EXPLAINER: How gymnastics evolved from 'exercising naked'

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FILE - In this Aug. 1, 2021, file photo, David Belyavskiy, of the Russian Olympic Committee, performs on the pommel horse during the artistic gymnastics men's apparatus final at the 2020 Summer Olympics in Tokyo, Japan. At the Games, men swing around a leather-covered block with handles called a pommel horse, that in early iterations roughly mimicked the size and shape of the actual animal. (AP Photo/Ashley Landis, File)