A New Way to Look at Running Efficiency

People use the word running efficiency instead of correct running form because there is the belief that there is really is no "correct" way to run. However, there are some factors that are associated with faster running. In fact, there are many people in the US and the world who spend their lives researching precisely what makes up running economy.

Running economy is a term used to describe how efficiently a runner can use their body to generate speed. The more efficient your body converts oxygen that you breath in into speed, the higher your running economy. Sports scientists at the Research Institute for Olympic Sports in Finland measured many factors related to speed and their correlation with running economy including:

VO2max
Stride Length
Stride Frequency
Speed Range (the difference between the lowest and highest speed an athlete runs during a given distance)
Maximal Running Speed
Ground contact time (the amount of time your feet spend on the ground with each step)

The authors found that the ONLY FACTOR THAT CORRELATED WITH SPEED WAS GROUND CONTACT TIME. VO2 max, stride length, speed range, etc did not correlate with speed. The more time runners spent in the air (i.e. the less time they spent on the ground), the faster they went.

So what does this mean? As Dr. Romanov of Pose-Tech running stresses: Pick up your feet!! Run lightly and gracefully. Clunking on the ground is not associated with faster speeds so concentrate on the upward movement and not the actual steps you take.