Is it anymore comfortable? I have been having shin problems from running, I have a feeling that these would either make it much worse or much better.
If they go on your feet, I wonder why the are called fivefingers instead of fivetoes.
In portuguese "toes" are called "feet fingers".
So, I have been wearing the fivefingers off and on, trying to adjust, but what I am finding is there is a really annoying not-quite-painful tendon-y or ligament-y sort of twinge that happens in between the first and second toes of my right foot. I'm not sure what I did, or if I wore them too long the first day and I'm still recovering or what. It keeps me from attempting anything really bold with them, though, like leaving the house. I'm hoping it's just a temporary adjustment thing, because they're stunningly comfortable otherwise.
There's not really a tendon or aponeurosis that runs between the toes at the phalangeal level. Could you be more specific, perhaps with what actions initiate the feeling?
at its worst, can be felt into the ball of my foot.
It's probably a minor injury, since I've felt it recently when not wearing the fivefingers, though less commonly.
Sounds like a weak hallucis longus and/or brevis. Most of your flexors are probably weak from years of wearing shoes; most shoes provide some level of toe extension but very little flexion. Some basic toe exercises can go a long way to help reduce that, such as towel curls.