Battlestar Galactica's weight room has standard weights and machines for all of the crew, but it also has a special machine for pilots -- especially Viper pilots -- that simulates the amount of pressure needed to hold down the Viper's thruster pedal. The amount of G's and force necessary to keep the thruster pedal pressed down during a turn is directly proportional, and the machine helps train pilots' legs.
In "The Hand of God", Commander Adama uses this machine to show to Starbuck that her knee is not yet fully healed and that she is not ready for the upcoming fuel operation.