Abs & Back Training With Tom Seabourne, PhD Learn how to design a core strength, flexibility, and power program for your clients. To access this content, you must purchase Abs & Back Training, OnDemand Monthly Subscription Payment Plan, OnDemand Annual Subscription, OnDemand Monthly Subscription, OnDemand 6-Month Subscription or OnDemand 2 Year Subscription or log in if you are a member.