A very useful post by aid data guru David Roodman on how to take care of your back.
For what it’s worth – as I’m desperately trying to keep enough mobility in my arthritic body – to stay a surfer (I actually had mild chronic back problems pre arthritis too) find that:
1. McKenzie rolls help.
2. A standing desk is great; although I can stand for half a working day at the absolute most.
3. Walking helps a lot.
4. Stretching is a big help too; just don’t push things too far.
At least, this seems to be working for me — and surfing is currently leading to less pain.