 If the test is positive, there is no movement of the foot (normally plantarflexion) on squeezing the corresponding calf, signifying likely rupture of the Achilles tendon.Recent research has indicated that while the Simmonds' test is an accurate detector of achilles rupture, it is unable to distinguish between partial tear (tear of the gastrocnemius or soleal portion only) and a complete tear of both portions.The test is named after Franklin Adin Simmonds (1911-1983), an English orthopaedic surgeon at the Rowley Bristow Hospital, Surrey.