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Effects of Two Different Types of Ankle Foot Orthoses on Gait Outcomes in Patients With Subacute Stroke.

Primary Purpose

Stroke, CVA, Hemiplegia

Status
Completed
Phase
Not Applicable
Locations
United States
Study Type
Interventional
Intervention
Posterior Leaf spring AFO
Double adjustable AFO
Sponsored by
Texas Woman's University
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Stroke focused on measuring foot drop, Subacute stroke, AFO, gait symmetry, Gait endurance

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Diagnosed with first time unilateral stroke
  • 4 - 20 weeks post-stroke onset
  • resulting in hemiparesis with foot drop

Exclusion Criteria:

  • Inability to receive a double adjustable AFO through their insurance
  • unable to follow two steps commands
  • unable to ambulate 20 feet with or without assistive device with a minimum level of assistance of contact guard assistance
  • diagnosis of cerebellar stroke
  • non ambulatory prior to stroke onset

Sites / Locations

  • Baylor Institute for rehabilitation

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Experimental

Arm Label

PLS AFO first then DA AFO

DA AFO first then PLS AFO

Arm Description

Participants will be assigned to practice with Posterior Leaf spring AFO for a week, then they will be assigned to practice with Double adjustable AFO for another week.

Participants will be assigned to practice with Double adjustable AFO for a week, then they will be assigned to practice with Posterior Leaf spring AFO for another week

Outcomes

Primary Outcome Measures

Gait Endurance
6 Minute Walk test (6MWT) to assess gait endurance using DA AFO and PLS AFO
Gait Endurance
6MWT to assess gait endurance

Secondary Outcome Measures

Gait Symmetry
Using GAITRite for Self Selected Velocity (SSV) and Fast paced Velocity (FPV) walk Step symmetry was calculated as the ratio of affected step length over unaffected step length. Step symmetry was calculated for Self Selected Velocity (SSV) and Fast paced Velocity (FPV)
Gait Velocity SSV and FPV
using GAITRite for Self selected velocity (SSV)walk and fast paced velocity (FPV) walk

Full Information

First Posted
February 1, 2016
Last Updated
February 14, 2020
Sponsor
Texas Woman's University
Collaborators
Baylor Research Institute
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1. Study Identification

Unique Protocol Identification Number
NCT02693834
Brief Title
Effects of Two Different Types of Ankle Foot Orthoses on Gait Outcomes in Patients With Subacute Stroke.
Official Title
Effects of Two Different Types of Ankle Foot Orthoses on Gait Outcomes in Patients With Subacute Stroke.
Study Type
Interventional

2. Study Status

Record Verification Date
November 2019
Overall Recruitment Status
Completed
Study Start Date
January 2016 (undefined)
Primary Completion Date
April 2018 (Actual)
Study Completion Date
April 2018 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Texas Woman's University
Collaborators
Baylor Research Institute

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
PURPOSE: The purpose of this study will be to identify whether patients in the subacute stage of stroke, who demonstrate foot drop, will have better gait outcomes when using a Double Adjustable AFO, or a Posterior Leaf Spring AFO. A secondary purpose will be to determine whether one week of practice significantly changes gait outcomes with either of the AFO conditions. INCLUSION CRITERIA: Twenty participants over the age of 18, of any gender and ethnicity, diagnosed with first time unilateral stroke, 4 - 20 weeks post-stroke onset, resulting in hemiparesis with foot drop will be recruited for this study. EXCLUSION CRITERIA: Not able to receive a double adjustable AFO through their insurance Unable to follow two steps commands Unable to ambulate 20 feet with or without assistive device with a minimum level of assistance of contact guard assistance. Cerebellar Stroke Inability to ambulate prior to stroke receiving chemotherapy at the time of study OUTCOME MEASURES: Six Minute walk test Gait Symmetry and Gait velocity measured with GAITRite for self paced velocity walk and fast paced velocity walk. DATA COLLECTION: Data will be collected three times over two weeks period. First Visit: Demographics, Fugl-Meyer Lower Extremity Assessment of sensorimotor function, Mini Mental State Examination 6MWT and GAITRite measurements using Both types of AFO in a random order. Afterwards participant will be given one type of AFO (randomly selected) to practice walking for a week. Second Visit: 6MWT and GAITRite measurements using the type of AFO they were practicing with. Then the other type of AFO will be given to practice walking for a week. Third Visit: 6MWT and GAITRite measurements using the second type of AFO that they were practicing with the week prior. Patient will be asked which type of AFO they prefer to use.
Detailed Description
Introduction: Stroke is a leading cause of death and disability in the world today. About 795,000 people are diagnosed with stroke yearly in the United States. The annual cost of stroke from medical services and disability in our nation is $ 38.6 billion dollars. Gait rehabilitation is an important aspect of neurorehabilitation with focus on attaining the most functional and symmetrical gait to prevent falls from faulty gait mechanics, and to prevent sedentary life styles and associated comorbidities. Ankle foot orthoses (AFOs) are commonly prescribed in patients with stroke to address ankle and knee instabilities and to restore a normal and safe walking pattern.The effectiveness of AFOs on various gait parameters has been reported in patients with stroke, but mostly during the chronic stages of recovery. Systematic analyses have shown that use of various types of ankle foot orthoses improve walking impairments and balance, reduce energy costs, and improve knee and ankle kinematics in people in the chronic stage of stroke recovery, greater than 6 months since the onset of stroke. It is reported that the majority of the gait improvements occur within the first 6 months following the onset of stroke. However, a limited number of studies have investigated the effects of AFOs within six months of stroke onset. Three reported studies have investigated the effects of using an AFO compared to not using an AFO within 6 months following onset of stroke. Rao et al found that the use of an AFO significantly improved gait velocity, cadence and step length on the affected and unaffected side. Hyun et al. found that using an AFO significantly improved VO2 peak and 6 minute walk test scores . Carse et al showed significant improvement in walking velocity, average step length and cadence with use of AFO. There is only one reported study which looked at the effects of using two different types of AFOs during the subacute stage of stroke, less than 6 months following onset. Results of this study showed that gait speed and knee and ankle control were significantly higher in the Chignon AFO group compared to the polypropylene AFO group. Additionally, participants in the Chignon AFO group had significantly lower spasticity than those in the polypropylene AFO group. In a recent case series report, investigators observed that using a custom Double Adjustable AFO during the early stages of recovery after stroke resulted in more typical muscle activation patterns, gait endurance and velocity, and near normal symmetry during gait without an assistive device or an AFO in three participants. The use of this type of AFO for gait rehabilitation following stroke in the subacute stages has not been thoroughly studied. Statement of the Problem Patients with stroke resulting in hemiparesis and foot drop are affected by gait impairments such as poor symmetry, decreased velocity, and decreased endurance. AFOs have been shown to be an effective intervention for improving gait parameters in individuals who are in the chronic stage of stroke recovery. Although, the majority of gait improvements occur within six months of stroke, the effect of early bracing with different types of AFOs on gait outcomes has not been investigated thoroughly. Purpose of the study: The purpose of this study will be to identify whether patients in the subacute stage of stroke, who demonstrate foot drop, will have better gait outcomes when using a Double Adjustable AFO, or a Posterior Leaf Spring AFO. A secondary purpose will be to determine whether one week of practice significantly changes gait outcomes with either of the AFO conditions. Research Hypotheses The research hypotheses of this study are as follows: There will be a difference in gait endurance measurements, gait symmetry measurements and gait velocity measurements at baseline when using custom Double Adjustable AFO compared to a PLS AFO in patients in subacute stage of stroke. There will be a difference in gait endurance measurements, gait symmetry measurements and gait velocity measurements after one week of practice when using custom Double Adjustable AFO compared to a PLS AFO in patients in subacute stage of stroke. After a week of practice, there will be a difference in gait endurance measurements, gait symmetry measurements and gait velocity measurements compared to baseline measurements, when using either custom Double Adjustable AFO or a PLS AFO in patients in subacute stage of stroke. Participants Twenty participants over the age of 18, of any gender and ethnicity, diagnosed with first time unilateral stroke, 4 - 20 weeks post-stroke onset, resulting in hemiparesis with foot drop will be recruited. The number of participants was estimated based on previously reported studies. Hyun et al found significant differences in gait endurance measured by 6MWT when using AFO compared to using no AFO with 15 participants in a similar study. In another study by Carse et al, gait velocity and gait symmetry were found to be significantly better with 8 participants.Therefore, for our study, the potential participant number was projected as 20. Participants will be recruited through a sample of convenience from Baylor Institute of Rehabilitation locations and through word of mouth. The physical therapists at these locations will be given a brief description of the proposed study and will be asked to screen for potential participants. Participants who meet the inclusion criteria and possess none of the exclusion criteria will be asked to volunteer for the study. Each participant will read or be read their rights as human subjects and asked to sign the informed consent approved by the Institutional Review Boards of both Baylor Health Care System and Texas Woman's University prior to enrollment in this study. A Mini Mental State Examination (MMSE) will be performed to determine whether the participant has the cognitive ability to sign the informed consent. Participants will be scheduled to do data collection on the day they receive their custom double adjustable AFO at Baylor Institute for Rehabilitation, Frisco location. Procedures:All measurements will be obtained from each participant during three testing sessions and by only one researcher to avoid inter tester reliability issues. On the first measurement day, the primary investigator will collect demographic data including age, height, weight, leg length measurements on each side, and Fugl-Meyer Lower Extremity Assessment of sensorimotor function. Then the gait outcomes will be measured using one of the two AFO conditions in random order. The participant will select the order of AFO condition by drawing out of a hat. Randomization without replacement will be used. Once the order of AFO wearing has been determined, data will be collected in the randomly selected order. Participants will be allowed to use any type of assistive device of their choice, but the same device will be used for all conditions. First, the 6MWT will be administered with the participant wearing the first randomized AFO. Participants will be asked to ambulate as far as possible in 6 minutes at a self-selected walking velocity through a well-lit indoor corridor. A five minute seated resting will be provided. Next, gait symmetry and gait velocity measurements will be obtained using the GAITRite system. Participants will be given a practice trial walk prior to beginning of the testing. Participants will be asked to walk at their comfortable self-selected walking velocity along the walkway. They will begin walking three meters from the start of the walkway and will stop walking two meters past the end of the walkway. The beginning and end of the walking area will be marked with red tape for visibility. The verbal instruction will be "Please walk from this red line to that red line at your comfortable speed safely". A second personnel will be walking close to the participant outside of the walkway to ensure safety. After a five minute sitting break, participant will be asked to walk as fast as they can safely. The verbal instruction will be "Please walk from this red line to that red line as fast as you can safely". The GAITRite system will be able to capture both gait symmetry and gait velocity measurements with the same walk. Three trials will be performed of the self-selected velocity walk and fast paced velocity walk. The calculated mean of the three trials will be used for data analysis. After a 10 minute seated rest break, the second AFO condition will be used and measurements will be repeated in the same order described above. To assess the effects of practice on the gait measures, AFO's will be randomized for practice. Participants will be randomized for which AFO they will wear first. Then the participant will be provided with the selected type of AFO to practice with for the following week using a prescribed wearing schedule. At the end of the one-week practice time, the primary investigator will obtain the same measurements obtained at baseline with the participant wearing the type of AFO that was used to practice the week before. The same testing conditions and order of testing that were used at baseline will be employed. Once measurements are completed, the participant will be provided with the second type of AFO and will be asked to wear for one week using the same prescribed wearing schedule as before. Final measurements will be taken after completion of the one-week practice using the second type of AFO with the same testing conditions and orders. At the conclusion of testing each participant will be asked which AFO they will prefer to use. Data Analysis : Descriptive statistics will be calculated for all demographic data including age, height, weight, time since onset Fugl Meyer lower extremity assessment score and AFO preference. Differences in gait endurance will be analyzed using a 2x2 repeated measures ANOVA Differences in gait symmetry, and gait velocity between the two AFO conditions and two practice conditions will be analyzed using two separate 2x2 repeated measures MANOVA. If assumption of sphericity is not met, Greenhouse-Geisser statistic will be used. An alpha level of .05 will be used to determine significance of differences, with a Bonferroni correction applied as needed to protect against Type I error.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Stroke, CVA, Hemiplegia, Hemiparesis, Foot Drop
Keywords
foot drop, Subacute stroke, AFO, gait symmetry, Gait endurance

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Crossover Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
23 (Actual)

8. Arms, Groups, and Interventions

Arm Title
PLS AFO first then DA AFO
Arm Type
Experimental
Arm Description
Participants will be assigned to practice with Posterior Leaf spring AFO for a week, then they will be assigned to practice with Double adjustable AFO for another week.
Arm Title
DA AFO first then PLS AFO
Arm Type
Experimental
Arm Description
Participants will be assigned to practice with Double adjustable AFO for a week, then they will be assigned to practice with Posterior Leaf spring AFO for another week
Intervention Type
Device
Intervention Name(s)
Posterior Leaf spring AFO
Intervention Description
Posterior Leaf Spring AFO is an over the shelf polypropylene ankle foot orthosis to assist foot drop.
Intervention Type
Device
Intervention Name(s)
Double adjustable AFO
Intervention Description
Double adjustable AFO is a custom AFO with double action metal upright joints
Primary Outcome Measure Information:
Title
Gait Endurance
Description
6 Minute Walk test (6MWT) to assess gait endurance using DA AFO and PLS AFO
Time Frame
at baseline
Title
Gait Endurance
Description
6MWT to assess gait endurance
Time Frame
1 week of practice with DA AFO and with PLS AFO randomly
Secondary Outcome Measure Information:
Title
Gait Symmetry
Description
Using GAITRite for Self Selected Velocity (SSV) and Fast paced Velocity (FPV) walk Step symmetry was calculated as the ratio of affected step length over unaffected step length. Step symmetry was calculated for Self Selected Velocity (SSV) and Fast paced Velocity (FPV)
Time Frame
at baseline,1 week with DA AFO, 1 week with PLS AFO
Title
Gait Velocity SSV and FPV
Description
using GAITRite for Self selected velocity (SSV)walk and fast paced velocity (FPV) walk
Time Frame
at baseline,1 week with DA AFO, 1 week with PLS AFO

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Diagnosed with first time unilateral stroke 4 - 20 weeks post-stroke onset resulting in hemiparesis with foot drop Exclusion Criteria: Inability to receive a double adjustable AFO through their insurance unable to follow two steps commands unable to ambulate 20 feet with or without assistive device with a minimum level of assistance of contact guard assistance diagnosis of cerebellar stroke non ambulatory prior to stroke onset
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Priya Karakkattil, MS
Organizational Affiliation
Texas Woman's University
Official's Role
Principal Investigator
Facility Information:
Facility Name
Baylor Institute for rehabilitation
City
Frisco
State/Province
Texas
ZIP/Postal Code
75034
Country
United States

12. IPD Sharing Statement

Plan to Share IPD
No
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Effects of Two Different Types of Ankle Foot Orthoses on Gait Outcomes in Patients With Subacute Stroke.

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