Many essential CrossFit workouts have names and this one is called Annie, but it’s okay if you just want to call it hard.
“It’s a great way to test your double unders and core stamina. You are breathing hard, your abs are worked to the point of cramping, and your shoulders will burn,” says Leblanc-Bazinet.
You’ll do five sets total, each time doing 10 fewer reps than the previous set. There’s no rest between sets, just hammer through.
Start with 50 double unders. If you can’t do multiple double unders, do two normal jumps (100 instead of 50) until you’re comfortable with double unders. Next, do 50 sit-ups. Then repeat until you’ve reached sets of 10. Here’s what that looks like:
50 double unders
40 double unders
30 double unders
20 double unders
10 double unders