Chris Schmitz (right) lifts weights as instructor Andy Bayles watches his form during a class at CrossFit Atlanta on Thursday, December 13, 2012.
121213 Atlanta: Chris Schmitz (right) lifts weights as instructor Andy Bayles watches his form during a class at CrossFit Atlanta on Thursday, December 13, 2012. CrossFit training combines strength and aerobic exercises into a high intensity workout. Jonathan Phillips Special