Very interesting article!

Wahine, if you see this, is it reasonable for me to assume that ankle inflexibility can cause hamstring issues upstream? I had MAJOR foot surgery in 2004 - ankle ligaments were either torn or so stretched that they were like noodles (my ankle could do tricks you only see in cartoons) and they did a calcaneal osteotomy to correct a congenital problem with how my foot hit the ground. While it took roughly 1.5 years to fully recover and to be able to walk without thinking about it, that ankle is and remains a bit inflexible. Considering everything that isn't a surprise. Frankly I had NO idea what I was getting into with that surgery as far as recovery - which is good as it was very much needed.

I am wondering if this is the case since running is the only thing that causes issues with that hamstring, and only if I run regularly - oddly enough trail running takes longer to cause the problem if it has had time to calm down. Considering all of the other crazy things I do without symptoms I just don't think there is an actual hamstring injury.