December 14, 2014
12 Days of Christmas Workout Challenge - Day #2: Spartan HIIT Run
Today is the day to kill it with the cardio workouts, so it's time to find your favorite workout and kick yourself into high gear.
Here is a great HIIT cardio workout to do: the Spartan HIIT Run!
Spartan HIIT Run
Here's how to do the Spartan HIIT Run:- Full-on sprint for 30 seconds
- Jog for 90 to 120 seconds