The plank challenge may sound a bit daunting but don’t be put off, the whole point of a challenge is that you start where you are right now & work up to the ultimate end point. Covering various types of plank, Jo starts with the beginners option each time before moving on to intermediate & advanced. Working towards a short routine at the end. It’s a perfect way to build strength & work on the quality of your movements. Planks target almost every group of muscles in the body, they increase muscle mass & strengthen the skeletal system, prevent injury, improve posture, focus & concentration. Why would you say no?!