This video teaches you how to do the hollow body hold correctly. It is a great exercise for your core and hits an area most people do not work – the transverse abdominals. Be sure your lower back does not leave the floor and that you are constantly pulling in your abdominals. If this is easy extend your legs out further then bring your arms overhead. Start slow and as you get stronger shoot for 5 sets of 60 seconds with 30 seconds of rest.