Cocoon
 

Cocoon

Lie back on the ground with your arms extended straight behind your head. Pull your knees in towards your chest, lift your backside off the floor and simultaneously lift your arms over your head to perform a crunch. Return to the start position and repeat.

Top tip: Lock out your arms above you for the entire rep. This’ll help open up your abs and work the muscles through a greater range of motion for faster ab-related gains.