- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00223353
Quantitative Gait Analysis for Clinical Decision Making
The overall purpose of this study is to develop an improved gait analysis system for the real time acquisition, calculation and interpretation of joint kinematic and kinetic information using linked segment body model animation to display and visually depict deviations from normal motion and joint function.
Patients referred to the laboratory for clinical gait analysis are invited to participate in the project. If interested, subjects are informed by a study investigator of the study goals, procedures, risks and any benefits. A study investigator is responsible for obtaining informed consent. Data from normal subjects are used to establish a normative database. Data from other subjects contributes to the relevant databases of different disorders.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The overall purpose of this study is to develop an improved gait analysis system for the real time acquisition, calculation and interpretation of joint kinematic and kinetic information using linked segment body model animation to display and visually depict deviations from normal motion and joint function.
Subjects will be studied using the standard protocol used for patient evaluations in the Rehabilitation Medicine Human Motion Laboratory (GBO13 V AH). The standard protocol includes the routine collection of kinematic data, kinetic data, foot pressure data and, in selected cases, electromyography information. All collected raw data will ultimately be processed for relevant biomechanical parameters and utilized to build either a Normative Database or Non-Normative Database from which selected cases maybe extracted for teaching purposes, pilot data or software development. The project is not designed to test specific hypothesis and as such statistical analysis are not planned.
To acquire kinematics data, infrared reflective markers are taped over the joints of the lower extremities, trunk, and arms. The reflective markers are used in conjunction with the optoelectronic kinematic motion analysis system (Vicon) to allow acquisition of 3D motion data for the limb and trunk segments of subjects. Joint kinetics are determine from ground reaction forces measured by force plates embedded into the floor of the gait laboratory and requiring no specific subject setup. Foot pressure data is obtained by Fscan. Mylar pressure sensitive strips are placed in the shoe or residual limb. The strip is connected to a datalogger and battery pack that will be put on a belt and worn over the shoulder or on the waist. When electromyographic data is required, surface electrodes are placed over the motor point regions of selected muscles of the lower extremities.
After placement of markers and recording electrodes, the subjects will be instructed to walk down the gait lab runway over the force platform. Simultaneous kinematic, EMG and force plate data is collected. Between 3 and 10 strides of data are collected depending on the degree of variability in the gait pattern. When assistive devices ( canes etc.) or orthotic devices are used, the subject may be asked to ambulate with and without the gait aid.
Since the patients recruited for this study will have abnormalities in their gait, the most significant risk is falling. Therefore, subjects will be screened to ensure that they can ambulate independently over level ground. During testing, standby assistance will be present to help subjects in cases of balance loss. The risks for normal subjects are negligible.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
-
-
Texas
-
San Antonio, Texas, United States, 78229
- South Texas Veterans Healthcare System
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Since it is desirable to include the spectrum of gait disorders that are typically encountered in clinical practice, inclusion/exclusion criterion for patients are limited.
Exclusion Criteria:
- Patients must be able to walk independently with or without assistive devices.
- Normal subjects must have no history of neuromuscular or musculoskeletal disorders that interfere with ambulation.
Study Plan
How is the study designed?
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Lower Limb Amputee
|
Gait Analysis.
|
Amputee and Normals and Clinical Case Study
Amputee: Lower limb below/above knee amputee Normals: Health adult Clinical Case Study: Individual case studies |
Gait Analysis.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Gait Parameters
Time Frame: Not a clinical trial. Study closed to enrollment.
|
Not a clinical trial. Study closed to enrollment.
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Balance
Time Frame: Not a clinical trial. Study closed to enrollment.
|
Not a clinical trial. Study closed to enrollment.
|
Collaborators and Investigators
Investigators
- Principal Investigator: Nicolas Walsh, MD, The University of Texas Health Science Center at San Antonio
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 978-0011-149
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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