People perform a gymnastics routine on a square on August 08, 2011 in Haozhou, Anhui Province of China. People all over China mark National Fitness Day on Monday in their own ways. (Photo by ChinaFotoPress/Getty Images)

People play Tai Chi Soft-Strength Ball on August 08, 2011 in Fuzhou, Fujian Province of China. (Photo by ChinaFotoPress/Getty Images)

Children play rollarskate on a square on August 08, 2011 in Haozhou, Anhui Province of China. (Photo by ChinaFotoPress/Getty Images)