What's so cool about HOT Yoga? There is no tree-hugging or pretzel-twisting in our HOT Power Yoga class! Power Yoga is essentially yoga with brawn. It's the American interpretation of ashtanga yoga, a discipline that combines stretching, strength training, and meditative breathing. But power yoga takes ashtanga one step further. Many of the poses (also called postures or their Sanskrit name, asanas) resemble basic calisthenics -- push-ups and handstands, toe touches and side bends -- but the key to power yoga's sweat-producing, muscle-building power is the pace. Instead of pausing between poses as you would in traditional yoga, each move flows into the next, making it an intense aerobic workout.