WELL, NOW THAT THE BAREFOOT-RUNNING FAD IS OVER, I GUESS IT’S TIME: Meet the Ultra-Fat, Super-Cushioned Running Shoe. “Can fat-soled shoes that appear to have been constructed in part from marshmallows help you run better? The first study of a new kind of thickly cushioned running shoe suggests that this type of footwear may not make running any easier. But it probably also will not make it harder. And nobody knows yet whether these maximalist running shoes, as they’re called, are the answer to preventing the painful injuries that sideline as many as 90 percent of runners at some point.”