The Achilles tendon connects and anchors your calf muscles to your heel bone. When your calf muscles contract (shortens), they pull on the Achilles tendon. The structure of a tendon will change if repetitive strain is put on it. Either through compression or tension. There are 3 stages of an Achilles tendon, where it becomes inflamed, stiff and progressively gets worse over time. Calf pain anywhere along the back of your Achilles tendon, but more than 4 centimetres above the heel and before the tendon and calf muscles connect.
Pain located at the base of your heel, where the Achilles tendon anchors its fibers directly onto the calcaneus. The biggest cause is excessive overuse or overburdening of the Achilles tendon, which leads to heel pain that feels worse when you walk, run uphill or climb stairs. The anchor of your calf becomes swollen, painful when stretched. Jumps & explosive calf muscle contractions makes the pain worse & ease with rest.
Torn Achilles tendon
Sudden sharp pain in the Achilles tendon, often described as if being shot in the leg. A loud snap or bang is heard when it happens. Sudden sharp pain that subsides quickly, may leave you thinking ‘its not that bad’, until you feel the weakness to stand on your leg.
Retrocalcaneal & Achilles bursitis
Bursitis is inflammation of a fluid filled sac or cushion (bursa) over the a bony point at the back of your calcaneus & Tibia, and your Achilles tendon. This condition occurs when the bursa becomes irritated, compressed or infected. With repetitive bending & straightening of your ankle triggers the bursa to get inflamed and painful at the back of your lower leg & calf.
Flexor Digitorum muscle strain
This muscle sits deep on the inside of your calf and bends all your toes, like a bird’s claw holding onto a branch. Flexor Digitorum muscle can be stained from excessive clinching of your toes as you run. Check the inside of your shoes to see this. “Hammer toe” makes the problem even worse. Very common in dancers, acrobats & long distance runners. Pain usually radiates from your calf, over the arch & into your toes as it gets worse.
Big toe strain or Flexor hallucis longus tendonitis
Flexor hallucis longus strain is a tear along the muscle that bends your big toe forwards causing pain on the inside of the ankle & up the calf. Like a wall climber that hooks their toes into a wall crack, if it slips out and forces the toe to bent backward, injures this muscle.
Flexor hallucis longus tendonitis is inflammation or degeneration of the tendons. The disorder, which can occur when the tendon is subjected to excessive or repetitive stress, like wearing flip-flops. This tendons grasps your flip-flop, to prevent it from sliding off. Calf pain specifically along the length of the tendon as it passes around the back of the medial malleolus and into to the arch of your foot.