More to explore:
workout | ... core workout, somewhat similar to my super sweaty ab circuit workout
HIIT circuit training
Cardio and Abs Circuit Workout--alternated each set with arm free-weight exercises--definitely a great workout!
A collection of circuit workouts: Cardio, strength and plyometric moves!
I did this and ran the stairs yesterday and it is an awesome workout. My glutes are on fire today!
Cardio Circuit Workout
No Equipment Needed Cardio Circuit - this one would be great while traveling, could do in hotel room
Fire up your core for a flat belly! This is a great full-body workout that targets the abs and back.
Cardio Core Circuit from RunPrettyBlog.com - plus more workouts for the abs and core.
No Equipment Needed Cardio Circuit Workout
Lauren Conrad's calorie blast workout
exercise ideas for when I don't want to leave the house
Core + Cardio Circuit with the Rower (via Bloglovin.com )