Chop-Chop is a brisk cardio workout with a name that doubles as its tempo instruction. Butt kicks and scissor chops alternate through six of the seven stations - twenty reps each - with a block of split jacks planted in the middle, and the whole thing moves at the pace the title demands: quickly, quickly.

The alternating pattern is a deliberate division of labor. Butt kicks keep the legs cycling - heels snapping to glutes, hamstrings firing, heart rate climbing - while scissor chops hand the tempo to the shoulders, arms sweeping horizontally across the body at full extension. Legs, arms, legs, arms: neither half of the body ever rests, but neither carries the whole load for long, which is exactly how the pace stays honest for a hundred and forty reps. The split jacks in the center are the one moment everything works at once - legs scissoring front to back while the arms swing in opposition - a full-body coordination check dropped in right when the rhythm was getting comfortable.

Snap your heels to your glutes on the butt kicks with your knees pointing down, staying light on the balls of your feet. Keep the scissor chops at shoulder height with arms fully extended - the crossing motion should stay crisp for all twenty, not degrade into vague waving. In the split jacks, switch your legs and arms together in one beat, landing soft with a slight bend in both knees.

Twenty here, twenty there, no dawdling in between. Chop-chop - the name was never a suggestion.

Make it Harder: Speed up every block while keeping full range on the chops.

Make it Easier: March the butt kicks and step through the split jacks.