Study of the Relationship Between the Strength of Ankle Movement Muscles and Postural Parameters in Elderly Fallers: Towards New Strategies for Screening and Management

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

34 participants

Study Classification

OBSERVATIONAL

Study Start Date

2011-03-31

Study Completion Date

2016-12-31

Brief Summary

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The quality of life of elderly citizens is to a great extent related to the maintenance of independence. The risk of falling and the loss of autonomy are two frequent problems associated with ageing. Although the impact of falls on functional outcomes and morbi-mortality in the elderly is well-established, the pathophysiological mechanisms underlying these falls are poorly understood. To better assess the risk of falling, numerous studies have investigated the use of dynamic and static posturography. These studies sought to characterise populations of fallers and non-fallers using parameters from postural analysis. Nonetheless, a new concept may emerge: weakening of the ankle movement muscles may be implicated in the age-related deterioration of posture. Even though it has been shown that this decrease occurs earlier and is more severe in fallers, the direct relationship between the strength of ankle movement muscles and balance parameters in elderly fallers has not yet been established. The existence of such a relationship would make it possible on the one hand to facilitate screening for those with a risk of falling, and on the other hand to enrich our understanding of the pathophysiology of the risk of falling. The perspective would therefore be to propose programmes focused on the strengthening of these deficient muscles.

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Detailed Description

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Conditions

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Persons Who Have Experienced a Sudden Uncontrolled Fall in the Absence of Outside Factors in the 6 Months Preceding the Consultation

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Patient

BERG scale

Intervention Type OTHER

Complete the BERG balance scale

Functional tests

Intervention Type OTHER

timed up and go, Mini motor test, retropulsion test

Measurement of balance on a force platform

Intervention Type OTHER

4 trials of 30 seconds x 2 conditions (eyes open; eyes closed)

Measurement of maximal moment of the plantar flexor and dorsiflexor muscles

Intervention Type OTHER

5-second repetitions

Measurement of the moment of the plantar flexors and dorsiflexors corresponding to RMS activity during balance measurements

Intervention Type OTHER

3 10-second repetitions

Control

BERG scale

Intervention Type OTHER

Complete the BERG balance scale

Functional tests

Intervention Type OTHER

timed up and go, Mini motor test, retropulsion test

Measurement of balance on a force platform

Intervention Type OTHER

4 trials of 30 seconds x 2 conditions (eyes open; eyes closed)

Measurement of maximal moment of the plantar flexor and dorsiflexor muscles

Intervention Type OTHER

5-second repetitions

Measurement of the moment of the plantar flexors and dorsiflexors corresponding to RMS activity during balance measurements

Intervention Type OTHER

3 10-second repetitions

Interventions

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BERG scale

Complete the BERG balance scale

Intervention Type OTHER

Functional tests

timed up and go, Mini motor test, retropulsion test

Intervention Type OTHER

Measurement of balance on a force platform

4 trials of 30 seconds x 2 conditions (eyes open; eyes closed)

Intervention Type OTHER

Measurement of maximal moment of the plantar flexor and dorsiflexor muscles

5-second repetitions

Intervention Type OTHER

Measurement of the moment of the plantar flexors and dorsiflexors corresponding to RMS activity during balance measurements

3 10-second repetitions

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

Control group:

* Subjects who have provided written informed consent
* Subjects with national health insurance cover
* Subjects aged between 60 and 90 years old
* Able to understand simple instructions and exercise instructions and to provide informed consent
* with no diseases that could compromise postural abilities and ankle muscle strength.
* Subjects who have not experience a sudden uncontrolled fall in the absence of outside factors in the 6 months preceding inclusion.

Patients group

* Subjects who have provided written informed consent
* Subjects with national health insurance cover
* Subjects aged between 60 and 90 years old
* Able to understand simple instructions and exercise instructions and to provide informed consent
* Subjects who have experienced at least one sudden uncontrolled fall in the absence of outside factors in the 6 months preceding inclusion.

Exclusion Criteria

* Acute balance disorders (central vestibular syndrome, infection or toxic cause)
* Chronic vestibular disease with proven clinical repercussions
* Any severe neuro-orthopedic disease impairing balance as well as physiological impairments due to ageing Any chronic neurological disorder (stroke, Parkinson syndrome…)
* Any psychiatric disorder able to compromise participation
* Non-corrected vision disorder
* Cancer or any progressive disease
* Treatment with psychotropic agents able to impair vigilance and posture
* Patients under guardianship
* Patients with an ADL score \<3 (total of 6 points), reflecting a clinically obvious high risk of falling

Minimum Eligible Age

60 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes