Start as per the basic plank but from a pushup position. Brace your core and raise your body up until only your toes and hands are on the ground. Now squeeze your shoulder blades together and lean slightly to your left side. Touch your left shoulder with your right hand 5 times then repeat on your left side. That’s 1 rep. Do 5 reps total per side with 5 shoulder touches. Once you can perform 3-4 reps per side of 10 shoulder touches you are ready to progress to the Plank Around the World.