| Karky. It wasn't the stretch it happened before that.
Your low back pain may be from a tilted pelvis. Make sure it is nuetral. On abominal exercises, tilt it forward. On squats, make sure low abs are engaged. It may also be attributed to muscle imbalances. Quad/Ham Strength or push/pull are out of balance, right stronger than left side. Weak abdominals. Poor posture. Slouching. Bad sleep position. Weak Diet. Its all relevant consider the possibilites. | 
