V-Up

The difference between a V-up that builds abs and one that turns into a thrashing mess is keeping your shoulders off the floor. Lie on your back with your arms overhead and legs straight. Simultaneously pull your chest toward your knees and bring your legs up to meet it, creating that V shape. Your momentum should come from your core tightening all at once, not from swinging your legs. Pause at the top, then lower back down with control — don't flop. If you can't do it cleanly, start with knees bent until your core strength catches up.