It's the second leading reason people miss work.
Imagine someone taking away your job and hobby and everything you like to do. It creates a lot of stress in a person's life.
If you have depression and chronic pain, it's important to figure out what came first. Chronic pain sufferers often get a stigma if we can't find a structural reason for the pain.
The best way to strengthen back muscles is in a static position, You maintain the position of the core while moving other parts of the body.