momentum for power. In 1976 Baryshnikov went on to set a world record of with his spin style, and was the first shot putter to cross the 22-meter mark. With this technique, a right-hand thrower faces the rear, and begins to spin on the ball of the left foot. The thrower comes around and faces the front of the circle and drives the right foot into the center of the circle. Finally, the thrower reaches for the front of the circle with the left foot, twisting the hips and shoulders like in the glide, and puts the shot. When the athlete executes the spin, the upper body is twisted hard to the right, so the imaginary lines created by the shoulders and hips are no longer parallel. This action builds up torque, and stretches the muscles, creating an involuntary elasticity in the muscles, providing extra power and momentum. When the athlete prepares to release, the left foot is firmly planted, causing the momentum and energy generated to be conserved, pushing the shot in an upward and outward direction. Another purpose of the spin is to build up a high rotational speed, by swinging the right leg initially, then to bring all the limbs in tightly, similar to a figure skater bringing in their arms while spinning to increase their speed. Once this fast speed is achieved the shot is released, transferring the energy into the shot put. Until 2016, a woman had never made an Olympic final (top 8) using the spin technique. The first woman to enter a final and win a medal at the Olympics was Anita Márton. Usage Currently, most top male shot putters use the spin. However the glide remains popular since the technique leads to greater consistency compared to the rotational technique. Almost all throwers start by using the glide. Tomasz Majewski notes that although most athletes use the spin, he and some other top shot putters achieved success using this classic method (for example he became first to defend the Olympic title in 56 years). The world record and the next six best male results (23.37, 23.30, 23.15, and 23.12 by Ryan Crouser, 23.23 by Joe Kovacs, and 23.12 and 23.10 by Randy Barnes) were completed with the spin technique, while the eighth-best all-time put of by Ulf Timmermann was completed with the glide technique. The decision to glide or spin may need to