The quadratus plantae muscle is a primary contributor to plantar fasciitis and calcaneal compartment syndrome. Pain is felt in the heel.
The flexor digitorum brevis muscle is located on the bottom of the foot. It can cause a sharp stabbing pain in the ball of the foot that becomes a deep ache when resting.
The adductor hallucis muscle contributes to pain in the ball of the foot just under the toes. It can be a primary contributor to plantar fasciitis.
The abductor hallucis muscle is located on the bottom of the foot. It can cause pain in the ankle and heel. When trying to rest, there is a deep aching pain in the heel and ankle.
The abductor digiti minimi foot muscle can cause ankle pain similar to a sprained ankle. Pain is felt on the outside of the heel and ankle.
The peroneus tertius contributes to pain on at the top of the foot, ankle and heel. Pain greatly increases when walking and jogging.
The peroneus longus and peroneus brevis contribute to pain on the outside of the ankle and foot. The muscles are contributors to weak ankles and foot drop.
The flexor digitorum longus muscle contributes to pain in the foot and lower leg. It plays a role in foot cramps, hammertoes, and claw toes.
The tibialis posterior muscle contributes to pain in the lower leg above the heel. This pain will often descend into the heel and the bottom of the foot. The pain may radiate into the lower calf. Dysfunction in muscle contributes to fallen arches and weak ankles that collapse inward.
The gastrocnemius muscle contributes to pain in the back of the knee, lower leg, ankle, and foot arch pain. The muscle is known to contribute to lower leg cramps.
The soleus muscle can cause and contribute to pain in the heel, ankle, and back of the knee. It can also cause pain in the low back on the same side of the affected leg. Dysfunction of the soleus muscle can also contribute to swelling in the foot and ankle. Occasionally a trigger point at the bottom and outside of the muscle can contribute to pain in the jaw and side of the head.
The piriformis muscle contributes to pain in the low back, buttocks, hip, and hip joint, pelvic area, and pain down the back of the thigh.