Pilates has become popular for good reason. It works core muscles in ways that help avoid injury. It can be a great way to help you get in shape but takes time to learn. If you stick with it, you'll find the time, money and effort spent worth the investment.

U.S. courts have ruled that the term "Pilates" is not a trademark, so you can find the name attached to many methods and classes. That has expanded its availability but also invited a lot of inexperienced teachers into the Pilates world. Be sure to find an instructor trained from a respected certifying organization.

"I started taking Pilates classes four years ago and it changed me. Not only did I start to feel stronger very quickly, but I felt taller and more graceful, peaceful and confident. My legs began to look long and slim, my stomach became the flattest it had ever been and my rear end became as tight as a drum!" -- iVillager aa1121

"I like Pilates, but it takes a while to learn. And even though some of the poses make me break a sweat, I don't feel any cardio gain. It is, however, great in helping to reduce stress!" -- An iVillager

See what other iVillagers have to say and weigh in with your own comments and stories on the Pilates Message Board.