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Penny Hewart
- 1. Gait Analysis in the North (GAiN) Penny Hewart Clinical Engineer and administrator, Gait Lab
- 6. Light hearted demo of gait analysis Sherlock Holmes comes to the gait lab – part of a schools presentation on what happens in medical physics...
- 7. Explanation of what we will do
- 9. Sticking the markers on
- 10. Standing
- 11. Walking
- 13. What the infra-red cameras see... (video link removed)
- 14. Which is turned into a stick figure... (video link removed)
- 15. Which can then be made into a skeleton.... (video link removed)
- 16. Or a teddy bear.... (video link removed)
- 17. You’re are probably familiar with this use of the equipment...
- 18. But the really useful things are the graphs showing angles at the hip, knee etc...
- 19. And the clinical exam and x-rays
- 27. Orthotic aims – ground reaction vector control – example
Editor's Notes
- I showed Sherlock the special markers we use and explained what we are going to do.
- The technical data is used in conjunction with measurements of the legs taken by our physio.
- The markers are carefully placed so they are stuck on top of the correct bones and joints.
- A standing image is first done to calibrate Sherlock so the computer knows where all his bones and joints are.
- The he walks several times up and down so we have good amount to data to check that we are measuring his typical way of walking.
- I then have to process all this data to get the results we need which takes several steps...
- This is what each of the high tech cameras see – there are 12 of them and then
- All the different pictures are put together by the computer to give a stick figure walking
- And from this we can make a skeleton....
- Or a teddy bear – whoich is what they do in the films but theirs is a bit fancier.....
- Lots of films use the same equipment so there is a fun side to it too
- But that is all just pretty pictures – what we really need are lot of graphs which tell us much the ankles, knees and hips are moving. Green lines are right and red are left and the grey bit is what is normal, so you can see that in some graphs there is a difference in left and right and that they are not normal – this is what we will give a report on.
- And we will also comment on the measures we take and use any x-rays we have of Sherlock’s feet (reference to earlier talk)