Lu Peidong, a 36-year-old personal fitness instructor, uses weight machines at a fitness center in Southwest China's Chongqing municipality, Feb 15, 2012. Lu said he lifts a total of 20 tons of weight every day, including barbells and lead blocks, in addition to aerobic trainings such as running. Lu is 1.84 meters tall and weight 100 kilograms. "I became obsessed with bodybuilding when I was a teenager, after watching a movie starring Arnold Schwarzenegger, who had beautiful muscles," he said. [Photo/CFP]

Lu Peidong, a 36-year-old personal fitness instructor, shows off his muscles, Feb 15, 2012. [Photo/CFP]