- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02018380
Effects of Shock Absorbing Insoles on Knee Pain and Walking in Persons With Knee Osteoarthritis
December 16, 2013 updated by: Judy L. Foxworth, PT, PhD, OCS, Winston Salem State University
Immediate Effects of Shock Absorbing Insoles on Knee Pain, Functional Mobility, and Lower Extremity Biomechanical Characteristics in Persons With Knee Osteoarthritis
Osteoarthritis (OA) is a progressive, chronic disease affecting more than 20 million Americans. There is no known cure for OA and management includes pain control and prevention of functional decline.
Purpose: To investigate the immediate effects of a shock absorbing insole (SAI) placed in the shoe on knee pain, functional mobility and lower extremity biomechanics.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Detailed Description
Sixty adults (age 50+) with knee OA and pain will be recruited.
A physician will diagnose the severity of knee OA through radiographs.
Participants will be tested in the KBR Human Performance Lab on the campus of Winston Salem State University (WSSU).
Participants will complete a demographic form and a survey about their knee pain and function.
Participants will be evaluated under two conditions: 1) with SAI placed inside the shoe and 2) shoes alone.
There are three walking tasks: 1) walking 25 feet at their usual pace; 2) walking 25 feet at a fast pace; 3) walking six minutes for distance; and a 4) biomechanical gait analysis.
After each of the walks, participants will rate the amount of knee pain they experienced.
During the biomechanical analysis, participants will walk down a 20 foot walkway while wearing reflective markers.
Eight cameras and a force plate embedded in the walkway will measure the amount of body movement and the forces applied to the leg joints during walking.
Study Type
Interventional
Enrollment (Actual)
60
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
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North Carolina
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Winston-Salem, North Carolina, United States, 27110
- Winston Salem State University
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
50 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- 50 years of age or older
- Radiographic evidence of knee OA in the test extremity (K-L grading scale = 1 to 4)
- Knee pain (WOMAC pain subscore of 4 or more and report moderate pain on at least 1 listed activity in the WOMAC) on most days
- Able to speak, write, and understand English
- Able to walk 25 feet without an assistive device
- Must wear a shoe size available in the lab (Women's 6-10 and Men's 8-14)
- Able to attend two sessions of data collection within 14 days
Exclusion Criteria:
- Currently wearing some type of foot orthosis (custom or over-the counter)
- Had lower extremity surgery of the test leg in the past 12 months
- Had a total knee replacement on the involved leg
- Had hip and/or ankle OA in the involved leg
- Had a neuromuscular disease disorder which affected their walking ability
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Shock Absorbing Insoles vs. Athletic shoes
|
The shock absorbing insole used in this study was the SofSole Athletes Plus, (Implus Inc, Durham, NC), recommended by the manufacturer for repetitive activities such as running and walking.
It is readily available in most athletic shoe stores, retailing for under $20.00.
The insole is full-length with a curved last made of Implus XP that has a shore A durometer reading of 60 (0 = softest to 100 = hardest).
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Knee pain while walking
Time Frame: Baseline
|
Baseline
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Ground Reaction Forces
Time Frame: Baseline
|
Baseline
|
Knee joint kinetics during stance phase of gait
Time Frame: Baseline
|
Baseline
|
Gait speed
Time Frame: Baseline
|
Baseline
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Judy L Foxworth, PT, PhD, Winston Salem State University
- Study Chair: Darin Padua, ATC, PhD, Unversity of North Carolina
- Study Director: Stephen Messier, PhD, Wake Forest University
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
August 1, 2006
Primary Completion (Actual)
May 1, 2008
Study Completion (Actual)
July 1, 2008
Study Registration Dates
First Submitted
June 29, 2009
First Submitted That Met QC Criteria
December 16, 2013
First Posted (Estimate)
December 23, 2013
Study Record Updates
Last Update Posted (Estimate)
December 23, 2013
Last Update Submitted That Met QC Criteria
December 16, 2013
Last Verified
December 1, 2013
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2986-06-0038
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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