McKayla Maroney: From Olympic Champion To Selfie Queen (PHOTOS)

American artistic gymnast McKayla Maroney rose to fame when a screen shot of her facial expression after she won the silver medal after the vault finals during the 2012 Summer Olympics in London became a meme. And while Maroney is best known as an Olympic champion and the "not impressed" girl, she's slowly gunning for another title: social media star and selfie queen.

The 19-year-old has been inconsistent in her gymnastics training because of health complications, NBC Sports reported. She hasn't competed since winning the Word Championships vault title in October 2013 because of a March 2014 knee surgery. Her recovery was slow, and she also suffered from adrenal fatigue.

Martha Karolyi, the U.S. national gymnastics team coordinator, spoke about Maroney in August and said she doesn't think Maroney is still training for the 2016 Rio Olympics.

"I just talked to [one of Maroney's coaches] Galina [Marinova at the Secret Classic the week of July 25]," Karolyi told NBC Sports. "She said [Maroney] still looks like [she] has some heart problems, so she was in and out of the gym. So I feel like it will be very hard at this moment if she is not included in a very regimented training because it mostly will be like it happened in the last cycle with some of the girls."

But Maroney has been very active on social media, more recently with Instagram and Snapchat. Most of her posts are selfies where she shows off her latest makeup look and outfit choice. She's earned a following of more than 700,000 followers on Instagram alone, and many of her selfies earn more than 20,000 likes.

Check out some of Maroney's best Instagram looks in the slideshow above.