Go Long, Get Fast, Burn Calories: Treadmill Run

Go Long, Get Fast, Burn Calories: Treadmill Run

Cardio the day after strength training is a great way to flush new blood into your tired muscles; so for day two of our Bikini Body Countdown plan, we're doing some cardio after yesterday's strength-training session. This 45-minute workout starts at a slower place, but to keep things interesting, the speed picks toward the end, making this a negative-split run. It takes a little discipline to start slowly and build speed throughout your workout, but when the time comes to run faster, your body will be ready for the challenge. Doing this type of workout consistently will help increase your overall running speed, too.

If running isn't your jam, try this 45-minute elliptical workout, or bike, swim, or Zumba — it doesn't matter how you get your heart rate up, just keep moving for three-quarters of an hour. Be sure to enter our Bikini Body Countdown Getaway to win a three-night stay at the El Ganzo hotel and spa in Los Cabos, Mexico.