PiYo is an 8-week exercise program that is a blend of Pilates and Yoga. What Is PiYo? PiYo classes are motivating was to workout PiYo combines the strength training—and body lengthening—aspects of Pilates with the core training. PiYo is an 8-week fitness plan from Beachbody that combines the strengthening benefits of Pilates with the flexibility enhancing effects of yoga. PiYo LIVE is a strength fusion style format for people who like to sweat! Short bursts of. What is PiYo? beer, tea, pizza. So, combining the practices of Pilates and yoga will get you an intense full-body workout.