<prompt> Most common cause of insertional tendonitis of tendoachilles is -OveruseImproper shoe wearRunners and jumpersSteroid injections  <response>: Achilles tendon injuryAchilles tendon is the thickest and strongest tendon in the body and is also the one of the most commonly injured tendon in the body.The most common Achilles tendon injuries are :-Achilles tendinosis formerly called Achilles tendonitisAchilles tendon ruptureAchilles tendinosis Achilles tendonitisAchilles tendonitis is a condition that develops over time and is associated with degeneration of the tendon and inflammation that causes pain.Achilles tendonitis is described as insertional or non-insertional:-Insertional achilles tendonitis :- Occurs where the achilles tendon interts into the calcaneum, i.e. at the tendon-bone interface.Non-insertional achilles tendonitis:- Occurs about one to two inches 2-5 cm proximal to the site of insertion of the tendon.The etiology of Achilles tendonitis is overuse.Achilles tendonitis is a chronic problem; it occurs primarily from overuse. Healthguide for sportsThe etiology of Achilles tendonitis is overuse. Essential sports medicineAchilles tendonitis occurs more commonly in Atheletes, joggers and hikers. 