Balance Rehabilitation With Modified Visual Input in Patients With Neuropathy

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

RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-10-01

Study Completion Date

2026-03-01

Brief Summary

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This research focuses on the effects of rehabilitation on balance, in patients with acquired chronic demyelinating neuropathy. Rehabilitation will be performed with or without vision.

It is planned to include 40 subjects consulting for walking instability related to sensitivity disorders.

This multicenter study will take place in Paris's area. Each participant will benefit from 20 rehabilitation sessions with a Physical Therapist and 3 assessments.

Thanks to randomization, patient will be allocated in one of the 2 following groups:

* Control group, Patients will benefit from balance rehabilitation with open eyes.
* Experimental group, they will perform the same exercises while keeping their eyes closed or their vision will be obstructed by a mask or disturbed by moving luminous dots projected on the environment in darkness.

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Detailed Description

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Patients with chronic acquired demyelinating neuropathy may be referred for instability or falls when walking. Some of them have complaints of dysesthesia, paresthesia. The majority of these patients, due to the involvement of large sensory fibres, have deep and superficial sensitivity disorders (hypoesthesia or anaesthesia), which explain proprioceptive ataxia and balance disorders.

In a given situation, an individual maintains his or her balance thanks to sensory information, among which he or she may have to choose the most appropriate one for the context. A good balance control depends on the ability to select the best information, but many subjects do not have, or have lost, this ability, giving too systematically priority to the same sensory input. This is what is called sensory preferences or sensory profiles that differ from one subject to another. The most common behaviour is visual dependence.

This tendency to visual dependence has been described in different pathological situations, especially after a stroke. Research has shown that specific rehabilitation in visual deprivation can reduce visual dependence and improve balance and walking autonomy in stroke patients.

The investigators have shown in previous work that patients with acquired chronic demyelinating neuropathy have ataxic symptomatology with a visual dependence behavior, while a good sensitivity to vibration stimulation of proprioceptive pathways persists. The proprioceptive potential still present seems to be under-used.

Rehabilitation of patients with peripheral neuropathy involves many techniques, such as muscle strengthening, vibration, virtual reality, Tai chi, electrical stimulation, etc. However, some techniques, such as the use of virtual reality or visual biofeedback, tend to increase the use of the visual input, which could be detrimental to other inputs. The specific approach to balance disorders in these patients through manipulation of the visual input has, to our knowledge, not been studied. This is the objective of the study.

The main hypothesis of this research is that rehabilitation with modified visual input can, by reducing visual dependence, strengthen the proprioceptive input that still appears to be available in these patients with acquired chronic demyelinating neuropathy, despite deficits already present, and thus improve balance and walking ability.

Conditions

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Neuropathy Ataxia Proprioceptive Disorders Balance; Distorted

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Observe in patients with chronic acquired demyelinating neuropathy, the effects on balance of a rehabilitation with modified visual input (deceived visual input, or visual deprivation); compared to an identical rehabilitation of balance performed with the non-modified visual input.

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Evaluations are carried out outside the rehabilitation programme, by blind evaluators.

Study Groups

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Experimental group

Balance rehabilitation with modified visual input:

In experimental group, patients with chronic acquired demyelinating neuropathy will benefit from 20 rehabilitation sessions with a Physical Therapist and 3 assessments.

They will perform balance training with modified visual input.

Group Type EXPERIMENTAL

Balance rehabilitation with modified visual input

Intervention Type OTHER

Patients will perform the exercises alternatively: while keeping their eyes closed or their vision will be obstructed by a opaque mask or disturbed by moving luminous dots projected on the environment in a dark room without any visual reference cues.

control group

Balance rehabilitation with no modified visual input:

In control group, patients with chronic acquired demyelinating neuropathy will benefit from 20 rehabilitation sessions with a Physical Therapist and 3 assessments.

They will perform balance training with no modified visual input.

Group Type ACTIVE_COMPARATOR

Balance rehabilitation with no modified visual input

Intervention Type OTHER

Patients will perform the exercises while keeping their eyes openned

Interventions

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Balance rehabilitation with modified visual input

Patients will perform the exercises alternatively: while keeping their eyes closed or their vision will be obstructed by a opaque mask or disturbed by moving luminous dots projected on the environment in a dark room without any visual reference cues.

Intervention Type OTHER

Balance rehabilitation with no modified visual input

Patients will perform the exercises while keeping their eyes openned

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients with chronic demyelinating acquired neuropathy
* Age ≥ 18 years.
* Patients able to walk 20 meters without human assistance at least indoors with or without technical assistance.
* Patients with complaints such as discomfort, walking instability related to sensitivity disorders.
* Patients being clinically stable for at least 2 months, regardless of ongoing treatments.
* Patients who have provided consent.

Exclusion Criteria

* Patients unable to walk 20 metres without technical and human assistance indoors.
* Patients with an ongoing hospitalization.
* Patients already included and participating in another intervention study.
* Patients with ongoing balance rehabilitation and continued during the REQ-PRO program in another rehabilitation centre or practice.
* Patients with ongoing acute treatment (related to polyneuropathy) started less than 2 months ago or stopped less than 2 months ago.
* Patients with scheduled surgery during the period of the patient's participation in the protocol, preventing the successful completion of the rehabilitation program and participation in assessments.
* Patients with recent surgery, in particular lower limb prosthesis (less than 1 year old) or equipment contraindicated for planned exercises such as standing kneeling positions.
* Patients with skin wounds on the foot that contraindicate rehabilitation.
* Patients with balance disorders of vestibular origin or central neurological pathology.
* Patients with a visual disability.
* Patients with a hearing impairment that prevents the patient from hearing and understanding instructions during the rehabilitation program or assessments.
* Patients with an inability to speak or understand the French language.
* Patients with cognitive or language impairments that prevent understanding of the protocol.
* Patients with a residence outside of the Paris Region (Ile de France).
* Patients with a known pregnancy.
* Patients not affiliated to a social security system (beneficiary or having a right), deprived of their right, under guardianship, curatorship, prisoner.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No