Gossip outlet TMZ chased down Barack Obama's personal trainer Cornell McClellan to get an idea of what it's like to train the president in the gym. During the interview, McClellan revealed some behind-the-scenes information not previously known.

"It's an easy job," McClellan said. "They love to work out so much, so it makes my job very easy."

When asked if it is hard to push the president, McClellan said, "Not at all," and called Obama an "overachiever" who "likes to work hard." He added that the president doesn't turn down any exercises given to him. 

McClellan revealed that President Obama has a specific philosophy when it comes to working hard in the gym -- Obama calls it "raging against death." Video proof below:

McClellan ended the interview with another bit of inside information on Obama: "Six pack is intact," he said with a smile.

McClellan not only serves as the first family's trainer but also as a member on the President's Council on Fitness, Sports, & Nutrition.

From TMZ: