Power Yoga is a fitness-based vinyasa practice. An offshoot of Ashtanga Yoga, it has many of the same qualities and benefits, including building internal heat, increased stamina, strength, and flexibility, as well as stress reduction.
Teachers design their own sequences, while students synchronize their breath with their movement. The original Power Yoga was developed and founded by Beryl Bender Birch, but is now a term used to describe many vigorous vinyasa styles.