cannot be efficiently converted into fast angular speed, so the conversion of fast linear motion, which produces a lot of force, into fast rotational motion is small. Therefore, is it a waste of energy to build up speed going into a spin; entering a spin slowly achieves the same result and will probably be more consistent. A spin consists of the following parts: preparation, entry, spin, and exit. During the preparation phase, skaters decrease the radius of the skating curve and velocity/speed, which means that the skater must increase how much they lean into the spin. As researchers Lee Cabell and Erica Bateman state, "A step against the gliding edge exerts a force on the ice; the resultant torque about the axis of rotation results in the angular momentum that is used during the spin". Greater force during the initial push of the spin's preparation phase results in greater torque and angular momentum, which will result in a faster spin. The International Skating Union defines a spin exit as "the last phase of the spin and includes the phase immediately following the spin". The exit coming out of a spin occurs in two stages: breaking the spin's rotational spin and the exit itself.There are many exit variations of spins. A difficult exit is any jump or movement a skater performs that makes the exit significantly more difficult. The entry phase of a spin produces a logarithmic curve with an indefinite number of radii, smallest at the end and largest at the beginning. When the entry curve radius is decreased, the skater will change the angle of their ean towards the vertical axis, gradually reducing the velocity/speed. The curve ends with a 3 turn, then the center of gravity is slightly lower, resulting in the skater beginning to spin. After the initiation of the actual spin, they will exhibit a large moment of inertia. Their shoulders are square to the hips and rotating with each other at the same angular velocity. The skater's center of gravity must be directly above theie base of support (for example, where the blade is in contact with the ice) in order for them to execute a balanced spin. If the spin is not balanced and centered, the vertical projection of the center of gravity moves away from their base of support, which results in the spinning blade making small loops on the ice. The skater's