Core stability is a key part of yoga and identifying and engaging these muscles can help to improve strength, core stability and protect the lower back. Students can sometime find it difficult to isolate these muscles and the instruction ‘engage core’ is frequently used as a reminder during classes. It would be lovely if little lights came on when students have ‘engaged’, the smiles when I say ‘and of course you all have your core muscles engaged’ tells me another story. I frequently remind students in my class to engage their core muscles before and during sequences and asana, its as much a reminder for myself as them! For those who find it difficult to identify and turn on the core this excellent 3 minute 3-D video provides a simple and straight forward explanation. Core Stability 3-D video