I’ve posted about this before but I’m giving it one more shot, as I’ve got more information now than I had in the past.
I’ve suffered from a chronic cramping of my anterior tibialis muscles (both legs) for quite some time now. Been running for years and this condition has come and gone the whole time. I can go 6 months without it being a problem, then can go another 6 months where it happens almost every time I run. Taking time off does not seem to have any effect. It seems like it could be seasonal - last year when I abruptly went from cold weather running to warm weather running (took at week-long training vacation in Hawaii) it cleared up IMMEDIATELY and didn’t return until late this fall.
When I can run and avoid the cramping, I still suffer from severe DOMS in the tibialis anterior muscles the day after. If I try to ‘run through’ the cramps will I quickly develop periostitis (shin splints) which I assume is from the tight tibialis anterior muscles pulling on the tibial periosteum.
I am reasonably sure that the issue is NOT overstriding. I am pretty much a midfoot striker and my cadence is relatively high. I have developed reasonably good running form - I ‘look’ like an experienced, smooth runner.
I pronate somewhat, but not to any sort of extreme amount, and I use neutral shoes with superfeet insoles. I’m in the process of getting custom insoles made (had casting done and am waiting for some final modifications) but they are not going to be radically different from the superfeet as far as arch support. This condition has happened with every shoe - neutral, corrective, padded, low-profile. I am currently running in Mizuno Wave Riders but have tried all sorts of different shoes.
I generally run on asphalt but try to mix in trails and softer surfaces when I can. Even when I do a run on 50% trail and 50% road the effects seem to persist.
I have to emphasize that while this condition seems to CAUSE shinsplints, it doesn’t seem to fit the definition of shinsplints itself, in that it’s limited to the muscles themselves.
I have had no luck finding any good documentation on this condition on the web and have seen 2 separate sports chiro’s for it, both of whom are stumped. ART helps a bit the day I get it but makes no difference the day after.
I am considering giving up running entirely and focusing on bike racing. I love triathlon but this does not seem to be something that’s going away, and without getting it resolved I don’t see myself able to meet any of my goals in the sport.
If anyone has any insight at all, I would VERY much appreciate it!