apJoin trainer Khetanya Hendersona for a five-minute Pilates core workout joined by Poofy Moffitinoa and Ellie Avilesa. In this quick yet effective routine, you'll work your way through crunches, roll-ups, and classic Pilates series of fivea. In all, it's only five minutes long, but you're sure to feel your core after this workout. All you need is a mat to get started!pbr pHendersona is a certified Pilates instructor, NASM-certified trainer, and former collegiate soccer player. In addition to teaching all kinds of fitness, she's also an actor and dancer, appearing in commercials and on stage with Cirque du Soleil.