With so many accidents on star ships and shuttles, this seems a bit of an oversight by Star Fleet's health & safety department. Safety first! read more
In Star Trek, the ships have something called"inertial dampers" (sometimes"dampeners") that stop any kind of acceleration or deceleration from affecting objects and people in the starship. This is actually much more important than simple seat belts - if it weren't for the inertial dampers, everyone aboard the Enterprise would be turned into chunky salsa. read more