Thread: different orthotics stiffness for winter and summer

Thanks for the reading Simon. Clearly as you and Phil said there will be a rise but nothing that will have a major effect on device stiffness. The china leather article talked about 6 degee which then become stabil after a short time. Nothing to consider.

Here you go Michael http://linkinghub.elsevier.com/retri...03999301922348 http://www.actapress.com/Abstract.aspx?paperId=32664 http://www.chinaleather.org/download/2-6/2-218.pdf

I tend to think that if the temp really got to -20 deg C inside a boot for very long the foot itself would not be doing too well, it would not be just the orthotic going rigid......... and even then the change from normal room temp is only 40 deg or so, when I did a little research project on hysteresis, elastic vs permanent change, on rubber bands even at 90 deg C. you could demonstrate an effect....but only a small one, so a forty deg change...

Quote: Originally Posted by m weber Had a patient in before with 3 "different" devices for everyday use, running and sking. He got a bit confused when I asked what the differences were as they looked the same to me and felt the same to him anyway... Having moved from a more constant climate of OZ. To the less stable climate of Sweden there is a call for two different stiffness of orthotics for warm and cold activities ? Yes...

Quote: Originally Posted by m weber Had a patient in before with 3 "different" devices for everyday use, running and sking. He got a bit confused when I asked what the differences were as they looked the same to me and felt the same to him anyway... Having moved from a more constant climate of OZ. To the less stable climate of Sweden there is a call for two different stiffness of orthotics for warm and cold activities ? Yes...