Taller, lower desk, long-term ambulatory work, resulting in low back pain, how to solve?

Padding the height of the table, lower the height of the chair, look at the computer screen flat or up instead of looking down at the computer screen, walk around after 30 minutes of work. Usually pay more attention to the functional training of the waist, increase the strength and stability of the core muscles of the waist, if possible, more swimming.