Buck here is a link to the company that distributes the Fuji film product I was talking about They actually talk about doing foot applications and auto seat pressure points
I don't have a rep contact anymore but they will did have a sample kit with a small section of film that they would develop and read for you to check for suitability of application use. But if you checked with their medical group or auto group they could probably tell you exactly what to use as it was probably their product that was used in the study that you linked.
This stuff is not cheap They charge by the square in and the cost depends on how tight of a resolution you require so like a monitor screen every time you add more pixels the cost increases using that analogy they can go from the old XGA to at least 1080i if not to the new 5K .