This is the advanced form of the V-Up. We decided to add it into the June Challenge to get everyone working toward it if it’s a new movement. If the straight-leg V-Up is just not there (and if you are unable to keep your back straight), then do the bent leg version!
Lie supine on your back. Arms are straight in front of of you. Keeping your torso straight and neck long, come up to a V-shape with your legs straight. Pause at the top and contract those abs! And now control yourself back to the floor in supine. Repeat.