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
Burpee Countdown Workout - via @Kaila@HealthyHelper
Work out routine, crunches, jumping jacks, squats, push ups
Tough Mudder Workout 1...this looks seriously intense! Great if you're training for a Tough Mudder event! #workout #fitness
Killer Lower Body Countdown Workout || lushiousLIFTS.com
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
Image detail for -... plyometric exercises to create my own plyometric countdown workout
Countdown Cardio Workout- looks easy, but burns those calories!