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    Burn more fat: Just add intervals to your run

    Interval training-speeding up and slowing down at set times-is one of the best ways to burn more calories during your run (plus improve speed and stamina). It's also a great way to turn walking workouts into running ones. Here are two plans to try.

    Health.com: 20 ways to torch 200 calories

    For newbies

    • Pick up the pace (30 minutes).
    • Walk at a brisk pace for 5 minutes.
    • Run for 3 minutes at a comfortable but challenging pace.
    • Power-walk for 2 minutes to catch your breath.
    • Repeat steps 2 and 3 three more times.
    • Walk at an easy pace for 5 minutes.

    Health.com: 10 ways to walk off fat faster

    FYI: As you gain strength, spend more time running and less time walking.

    For seasoned runners
    • Go faster, stronger, longer (45 minutes).
    • Walk at a brisk pace for 3 minutes, then run at an easy pace for 7 minutes.
    • Run as hard as you can for 2 minutes.
    • Run at an easy pace for 3 minutes.
    • Repeat steps 2 and 3 four more times.
    • Cool down with 7 minutes of easy running and 3 minutes of walking.

    Health.com: How to run faster

    FYI: If you focus on taking short, quick strides, your efficiency will improve-and your speed will, too.