The name explains it all. Target your butt, hamstrings and abs in this 60 minute HIIT workout.
30 second intervals – each circuit has 1 hamstring exercise, followed by an ab move, then hamstrings, abs, and butt. Each circuit is performed 3 times each.
If you want to change it up a bit, on the 2nd and 3rd circuits, do an upper body exercise instead of an ab exercise, still going with the 30 second intervals.
Every circuit changes time intervals and structure to keep the body guessing.