Kim Nieves instructs the following:
Barre is a blend of yoga, Pilates and functional strength. This practice is designed to strengthen and lean out your overall body with a variety of low impact exercise using mat work, light weights, bands and gliders. You’ll definitely work up a sweat and feel a burn like no other. Grippy socks required. Perfect for all fitness levels.
Insanity is a 45 minute class based on interval training...short intense burst to increase your heart-rate and challenge you to the max. You'll shed hundreds of calories as well as build strength and stamina. There will be no time to be bored in this class!