I'm pretty sure my hip is an impact injury. I ran on it Tuesday very easy and had the same pain. Cycling, stretching, no pain. I'm committing to a full week of no impact (except walking) to see if there's improvement. In the meantime, I'll be getting my ass kicked on the bike; indoor trainer. I really haven't done anything on the bike in 6 months and those muscles are weak compared to my heart. HR in the low 130's and my legs are nearly burning. I have a tempo ride today that may Tourmalegs off, Bob Roll's term.