A friend had lower back pain which almost made it impossible for him to sit more than 10-15 minutes. He couldn't run or even bend forward. He switched to a stan

A friend had lower back pain which almost made it impossible for him to sit more than 10-15 minutes. He couldn't run or even bend forward. He switched to a standing desk (nothing fancy - just a big box on top of his regular desk) and started freestyle swimming. Its over a couple years now - he can run at 4-6 mph (no sprinting) and even bend half-way forward. Hope that helps.