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Ankle movement and boot fit

post #1 of 13
Thread Starter 

I am interested to learn about ankle movement in the boot. I have the Lange RX120 and it fits pretty tightly. I have been told by a bootfitter in Canada recently that my boot was too tight around my ankle and this would restrict my ability to use the foot muscles to effectively turn. As a result the boot was punched out a little around the inside ankle bone and also a little in front of the ankle. The boot is still well fitting and I don't have heal lift. I can however now really feel my foot move to the inside like it is rolling over to the big toe edge. I think my foot is pronating? The foot bed I have does have a little 'give', it is not a rock solid effort.

I have only skied in them for one day and I am not sure if this is really a benefit or not. When in a carve turn it feels good, I can feel the inside edge of my foot hard against the boot but the change in tightness is weird and not what I am used too.



post #2 of 13
post #3 of 13
Thread Starter 

Excellent article, thanks. I guess my question is then more about degree of movement inside the boot, should I feel my roll over or is it a very small change in pressure?

Thanks again

post #4 of 13
Personally, I do not want any slop inside my boot around my ankles however I do want to be able to evert my foot a bit to create a slight bit of ankle angulation inside the boots and transfer that movement to the skis. I concur that a slight bit of lateral ankle movement is desirable to facilitate ankle angulation which in turn aids lateral balance from the first link in the kenetic chain! Subtle movements in the ankle translate into much larger movements of the rest of the body over our edges!
post #5 of 13
Thread Starter 

Thanks, I think I have a little too much from that description. I may try to get the punch un-punched if I can.

If I were to drop the coin on the Fischer vacuum boots, would you advise making any accommodation for ankle movement or just let liner pack-out take its course?

post #6 of 13

You can carefully heat the punch with a heat gun and the plastic will go back to pretty much it's original state.


I would just let the vacuum process do it's thing.

post #7 of 13
Thread Starter 

I tried on my boot tonight with the liner out and the footbed in. My inside ankle bone is hard up against the side of the shell and there is a good size gap at the outside bone. I looked at my foot while standing on the footbed out of the boot and my ankle rolls to the inside a lot. I guess I am pronating badly and it does not look good. If I pull my arch up my ankle levels out and looks more normal and is more centered in the boot.

When I looked on line to see if I could get a high arch support footbed to try I found advice that says not to put a high arch support under a low arch foot. 

So, if my foot rolls over to the inside pushing my ankle bone out even when on my custom footbed should I try to get more arch support or will a snug boot hold my ankle up or should I get a vacuum boot to mold to the pronated shape of my ankle.

I guess i am asking if I should try to correct the problem or fit around it?

Thanks for the help.

post #8 of 13

bad info on the arch shape and the footbed that will work best. look up windlass testing. this will give you the information that you need to get the best match of footbed for the mechanics of your arch. it is not about what your arch is shaped like, it is how your arch functions in flexibility.


your bootfitter missed this in your assessment and went right to the low IQ approach of making an ankle punch that you did not need. best guess is that you need to rethink boot choice as well as the under foot support.



post #9 of 13



Follow Buds info about heating the shell and Starthaus' info about the foot bed--- both are right, it sounds like your footbeds need a redo---boot fitter too.



post #10 of 13
Thread Starter 

starthaus - I looked up 'windlass test' and got way too much information for my understanding of foot mechanics. I tried to do the test on myself and all I found was the long tendon from the big toe gets tight as I bend the toe back, something that feels normal, no pain. Can you tell me in a simple way how this test applies to footbed design?


post #11 of 13

what we are looking for is arch flexibility. the more flexible the arch, the more tolerance for re-shaping/supporting the arch with a footbed. the less flexible the arch, the less it can tolerate re-shaping/supporting.


there can also be a correlation between arch flexibility and excess movement of the sub-talar joint.


what a footbed can do well if properly matched and manufactured to your set of circumstances, is help control the heel bone so that it lines up perpendicular to the achilles tendon, and if the arch flexibility allows, comfortably support the bone structure that forms the medial arch. this combined with a ski boot shell that matches your foot size, shape, and flex needs, will set you on the road to improved skiing and ski control.



post #12 of 13
Thread Starter 

OK, I think I am beginning to understand. I did a test last night to see what my arch should ideally be, not sure if this is reliable or not.

I stood barefoot on a flat floor and turned my toes up as far as I could with my knees flexed a little. This caused my arch to pull up. I then let my toes move gentle down to rest on the floor without letting my ankle pronate over. The result was quite a high arch and could hold it up without much effort. My heal looks very straight and upright. If I relaxed the muscles my arch collapses and my ankle rolls in.

The height of my arch formed this way is higher than any of the 4 footbeds I have had made over the years (I obviously have more money than sense - very frustrating experience). I would guess not quite 1 1/2 times higher than my current bed.

So, I am right in concluding that I could have a footbed made that would hold me in this position and as long as it did not hurt and had some give I would have a good solution?

Sorry to keep this thread alive but this is really important to me and many boot fitters give advice but do not back it up with any kind of science and the result is very frustrating (not to mention expensive).

Thanks again

post #13 of 13

 Sounds like a pretty flexible midfoot which means it would respond well to a fuller arch support and stiffer posting material to support your feet in a neutral position.  It doesn't sound like your current footbed is doing this??  There are other possible issues with your feet which can not be assessed or resolved here which may require other posting considerations as well.  Best to find a reputable fitter or C ped who can correctly assess your feet and get it right for you.  As Jim noted, it sounds like your current fitter missed the mark on the footbeds and is treating the symptoms by stretching the ankle/navicular areas of your shells?  You will find not only will your comfort improve but your skiing performance will improve once this first important step is resolved.




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