Balance isn't a single thing, it consists of two major elements.

  • One type of balance can be understood as equilibrium on a moving object.  This could be surfing, skateboarding, balance trainers like Indo Boards, or like this slackline video. 
  • The second type is more common for most people and that is when your center of mass travels to a new base of support.  Watch Daniel Ilabaca perform a precision jump to a handrail for an extreme example.