Why it's important By moving your arms and legs independently, you're strengthening the abdominals.
How-to Lie on your back with your arms extended upward so your hands are directly over your shoulders. Elevate your legs and bend your knees to 90 degrees (top). Contract your abs while keeping your spine in a neutral position (you should be able to slide your fingers underneath your lower back). Simultaneously extend your right arm back and your left leg out and down, stopping just before either touches the floor (bottom). Return to start position and repeat on the opposite side. Aim to do two sets of 20 repetitions.
Start slow This is a challenging movement, so start with arms only, then legs only. Once you've mastered each on their own, you can add them together for the full dead bug.
Technique trick Your core should remain immobile throughout the entire movement.
