My problem is tight or rather too stretched hamstrings, so i'm trying to solve this problem. Hamstring stretches make me feel unstable so i think they are tight already. I HAVE A KNOT LEFT LOWER BACK ...
I would like to get my hamstrings more bulk. My quads and calves are ripped, but I feel like my hamstrings aren't as strong as them, or at least don't look as strong. I can leg curl 160 pounds though ...