Girls practice sit-ups during gymnastics lessons at the Shanghai Yangpu Youth Amateur Athletic School in Shanghai, China, on May 4, 2016. China's sports system has been enormously successful since the country returned to the Olympic fold in 1980, culminating with the host nation topping the medals' table at the 2008 Beijing Olympics. And yet, with the Rio de Janeiro Games less than three months away, the system is beginning to break down due to the shifting demographics of a more prosperous nation. (Photo by Aly Song/Reuters)

Russia's Darya Klishina prepares for the women's long jump qualification during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Tuesday, August 16, 2016. She might be feeling the pressure of being all alone, but Darya Klishina could yet still win Russia's only athletics medal at the Rio 2016 Games. (Photo by Matt Dunham/AP Photo)

Ingrid Landmark Tandrevold of Norway in the finish during the women´s biathlon pursuit during the Beijing 2022 Winter Olympics at National Biathlon Centre on February 13, 2022 in Zhangjiakou, China. (Photo by Hannah Mckay/Reuters)

China's Gu Ailing Eileen waits to see her score as she competes in the freestyle skiing women's freeski slopestyle final run during the Beijing 2022 Winter Olympic Games at the Genting Snow Park H & S Stadium in Zhangjiakou on February 15, 2022. (Photo by Marco Bertorello/AFP Photo)

Kamila Valieva, of the Russian Olympic Committee, reacts after competing in the women's free skate program during the figure skating competition at the 2022 Winter Olympics, Thursday, February 17, 2022, in Beijing. (Photo by David J. Phillip/AP Photo)

Japan's Chinami Yoshida shouts instructions to teammates during a women's curling semifinal match between Japan and Switzerland at the Beijing Winter Olympics Friday, February 18, 2022, in Beijing. (Photo by Nariman El-Mofty/AP Photo)

Colombia's Mercedes Isabel Perez Tigrero competes in the women's 64kg weightlifting competition during the Tokyo 2020 Olympic Games at the Tokyo International Forum in Tokyo on July 27, 2021. (Photo by Edgard Garrido/Reuters)

Nina Betschart of Team Switzerland dives against Germany during the Women's Preliminary - Pool F on day one of the Tokyo 2020 Olympic Games at Shiokaze Park on July 24, 2021 in Tokyo, Japan. (Photo by Sean M. Haffey/Getty Images)