Ashley Honneycutt was giving me a quick overview of the class we were headed to when one thing in particular caught my attention: “… and it’s all done on a roller.” Knowing that I’m a runner and sensing that I was about to wheel and make a break for my car, she grabbed my arm. “It’s not that kind of roller. Not the roller you use for running. It’s softer.” Softer than rock wasn’t that reassuring, but I followed her anyway.