Pilates is one of the hottest fitness trends out there, and I can see why. It's a great workout for your core muscles, and strengthening your core has a number of great benefits, including helping your balance and posture, not to mention bringing you one step closer to a flat stomach.

But going to your first Pilates class can be a bit overwhelming. Unless you're in a beginner class, your instructor will use all sorts of terms that might be confusing -- sit bones, transverse abdominus, obliques and so on. If you're considering taking up Pilates, check out this handy guide from Think Pilates. They've covered all the proper terms -- so you can navigate your first pilates class with ease.