30 Day Plank Challenge FREE PRINTABLE –So you want a simple exercise move that

30 Day Plank Challenge FREE PRINTABLE –So you want a simple exercise move that

30 Day Plank Challenge FREE PRINTABLE –So you want a simple exercise move that will give you a rock hard core? PLANKS ARE THE ANSWER!! The plank helps develop strength in the core, shoulders, arms and legs. Even though you arent lifting any weight, you have to constantly squeeze your abs to hold the position. (Most people cant last 30 seconds on their first attempt, thats why we start out with 20 seconds on the first day and gradually build up.)

Source: HERE

You can try find out more about
30 Day Plank Challenge FREE PRINTABLE –So you want a simple exercise move that

JUST USE THIS FORM FOR SEARCH