Pushups. They are the single best full body exercise, that can be done ANYWHERE, and rather quickly. When you've reached a sufficient rep, add a dip bar. Pull-ups should also be part of your routine as well.
Every hour or so while working at the computer, I'll get down and knock out twenty pushups or so. You'll be surprised at how fast you build up muscle endurance, and your lower back pain will be gone.
Every hour or so while working at the computer, I'll get down and knock out twenty pushups or so. You'll be surprised at how fast you build up muscle endurance, and your lower back pain will be gone.