The core of the body refers to the abdominal regions, including the lumbar or the lower back. Having a strong and stable core is very important to make sure your entire body is balanced. Apart from that, a strong core helps you avoid back pain, reduces risk of injuries and keeps your body stable and aligned.
This class is made of postures that focus on the core region to bring strength as well as toning to the body. Even the breathing exercises should be focused on the core region, eg: Kapalbhati.
List of some of the core postures