There's nothing particularly new about barre workouts. They've been plié-ing their way through cities for the past few years. But a few different types of classes are now setting the, er, bar a little higher. 1. Cardio Barre Inspired largely by ballet, it promises to strengthen, lengthen and tone your entire body through resistance exercises. Sound similar to other barre classes? It's not. Here's why: The pace is crazy-fast. You're doing tendus, grand battements and other ballet moves at lightning-quick speed, so your heart rate is up almost the entire time. …
