Final answer:
The arches of the foot help reduce the incidence of injury and pain to the lower leg.
Step-by-step explanation:
The arches of the foot help reduce the incidence of injury and pain to the lower leg. When the foot comes into contact with the ground, the arches absorb the impact and distribute body weight side to side and to either end of the foot. This prevents excessive shock from being passed into the lower limb and body, reducing the risk of injury.