While the main focus is on Pilates-based technique, Kries combines ballet and yoga movements in all three workouts to create an exciting routine that is challenging to all muscle groups but easy to follow. If you can't tell your grand plié from your plank position, don't worry--the movements are simple and repetitive, and you can always stop the segment and start over without wearing yourself out. The best thing about Kries's class is that you may not feel like you are working hard, but you will be sore the next day, as long as you focus your attention and listen to your body. The class really emphasizes breathing as a way to intensify your workout, and it is absolutely critical that you follow the directions precisely in order to feel the true benefits of the routines. In fact, the DVD allows you the luxury of three camera-view choices to really perfect your form.

Set to a groovy Latin drum beat, the first two segments work on strengthening the major muscles of the arms, back, legs, and, of course, the abdominals. The final stretching segment can be a little daunting in light of Kries's remarkable flexibility, so if while reaching toward your toes she encourages you to "say hello to your knees," don't be ashamed if you need a bullhorn the first time--stick with Kries and you'll be kissing them hello in no time. --Daphne Durham