This 20-minute Ab attack class will target your core and shred your mid-section. There are two sets of exercises, which you’ll go through twice. The second time you go through them, Ash will offer challenging variations, as well as some easier ones if you need them:

Round 1: full sit-ups, Russian twists, plank side steps, small crunches, L-crunches, plank knees to elbows, heel reaches, and single bent leg crunches

Round 2: feet in and out sit-ups, bicycle crunches, pyramid planks, back extensions, star sit-ups, side plank knee drives, rainbow tucks, and knee strikes.