Challenge your core with this 60-min vinyasa yoga practice that incorporates variations of plank and lunges while opening up shoulders and chest. Expect lunges, twists, and warrior poses; finish off with backbends that culminate with ustrasana (camel pose) and wind down with easy twists.Challenge your core with this 60-min vinyasa yoga practice that incorporates variations of plank and lunges while opening up shoulders and chest. Expect lunges, twists, and warrior poses; finish off with backbends that culminate with ustrasana (camel pose) and wind down with easy twists.