Have you guys ever had that hamstring pain when you stretch your quads bringing your heels to butt but when the angle reaches 45 degrees hamstring contracts and stiffs and cramps and you dare not straight your legs as muscle is stiff and will cause more pain then iris until you slowly bend and straight till it goes. Gives me understanding of hamstring tear when sprinting.
So I quickly bring heel so my hams don't have to contract when going slow as hamstring has to stabilise legs when being raised slowly.
It is very tight and painful if I let my legs be bent any opening of the knees and hell breaks loose.
yup i've experienced that many times. for me, it seemed to happen when i had greater quad flexibility or forced the stretch too much, either way resulting in hamstrings/gastrocs coming in "too much" contact. almost like it just "cramps up" being in that position. the after effects could linger for a few days, or even a week or more.
i think for me, when that happened, it would tweak the "popliteus" muscle. Could be what's happening for you.. not good to tweak that muscle.. it can cause all kinds of issues and knee instability.
some weird chain of events could be happening, ie similar to what FDL said .. something contracting in that position and causing a problem.
pretty sure we're talking about the same thing.
i've been back on the no-stretching boat for the last 6 months, feel really good. plan to stay here.
be careful with it!
pc!