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The O'Brien style revolutionized the shot put, a track and field event where athletes throw a spherical weight from their shoulder for distance. Developed by American shot-putter Parry O'Brien, this technique involved turning 180 degrees before releasing the shot, a significant change from the previous 90-degree turn. This allowed for greater speed and momentum, leading to increased distances. O'Brien himself set numerous world records between 1953 and 1959, pushing the distance from 18 meters to over 19 meters. His style was widely adopted, and the sport continues to see advancements in technique.123

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