Balance Control During Gait

NCT ID: NCT02231827

Last Updated: 2015-09-15

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 50 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2014-10-31
• Study Completion Date: 2015-03-31

Brief Summary

Gait and balance disorders are important public health problem necessitating studies to try to prevent falls. Many studies have dealt with spatiotemporal gait parameters or balance during quiet standing (posturography). Nevertheless, falls occurred predominantly during gait, and rarely during quiet standing. We have developed a tool to measure balance during gait : the braking of the center of mass (CM), a biomechanical parameter obtained from the vertical velocity of the CM recorded with a force plate.

In previous studies, we have shown that the braking of the CM was a physiological and a active mechanism, reflecting balance during gait. Unfortunately, the braking of the CM measured on a force plate provide an important intra-individual variability.

The 3D optoelectronic gait analysis system (VICON) also provide an estimation of the CM. The primary goal of this study is to compare intra-individual variability of the braking of the CM determined by a force plate or the 3D optoelectronic gait analysis system (VICON) in healthy subjects.

Conditions

Healthy

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: NONE

Study Groups

Gait analysis

Group Type: EXPERIMENTAL

Gait analysis

Intervention Type: OTHER

Subjects, barefoot and standing upright and motionless on a force plate, were instructed to walk for 10 m following a beep delivered by the experimenter. Two experimental conditions were tested: (i) the 'natural' gait condition where subjects walked normally and (ii) the 'fast' gait condition where subjects walked as fast as they could, taking large steps. Each subject performed 10 trials in each condition.

Interventions

Gait analysis

Subjects, barefoot and standing upright and motionless on a force plate, were instructed to walk for 10 m following a beep delivered by the experimenter. Two experimental conditions were tested: (i) the 'natural' gait condition where subjects walked normally and (ii) the 'fast' gait condition where subjects walked as fast as they could, taking large steps. Each subject performed 10 trials in each condition.

Intervention Type: OTHER

Other Intervention Names

- Force plate; - 3D optoelectronic gait analysis system (VICON)

Eligibility Criteria

Inclusion Criteria

• Healthy subjects
• Between 20 and 40 years old
• Effective contraception for women of childbearing age

Exclusion Criteria

• Neurological, vestibular, rheumatologic, orthopaedic disorders, which could influence gait and balance.
• Known spinal deformity
• Severe visual impairment : visual acuity less than 6/10
• Inability to stand and walk without assistance 15 meters
• Subjects without social security
• Subjects involved in another biomedical trial during this study
• Pregnant or breastfeeding women

• Minimum Eligible Age: 20 Years
• Maximum Eligible Age: 40 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

University Hospital, Rouen

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Nathalie CHASTAN, MD

Role: PRINCIPAL_INVESTIGATOR

University Hospital, Rouen

Locations

Rouen University Hospital

Rouen, , France

Countries

France

Other Identifiers

2014/058/HP

Identifier Type: -

Identifier Source: org_study_id