Ground Force Distribution & Running Injury?

There is a difference between Ground Force and Pressure. Something every runner should know.

Ground Force is the "Reacting force provided by the surface you are running on" Dr. Enoka Textbook on Neuromechanics pg.77.

Ground Force can be the Road, the Trail, the Track or a Noraxon FDM-SX Pressure Platform pictured above, or a Noraxon FDM-Treadmill.

Our Noraxon devices make it possible to see Ground Force (GF) in terms of Newtons (N).

Pressure on the other hand "is a Measure of the Distribution of Calculated Force over Area" Dr. Enoka pg 81. Pressure is measured in Newtons of Force per Centimeter Squared (N/cm2).

Runners judge for yourself from these simple measurements in the video below the following question?

According to the National Center for Biotechnology Information (NCBI) "79% of runners are injured in a give year", Why is this? Why so Many Injuries with all the great running shoes we have seen since 1970?

  • Why Do You Buy Running Shoes? 
  • What is a Running Shoe Supposed to Do? 
  • What is your Running Shoe Need? 
  • How do they work or not work?

Have we lost sight of what it is a running shoe should do? I had the pleasure to know and work with one of the Originators of Running Shoes, Mr. Arthur Lydiard and he created them out of necessity to Cushion and Protect the Kinetic Chain from Ground Force Reaction and Musculoskeletal Damage.... Injury Prevention!

Enjoy the Video:

The purpose of this blog is a simple one: Awareness! Education! Why Not seek to understand just what it is your body is up against out there running for your health! I once ran a 4:03 mile and a 29:38 10k, but at the age of 34 I was diagnosed with Osteoarthritis and by 40 had both hips replaced... NOT FUN! I have not ran for fun or competition since I was 34. Don't be Me! As for Performance and all you young bucks running barefoot, think about your future, think about your joints...

Here are some very simple but very effective drills you can do standing still and moving your Center of Mass around to strengthen your feet, stability muscles and improve your feel for real balance.  In my opinion, many injures and future pain and loss can be prevented with a simple Structural Assessment we can do in 15 minutes. Inform+Educate+Perform= Prehabilitation!
Coaches, Teachers, Facilitators we have new tools we can implement and change outcomes!

For Information on how to secure Noraxon Diagnostic Tools for your Team or Program, do not hesitate to Call me at 1.719.289.0351.  or email me at
Please get our Coaching Video - The Science of Running - @ Coaches Choice filmed on location @ West Coast Super Clinic - Sacramento City College.

"Dissipation of Ground Forces  and Injury Prevention"