This photo captures the importance of core strength when it comes to excellence in performance. Imagine how hard it is to sprint at maximum speed across a tennis court and then slow down in time to set the legs and the rest of the body and importantly the head, to then swing a racquet and make perfect contact. That is a strong core in action.
Check out this article for a great description of exactly what the core is, how to train it and importantly, why training it is vital for some many things in life including dealing with back pain.
