Sit properly in a chair as often as possble, wear a 'kidney belt' lower back support, or someting like a bikers Knox Back Protector (not in the potato tractor/H-D or 'cruiser' meaning, as those tall 'ape hangers' force them to ride upright and catch flies in their teeth, ahem - think 'pocket rocket' style back protectors)...
TPBM is waitng for the day when sports sponsorship increases its market share and fan base with additional sponsors such as Bodyform, Lillets, Tampax, etc, just imagine 'Lynx Effect' style marketing speils 'Handles like silk, goes like a bullet' etc instead of feels like silk, as hard as bullets, and/or Sparco Seats teams up with Bodyform, to provide the best most comfortable seating whaterver you do whenever... (te he )