re: Lower back issues and exercises

Everyone is different and depending on your mechanism of injury, different things will help.

For me, heavy lifting was the best thing that has helped (squats and deads). I started lifting regularly and stopped doing metcons as frequently. If I do want to do a metcon then I'll pick very simple exercises like bike/row + bodyweight calisthenics. Also stopped doing oly lifting. Haven't had any back discomfort in a long time. Stretching did absolutely nothing for me.