as far as whatcasked about the dude...I would say he is on something...It is Communist China and they would put them on mouse feces if they thought it would help.
Ridiculous to think that any "professional" athlete in China would be clean.
Look at the ex-GDR, they put 14 year old girls on steroids so they would perform better in sports, Chinese athletes are on everything under the sun, especially if you consider that China is THE manufacturer of raw powders for steroids or HGH in the world.
A few lucky (or unlucky) of them will be the lab mouse for new doping methods, gene manipulations or whatever. If a few of them die, it doesn't matter. Family gets a medal and money and no one will ask shit. The kids live in training camps away from their families, no one will ever know what happened. If they don't die and get a medal in sports, even better.