The arch of the foot is primarily supported and held up by tendons that extend from the calf muscle.If the arch falls from lack of proper support, the calf muscles will be over worked, resulting in cramping, fatigue and muscle pain.
Restless Leg Syndrome
Aching or stiff/tight pain in the lower backside of the leg.
Most cases of calf pain are the result of improper alignment at the feet. In this case, a strain could develop because the calves are being used to compensate for the lack of proper support.
The Tibialis Posterior muscle connects from the bottom of the arch to the calf. When the arch is not supported properly and drops lower to the ground, the calf muscle has to work harder. This constant tension and pulling strains the muscle.
Orthotics help provide proper arch support while reducing pressure and stress on muscles of the calf.