What Is the Best Surface to Run On?

What is the best surface or terrain for running? Roads, sidewalks, grass, trails, tracks and treadmills all have their pros and cons.

If You Have Knee Pain, Avoid Running on These Surfaces

For Runners, Soft Surface Can Be Just as Hard on the Body - The New York Times

What is the best surface to run on? - Quora

True or False: Running on Hard Surfaces Is Bad for Your Knees - Beth Skwarecki, General Fitness & Training Articles

Running - Wikipedia

Road, Trail or Treadmill: What's the Best Surface to Run On?, by Rob Myers

What Is the Best Surface to Run On?

The best surface to run on - Canadian Running Magazine

Running on Concrete vs Asphalt- Disadvantages of Running on Road

The Best Running Surface for Your Knees

What is the best surface for running?

What is the best surface to run on?