How Our Ancestors Ate? By Forefoot Running

Although the evolution of human running over the course of millions of years cannot be observed, witnessing the damaging effects of heel strike running is enough to make you believe that hominids, who ran long distances barefoot, were probably not running around on their heels.

 

How our ancestors ate was by running whereby forefoot running made it possible for early humans to interact safely with the ground while running barefoot. Running was the only effective strategy to hunt for food.

Even though our ancestors were defenseless in appearance -they didn’t have sharp claws, or bone crushing jaws, we somehow evolved as dominant predators.

Around 2 million years ago, early humans ate meat and lots of it.   We were the superior hunters.

An article by Lars Werdelin in the 2013 November issue of Scientific American, suggested that as soon as our ancestors hunted meat, we are to blame for the extinction of other carnivores:

  • “The rise of the new meat-eater, humans, led to the loss of the big carnivores and triggered large-scale changes farther down the food chain, affecting the prey animals and even the plants those creatures ate” Werdelin said.

But, how did we do it?  The answer is endurance running.
How our ancestors ate? By forefoot running

Humans persistently ran after their prey until it became exhausted.

But wait a minute, more than half of recreational runners sustain a major running related-injury each year.

 

How did our ancestors avoid injury, especially if they ran barefoot?  Doesn’t running expose the body to greater forces than walking?

Compelling evidence indicates that unlike most runners today, our ancestors may have been forefoot strikers, not heel strikers.

Heel strike running may come with a series of problems starting with the shock wave produced at heel strike which penetrates through the heel, up the body and into the head.

  • the peak vertical ground reaction force generated at heel strike is twice as high during running than walking and may increase to 3-4 times body weight when running at faster speeds

Therefore, it seems highly probable that our ancestors adopted a forefoot strike running style to reduce impact on the leg and body as forefoot strike running involves greater leg compliance and peak force reduction on the skeletal system:

  • at forefoot strike, impact forces are better dissipated due to the larger surface area of the forefoot (the forefoot has a greater surface area than the heel)

Undoubtedly, most running populations are heel strikers, but many elite distance runners and habitual barefoot runners are forefoot strikers:  Forefoot runners have a relaxed rearward leg swing and dont shuffle like heel strikersPerhaps the smoking gun in the case of injury prevention in running will turn up not among the running footwear, but among how humans were originally designed to run based on what we now know about the role of endurance running in the unprecedented hunting ability of our ancestors.

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References:

Bramble, DM and Lieberman, DE. (2004). Endurance running and the evolution of homo. Nature, 432:345-352.

William et al. (2010). Evolutionary robotic approaches in primate gait analysis. Int J Primatol, 31(2):321-38.

Bretta Riches

Bretta Riches

"I believe the forefoot strike is the engine of endurance running..."

BSc Neurobiology; MSc Biomechanics candidate, ultra minimalist runner & founder of RunForefoot. I was a heel striker, always injured. I was inspired by the great Tirunesh Dibaba to try forefoot running. Now, I'm injury free. This is why I launched Run Forefoot, to advocate the health & performance benefits of forefoot running and to raise awareness on the dangers of heel striking, because the world needs to know.
Bretta Riches

P.S. Don't forget to check out the Run Forefoot Facebook Page, it's a terrific place to ask questions about forefoot running, barefoot running and injury. I'm always happy to help!

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