I like this. Seems easy but wait til you get to 5...
Killer Countdown: quick routine that incorporates exercise you already know how to do in a high intensity format that allows you to get your heart pumping!
Jumping Jack Countdown Total Body Workout
Work out routine, crunches, jumping jacks, squats, push ups
Killer Lower Body Countdown Workout || lushiousLIFTS.com
Tough Mudder Workout 1...this looks seriously intense! Great if you're training for a Tough Mudder event! #workout #fitness
Countdown Cardio Workout- looks easy, but burns those calories!
Image detail for -... plyometric exercises to create my own plyometric countdown workout
Unapologetically You: Workout Wednesday - 100 Rep Countdown
Today I did this pyramid workout. I must have been in a groove when I got to the 7th curcuit because I actually did 10 crunches. LOL