Core Work (Last Updated On: July 4, 2009) 4 Day Split – Kickbox Core work. Post navigation Band Outer Thigh WorkTwo Ab Workouts Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Save my name, email, and website in this browser for the next time I comment. This site uses Akismet to reduce spam. Learn how your comment data is processed.