Exactly How Kate Hudson Gets Her Rock-Hard Abs, According To Her Trainer

While Pilates helps lengthen and tone your body, don’t underestimate working up a good ol’ sweat. Stuart, who has a dance background, also fits in cardio with the Pretty Happy: The Healthy Way to Love Your Body author.

“I think cardio is really important, not necessarily running a long distance, but doing something that will get your heart rate up which is why we love dance,” Stuart says. “Kate and I grew up dancing and it’s a great way to burn it off.” (Dance your way fit with High-Intensity Dance Cardio, the first-ever socanomics DVD!)

If you’re not in the mood to shake it off—or aren’t as coordinated as Stuart and Kate—have no fear. Stuart also suggests running, or taking a spin or Vinyasa flow yoga class. “You name it—we always try new things,” she says of her longtime client.

Related: 7 Simple Exercises That Show Results After One Workout