Want to second the individuals that mentioned try to do some back strengthening exercises. I cracked 5 of my lower vertabra on a bad jump (I am in the army and landed on my rucksack on a parachute jump. Hey it was 2 am and dark :-) ) After they healed after sitting at the computer for about an hour I would have massive cramps and pain. I started working on lower back muscle exercises along with Ab and Oblique exerices. Now I can go hours without that much of an issue.
They don't take up that much time if you do a few every day. Google lower back excerices. Men's Health and Askmen.com have some good beginner lower back exercises.
wigsajumper
They don't take up that much time if you do a few every day. Google lower back excerices. Men's Health and Askmen.com have some good beginner lower back exercises.
wigsajumper
