4 HOLLOW BODY CORE WORK
You will need two blocks for this exercise. From your back, take one block between your palms and one between your knees. Lengthen your arms straight overhead, pressing firmly into the block. Lift your head slightly off the ground so your ears are in line with your biceps (your chin will draw slightly down). Extend your legs off the ground to about a 45-degree angle, squeezing the block between your knees to engage your lower abdominals. Your lower back should be drawing down to the ground, your belly drawing in. Keep your legs as straight as possible. Hold this position for 20 seconds, then repeat 3–5 times.