Human Gait Adapted for Efficient Walking at the Cost of Efficient Running

I have posted other articles outlining the disadvantages striking with the heel first while running. This study, to be published in March 1 print issue of The Journal of Experimental Biology, measured the energy economy in walking heel first verses on the toes and the ball of foot.

"Our study shows that the heel-down posture increases the economy of walking but not the economy of running," Professor David Carrier, senior author

This would definitely explain the increased torque realized in the lower extremity chain when running.

Carrier speculates that a heel-first foot posture "may be advantageous during fighting by increasing stability and applying more torque to the ground to twist, push and shove. And it increases agility in rapid turning maneuvers during aggressive encounters."

Work Smarter Not Harder!
Dr David Marcon
Cincinnati, Ohio
drdavidmarcon.com