biases linked to the sequence of conditions.

The EEG recording will used the 32 channels ENOBIO apparatus. The fNIRS will used the Brite MKII apparatus

Conditions

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Healthy

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Young

40 right handed healthy subject aged between 18 and 40

Observation (OBS)

Intervention Type DEVICE

Subject is seated in a chair facing IVS4. He places his right lower under the screen. The flexion / extension movement of the ankle at a frequency of 0.5 Hz is then recorded. Then for the "mirror" effect the software reverses the recorded movement, the lower right limb becomes the lower left limb on the screen.

The subject only observe the movement on the screen during the recordings. The subject does not produce any movement.

Observation and imagination (OBS-IM)

Intervention Type DEVICE

Subject is seated in a chair facing IVS4. He places his right lower under the screen. The flexion / extension movement of the ankle at a frequency of 0.5 Hz is then recorded. Then for the "mirror" effect the software reverses the recorded movement, the lower right limb becomes the lower left limb on the screen.

The subject observe the movement but also imagine to realized it.

Observation and realization (OBS-REAL)

Intervention Type DEVICE

Subject is seated in a chair facing IVS4. He places his right lower under the screen. The flexion / extension movement of the ankle at a frequency of 0.5 Hz is then recorded. Then for the "mirror" effect the software reverses the recorded movement, the lower right limb becomes the lower left limb on the screen.

The subject observe the movement on the screen and realized it

Old

40 right handed healthy subject aged between 41 and 75

Observation (OBS)

Intervention Type DEVICE

Subject is seated in a chair facing IVS4. He places his right lower under the screen. The flexion / extension movement of the ankle at a frequency of 0.5 Hz is then recorded. Then for the "mirror" effect the software reverses the recorded movement, the lower right limb becomes the lower left limb on the screen.

The subject only observe the movement on the screen during the recordings. The subject does not produce any movement.

Observation and imagination (OBS-IM)

Intervention Type DEVICE

Subject is seated in a chair facing IVS4. He places his right lower under the screen. The flexion / extension movement of the ankle at a frequency of 0.5 Hz is then recorded. Then for the "mirror" effect the software reverses the recorded movement, the lower right limb becomes the lower left limb on the screen.

The subject observe the movement but also imagine to realized it.

Observation and realization (OBS-REAL)

Intervention Type DEVICE

Subject is seated in a chair facing IVS4. He places his right lower under the screen. The flexion / extension movement of the ankle at a frequency of 0.5 Hz is then recorded. Then for the "mirror" effect the software reverses the recorded movement, the lower right limb becomes the lower left limb on the screen.

The subject observe the movement on the screen and realized it

Interventions

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Observation (OBS)

Subject is seated in a chair facing IVS4. He places his right lower under the screen. The flexion / extension movement of the ankle at a frequency of 0.5 Hz is then recorded. Then for the "mirror" effect the software reverses the recorded movement, the lower right limb becomes the lower left limb on the screen.

The subject only observe the movement on the screen during the recordings. The subject does not produce any movement.

Intervention Type DEVICE

Observation and imagination (OBS-IM)

Subject is seated in a chair facing IVS4. He places his right lower under the screen. The flexion / extension movement of the ankle at a frequency of 0.5 Hz is then recorded. Then for the "mirror" effect the software reverses the recorded movement, the lower right limb becomes the lower left limb on the screen.

The subject observe the movement but also imagine to realized it.

Intervention Type DEVICE

Observation and realization (OBS-REAL)

Subject is seated in a chair facing IVS4. He places his right lower under the screen. The flexion / extension movement of the ankle at a frequency of 0.5 Hz is then recorded. Then for the "mirror" effect the software reverses the recorded movement, the lower right limb becomes the lower left limb on the screen.

The subject observe the movement on the screen and realized it

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Subjects aged 18 to 75 years
* Sufficient command of the French language to understand the instructions
* No known neurological medical history
* With social security coverage
* Right-handed subjects with a laterality test of Edinburgh QL\> 40 (Oldfield 1971)

Exclusion Criteria

* Minor subjects
* Adults under guardianship
* Adults under guardianship
* Pregnant or breastfeeding women
* Subjects who have objected to participating in the study

Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes