Achilles Tendon Facts
When you think of strength, your mind might first go to those burly people on ESPN 2 who pull buses with their ears and rip phone books in half (although the latter seems much easier to do nowadays). You might not imagine such strength residing within your own body in everyday life, but it’s there. Just take a look at your Achilles tendons.
The Achilles tendon is a thick cord that connects the heel bone to the calf muscle. Every step you take, your Achilles forces the heel to follow along with your contracting calf. It is essential to movement.
Given its location and the forces it needs to support, the Achilles is the largest and strongest tendon in the body. Want a show of strength? Just hop up and down. In that very act, your Achilles tendons are withstanding forces up to 500 kg. That’s more than 1,100 pounds! Your tendons take forces like this throughout your lifetime.