01/13/2012 08:18 am ET

Fit Links: Intervals vs. Endurance, Workout Music For 2012 And More

There are hundreds of wonderful sites on healthy living to be seen all over the blogosphere. Here at Fit Links, we'll introduce you to some that have caught our eye.

So you want to get in shape in 2012. You're more likely to stick to that resolution if you get specific about your goal and tackle it with the right fitness plan. Fit Bottomed Girls explains the differences between interval training and endurance training.

In 2011, the same tunes that got us grooving on the dance floor got our hearts racing in the gym. Can we expect more of the same in the world of workout music this year? One fitness DJ shares his predictions with Well + Good NYC.

It's not rocket science to think that if your knees or ankles or hips or feet hurt when you run on the sidewalk that it might be worth a try on a springy track or cushy grass. But runners who stick to soft surfaces aren't less injury-prone, according to the New York Times. So which running surface is best? FitSugar weighs the pros and cons.

For more on fitness and exercise, click here.