Extra information relating to my idea for a portable gait analysis application. Useful links as in presentation: A comparative study between the current systems by myself (please download for best reading): http://www.slideshare.net/conoranthony/gait-analysis-report The Vicon system website: http://www.vicon.com/applications/gait_analysis.html Coda system website: http://www.codamotion.com/index.php Silicon Coach website: http://www.siliconcoach.co.uk/#0 Gait analysis: http://en.wikipedia.org/wiki/Gait_analysis

1. Gait Analysis Software Idea
By Conor Sheehan

2.  The Idea
 Function
 People who will benefit
 Current Alternatives
 Comparison to Alternatives
 Continuing to Built Upon
 Useful Links
 Summary

3. “To design a portable gait analysis software
program that would run on Tablet PCs, utilising
their inbuilt cameras, (or alternatively on a
Laptop with a suitable external camera).
With this device seeing its primarily functional
use in hospitals and clinics, giving clinicians a
tool to quickly analysis a person’s gait, while
instantaneously getting feedback from the
streamed camera.”

4.  So what actually is gait analysis and how will it be incorporated
into a device such as a Tablet PC?
 First gait analysis is: “the systematic study of human locomotion,
using the eye and the brain of observers and improved with
augmented instrumentation for measuring body movements,
mechanics, and the activity of the muscles. Gait analysis is used
to assess, plan, and treat individuals with conditions affecting
their ability to walk.”
 How will my device work?
The application will work with a Tablets camera, it will display the person being
captured on screen while the operator (clinician) positions the device and can
select landmarks on the screen allowing points to be placed and hence lines drawn
and angles calculated. These points will then be able to follow the person (on
screen) and after a set distance compare the results (step length, distance, angles
etc.) against a normal range and also give suggestions of the problem areas. It can
then later be used to compare follow up results.

5.  Although not an exclusive list, these professionals
would be most likely to benefit most from the use
of this device, as gait analysis is a key part of their
work and currently is widely only analysed by eye.
 The list includes:
◦ Physical Therapists
◦ Podiatrists
◦ Prosthetists
◦ Orthotists
◦ And Doctors in related fields

6. Vicon System Coda System Video Camera with Visual
Silicon Coach
Software used after Observation
About Fully set up lab, Sees use in some Fast video capture Most widely used
mainly only for clinics, manly only that itself can be method, as is
Method research, large for 2D imaging and replayed (good for considered “free”
space consumption force analysis and patients who tire and faster than
special patient easily) Software setting up
cases only sees benefit in equipment
research currently
Cost Up to a million High Cheapest Hardware N/A
pound+ costs and program
of minimum costs
Portable No Yes, but equipment Yes N/A
consists of about
30kg+
Ease of use Requires Requires Simple recording Requires highly
specialised training specialised training method, and trained eye and
and understanding and understanding software knowledge
of equipment if any of equipment if any application is a
hardware problems hardware problems basic and easy to
arise arise use
Data Output Accurate 2D and Accurate 2D and Basic results with Can be highly
3D results, with full 3D results, with full all measurements accurate but
all factors and all factors and having to be observations may
parameters parameters inserted manually also, not be
considered considered and so long length quantitative or
of time for use objective

7.  About Method:
◦ My idea is to allow for a small Tablet PC and camera be used in a clinical environment
as an accurate and needed tool for video capture, that further allows for review and
gives suggested problems and then solutions based on the present data.
 Cost:
◦ As I am incorporating the device into a tablet and so the cost mainly lies in that
(average tablet price about £250-£300 for a well built device), the other element
would be the price of the application, that could not be decided until it is actually
created. But overall the end product would be in the £300 (Tablet and application)
range bracket (estimate).
◦ But for the future a solely exclusively designed medical Tablet device is my goal to
design that would allow for a more optimized product for its setting and should lower
the overall cost.
 Portability:
◦ It is one of the key concepts of my device to be portable and be used in hand by the
professional.
 Ease of use:
◦ Like most modern technology, I wish to make it as easy to use as possible and be
able to be used straight away when picked up.
 Data Output:
◦ Another concept I have already discussed is that the software will run with the live
stream of the camera to give results at the end of the video capture. Again unique to
my idea.

8. What my objectives are with Currently the
this device from start to idea:
finish.
With help, advice and
brainstorming for best
way forward
Designing of Implementing and
Putting it into
production and selling
Software testing the Product to the Health Sector
For the future design a full
Medical use Tablet allowing
uses in other medical
areas, not just gait
analysis.

9.  To finally reiterate all what my idea is, how its different and my
motivations that I hope will drive it forward.
 The idea is to create a portable gait analysis application that
could be used on both a Tablet or PC with use of a camera. The
devices primary role is as a tool to quickly analysis a person’s
gait in hospitals and clinical settings.
 The idea is unique in that it will bring together the areas of:
◦ Portability
◦ Cost
◦ Ease of use
◦ And quick data output
 And finally I have a strong self motivation and commitment to
this idea and I strongly believe in the need for it and so hope to
push this idea forward to see it in use one day soon.

10.  A comparative study between the current systems by myself
(please download for best reading):
http://www.slideshare.net/conoranthony/gait-analysis-report
 The Vicon system website:
http://www.vicon.com/applications/gait_analysis.html
 Coda system website:
http://www.codamotion.com/index.php
 Silicon Coach website:
http://www.siliconcoach.co.uk/#0
 Gait analysis:
http://en.wikipedia.org/wiki/Gait_analysis