Hip mobility issues are a major contributing factor to low back pain. Addressing your pelvis control and hip mobility often partially or completely resolves back pain problems.
Often the spinal muscles also need direct retraining.
These videos may be helpful for you:
Back Pain Programs
If you're a regular desk jockey looking for a program designed to target ALL the major contributors to back pain, check out this Upright Health program.
If you are an athlete and want a program to specifically address back-pain, you can check out this GotROM program.