Basically, I struggle getting slightly past a 90 degree bend in any sort of forward bend / sit-and-reach stretches. Straddle rotations are miserable.
I feel like both of these are low back issues. Hamstring and calf stretches are generally fine - I can perform a flat footed downward dog with little issue. But whenever I forward bend, I look like this guy:
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(Note: interestingly enough this pic is from a stretching site)
How do I fix this?

