Roundoff

A roundoff is a move in gymnastics similar to a cartwheel.

The roundoff is a gymnastic technique that turns horizontal speed into vertical speed (to jump higher); it is also used effectively to turn forward momentum from a run into backwards momentum, giving speed and power to backwards moves such as flips and somersaults.

The roundoff is similar to a cartwheel except the gymnast lands with two feet placed together on the ground instead of one foot at a time, facing the direction they arrived from. This is achieved by twisting the hands and shoulders as the hands are placed on the ground. The two hands are generally placed down one after the other, so that the first hand is twisted by 90 degrees and the second hand by almost 180 degrees from the direction of travel. This creates a handstand position facing the opposite direction the gymnast started in, which they then snap their hips down quickly to create backwards momentum.

This technique is seen in men's and women's floor gymnastics. The roundoff sometimes initiates a series of back handsprings, flips and twists (called tumbling).

Roundoffs are used by most acrobatic sports, including certain types of dancing and cheer leading.

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Other articles related to "roundoff":

Terin Humphrey - Skills
... punch front, beat jump - switch leap, back dive 1/4, back hip circle - roundoff, flip flop, double tuck (9.9 SV) Floor Exercise Roundoff, backhandspring, double Arabian - full-twistin ...
Affine Arithmetic Operations - Roundoff Errors
... affine arithmetic operations must account for the roundoff errors in the computation of the resulting coefficients ... Instead, one must compute an upper bound to the roundoff error of each, and add all those to the coefficient of the new symbol (rounding up) ... Thus, because of roundoff errors, even affine operations like Z = X and Z = X + Y will add the extra term ...
Machine Epsilon - Variant Definitions
... The IEEE standard does not define the terms machine epsilon and unit roundoff, so people are free to use different meanings which can cause some confusion ... use the words machine epsilon and unit roundoff interchangeably and with this meaning ... MATLAB eps function returns this, not the unit roundoff ...
Guard Digit
... one or more guard digits can be used to reduce the amount of roundoff error ... That is to say, the roundoff error introduced by this final roundoff makes a negligible contribution to the overall uncertainty ... Be aware that roundoff errors can accumulate ...
Roundoff - Progressions
... Roundoffs are an essential part of the Yurchenko vault ... In a Yurchenko vault, the gymnast does a round-off onto the springboard and a back handspring onto the horse or vaulting table ...