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heyy
just wondering whether anyone knows about how valid the foot posture index is to use and maybe the pro's and con's of it?

any help would be appreciated :)

 

http://www.leeds.ac.uk/medicine/FASTER/FPI/

 

PROS
- Very quick
- Seems to have good reliability
- Good if you need to 'categorise' feet for research purposes

CONS
- Not predictive of pathology
- Does not necessarily dictate management/orthoses prescription variables
- What do you actually do with the number clinically?

Lots more here: http://www.podiatry-arena.com/podiatry-forum/tags/index.php?tag=/foot-posture-index/

 

FPI-6 is a very good educational tool to visualize what is going on in a pronated vs a supinated foot. Meanwhile intra-rater agreement (same rater) is high the inter-rater agreement (between-raters) is questionable.

See .e.g.

(Cornwall, M. W. , McPoil, T. G., Lebec, M., Vicanzio, B. & Wilson, J. (2008). Reliability of the modified Foot posture index. Journal of the American Podiatric Medical Association 98(1), 7-13.)


As Ian said id quick and good to give an overall picture of foot posture. Be carefull to use it between clinicians though.

Just my thoughts

Cheers

 

Sorry Rabzash - Bjorn is right. When I referred to it's reliability I should have specified that I was referring to intra-observer reliability. I have actually just finished collecting data for a small research project myself and it certaily seems to suggest that inter-observer reliability of FPI-6 was not great.

PM me if you want a copy of the JAPMA paper above and I'll email it to you.

Ian

 

Ferrari and Morrison just published a paper recently on the inter-rater reliability of two clinicians of 30 children.

That is just one of many publications on the reliability of the FPI. use Medline or CINAHL and do a search and you'll find what you're after

 

thanks sally!

 

Hi i was just wondering whether anyone knows any information about
HOW USEFUL THE MEASURE IS IN PREDICTING DYNAMIC FUNCTION WITH REGARDS TO THE FOOT POSTURE INDEX?

Thanks.

 

This should answer that - but don't forget about subject specificity/individual variations

 

FPI never claimed to be anything other than a measure/quantifier of posture. In stance.

We skate onto thin ice when we try to attribute more to a tool than it is capable of delivering. I am a fan of the FPI, but I have respect for it's limitations. It's good at what it is, but it's better to stick to it's strengths and use it for what it is.

However, I too dream of a measure that will give us objectively what we want. But this is barking up the wrong tree I think. One day.....