Gait Retraining to Reduce Knee Osteoarthritis Pain
| Status: | Completed |
|---|---|
| Conditions: | Arthritis, Osteoarthritis (OA) |
| Therapuetic Areas: | Rheumatology |
| Healthy: | No |
| Age Range: | Any |
| Updated: | 2/4/2013 |
| Start Date: | July 2011 |
| End Date: | May 2012 |
| Contact: | Pete B Shull |
| Email: | pshull@stanford.edu |
| Phone: | 650-469-3851 |
Evaluation of Haptic Technologies for Movement Retraining
The purpose of this study is to determine how well people can be trained to produce new and
different movements through the use of haptic feedback. One particular application is
retraining individuals to walk differently in order to reduce knee joint loads to prevent or
treat knee osteoarthritis as an alternative to surgical treatments.
During the movement retraining session, you be given different combinations of haptic,
visual, and auditory feedback in order to inform you on desired movement changes. This will
take place at the Human Performance Laboratory at Stanford University. Motion analysis will
be done while you perform movement activities (such as locomotion).
Prior to performing these movement tasks the investigators will attach reflective markers to
your body using tape, pre-wrap and/or ace bandages. The investigators will record motion of
your body's movements using infrared cameras which capture anatomical data from the
reflective markers on your body.
The investigators will provide you with feedback to inform you of desired movement
modifications. Haptic feedback devices such as vibration motors and skin stretch devices
will be attached to your body via velcro straps and will be used to give "touch" feedback.
There will be a computer monitor in front of you during testing to provide visual feedback.
Sounds will be played using speakers near the testing area to provide auditory feedback.
The time needed for set up and performance of the above set of tests is approximately 90
minutes. You will be performing walking and other movements for only a small part of that
time. The rest of the time will be spent preparing you for the experiment. After the
investigators examine your movement data, if some of the data appear inaccurate or the
investigators are unable to process the data, the investigators may ask you to repeat the
movement analysis at a later time.
Inclusion Criteria:
- Symptoms of medial compartment pain during the previous 6 weeks
- Radiographic evidence (AP X-ray) of medial compartment knee osteoarthritis (KL score
of 3 or less)
- Ability to walk unaided for 25 minutes without rest
- Age > 18
Exclusion Criteria:
- BMI > 30
- Previous injury or surgery on foot, ankle, knee, hip, or back inhibiting ability to
adopt different walking gait
- Use of shoe insert or hinged knee brace
- Corticosteroid injection within the previous 6 weeks
- Age > 80
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