Overview The Achilles tendon is the thickest and strongest tendon in the human body. It plays a very important role in most sport activities and is particularly vulnerable to overloading from repetitive running and jumping. The Achilles te…

Overview A more serious condition, according to ACFAS, is adult-acquired flatfoot, often cause by posterior tibial tendon dysfunction (PTTD). In this case, the tendon that supports the arch weakens and fails, leading to a rigid flatfoot wh…