I like this. Seems easy but wait til you get to 5...
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!
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!
Burpee Countdown Workout - via @Kaila@HealthyHelper
New Year's Eve Countdown Workout- FREE Printable
Unapologetically You: Workout Wednesday - 100 Rep Countdown
Killer Lower Body Countdown Workout || lushiousLIFTS.com
Image detail for -... plyometric exercises to create my own plyometric countdown workout
Jumping Jack Countdown Total Body Workout