So many people have lower back pain, in addition to hamstring tightness. I do this straight leg bend all the time. It helps to loosen the soft tissue in my lumbar spine, as well as lengthening my hamstrings. The slight rotations also help to target those
Oftentimes, it takes us buckets of tears, sweat and (literally) blood before we achieve what we want in life. But so long as it means waking up the next day to a morning as majestic and picturesque as this, I would not mind fighting till I shed the last b