ZUMA Press Inc / Alamy Stock Photo Greg Glassman is the founder of CrossFit. He stepped down from ... being around other athletes, the coaches, the events themselves... and I don’t see why ...

Read: not at all. "You really don't want to do CrossFit in a shoe that has a cushioned, springy sole, like a running sneaker," says Kayla Tote, co-owner and head coach at CrossFit for the People ...