Back flip is a generic term for a sequence of boy movements in which a person leaps into the air, performs one complete backwards revolution while still in the air, and then lands on the feet. Variations of back flips, such as the back tuck and back layout, are performed in gymnastics, tricking, acro dance and various other activities. Back flips can be started from a stationary, standing position and they are also commonly executed immediately following another rotational move, such as a roundoff, so as to take advantage of the angular momentum developed in the earlier move.