Achilles Tendinitis

Achilles tendinitis occurs when the band of tissue that connects the calf muscles at the back of the lower leg to the heel bone, the Achilles tendon, becomes inflamed. This condition is a result of overuse from intense exercise, jumping, running, and other activities that strain the tendon and calf muscles.


  • Pain at the back of the leg and above the heel
  • Severe pain with prolonged running, stair climbing, or intense exercise
  • Tenderness or stiffness after rest
  • Mild swelling of the tendon
  • Crackling or creaking sound when touched or moved
  • Weakness in the lower leg

Common causes:

  • Repetitive or intense strain on the tendon
  • Rapid increase in the intensity, frequency, or duration of exercise
  • Exercising without warming up
  • Running on hard or uneven surfaces
  • Traumatic injury to the tendon
  • Deep squatting positions put more pressure on the Achilles

Risk Factor:

  • Exercise - running frequently, especially at high intensity and long distances, increase the risk
  • Flat Arch - can put more strain on the Achilles tendon
  • Muscle imbalances - can result in excessive strain on the calf and ankle
  • Poor flexibility in the calf muscles
  • A naturally flat arch (pes planus)