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Weight bearing formation of foot beds

post #1 of 7
Thread Starter 
The custom footbeds I now use are several years (and boots) old. They were formed my heat softening the foot bed, then having the fitter hold it to my foot and use a vacuum pump to assist. I've seen this done many times.

The first custom foot beds I ever bought - many, many, many moons ago - were not at all like the Kork ones I now have. They were a flat thing that was heat softened, then placed on a thing -a-muh-jig, and I stood on them until they hardened.

Reducing the variables of materials used: If the Kork is used, what is the difference to the skier between custom foot beds formed by standing on them and those formed by having the fitter hold it to your foot? For which would you advocate, and why?

If a choice of materials makes a difference, then what would you choose, and would you form it by weight bearing or non-weight bearing method?
post #2 of 7
i think the process is somewhat irelevant if the right person is building the product for you...for me i prefer non weightbearing products like the kork superfeet product you currently have for a couple of reasons

1 i can control the postition of the foot without weight on it
2 the vacuum compresses the soft tissue so that you get a very accurate cast

semi weightbearing systems also work well , but personally i am not a great lover of stand on weight bearing systems, others on hear will probably disagree but that is what makes the world of bootfitting interesting, the main reason i do not like a weightbearing mould is that it is difficult to control the position of the sub talar joint when gravity is involved

more later you picked my pet subject
post #3 of 7
I agree with CEM on the fact that the technician is the most important part of the footbed/orthotic recipe.

I have been fortunate in the molding and fabricating of non weight bearing,semi weight bearing, and full weight bearing products. If the end product dictates good support or correction from a footbed/orthotic, then I would prefer:

1) full, semi, and non weight bearing for semi to well balanced feet from slightly pronatory (pes planus) to slightly supinatory (pes cavus) physiology
2) semi to full weight bearing for more extreme pronatory to supinatory physiology.

Every technician gets to like a certain molding system. It all depends on if the end product works as suggested or prescribed.

Just my $.02, your mileage may vary.
post #4 of 7
I agree with CEM and cantman 100%.

I will say, I have not made a full weight-bearing footbed in quite sometime. However, a person with super, super, super flat feet that is not used to any support from a footbed in their everyday shoes, sometimes that is all they can handle.
post #5 of 7
as has been said it depends on the foot type, the other consideration is thast flexibility of the foot in question...if the foot is very flexible then the non weightbearing systems allow the technician to maintain a good position where gravity can have an unwelcome effect on the foot when weaightbearing..... if the foot is rigid then a semi weightbearing system can be used with great success.....

weightbearing systems..... well i will never forget the lecturer who was teaching casting on my pedorthics course a few years back ...who as we were working on non weightbearing plaster casts...stopped the group to proclaim....''if anyone wants a really good way to make a bad orthotic then there are some foam crush boxes in the corner'' he then smiled and told the class to carry on

i am currently looking at ways to make make different products work better, by combining systems
post #6 of 7
The issue that I have with molding someone non-weightbearing who is overly flexible is exactly what you stated CEM. Gravity will always win out. I usually ask the client/customer/patient if they have ever had a shoe/boot that felt as if there was too much arch. I ask if it was uncomfortable. If they respond that in fact they have had such a problem, then I would rather build them a footbed/orthotic that they will be compliant with. What good will an orthotic/footbed do if the customer/client/patient can't wear it because it's too aggressively controlling motion?
post #7 of 7
I think as cantman says it is dependant on the person, people tolerate different things in different ways
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EpicSki › The Barking Bear Forums › On the Snow (Skiing Forums) › Ask the Boot Guys › Weight bearing formation of foot beds