Posted in Level 1Premium Content by d2lAdminPosted on October 5, 2017October 15, 2020 Video 5: Core Training Core Training - IntroductionTogether we will work on improving the function of the muscles of the core. A stronger core improves the way our abdomen looks, but also provides support for our back to reduce back pain caused from weakness. This content is for paid members only.Log In Register Please login or sign up to view this content.