Members of Changchun Mingzhu Community Tai Chi Chuan Team perform in Changchun Gymnasium in Changchun, capital of northeast China's Jilin Province, June 17, 2020. In order to meet the new demand of nationwide fitness amid COVID-19 epidemic outbreak, a series of online and offline fitness activities kick off in Changchun on Wednesday. (Xinhua/Zhang Nan)

Members of Sunset Fitness Yangko Team perform in Changchun Gymnasium in Changchun, capital of northeast China's Jilin Province, June 17, 2020. In order to meet the new demand of nationwide fitness amid COVID-19 epidemic outbreak, a series of online and offline fitness activities kick off in Changchun on Wednesday. (Xinhua/Zhang Nan)

Members of Changchun Rope Jumping Association perform in Changchun Gymnasium in Changchun, capital of northeast China's Jilin Province, June 17, 2020. In order to meet the new demand of nationwide fitness amid COVID-19 epidemic outbreak, a series of online and offline fitness activities kick off in Changchun on Wednesday. (Xinhua/Zhang Nan)

Members of Changchun Rope Jumping Association perform in Changchun Gymnasium in Changchun, capital of northeast China's Jilin Province, June 17, 2020. In order to meet the new demand of nationwide fitness amid COVID-19 epidemic outbreak, a series of online and offline fitness activities kick off in Changchun on Wednesday. (Xinhua/Zhang Nan)

Members of Sunset Fitness Yangko Team perform in Changchun Gymnasium in Changchun, capital of northeast China's Jilin Province, June 17, 2020. In order to meet the new demand of nationwide fitness amid COVID-19 epidemic outbreak, a series of online and offline fitness activities kick off in Changchun on Wednesday. (Xinhua/Zhang Nan)