Relation Between Calf Muscles Activity And Knee Angle Changing For Patient With Anterior Cruciate Ligaments Injured (Acl)

the aim of this papers is to study the relation between calf muscles electrical activity and knee movement during walking for patient with anterior cruciate ligaments injured (acl) by measurement both of electromyography (emg) and changing of knee angle by electro-goniometer. the start and end of the gait cycle were determined by foot sensors, a program was designed for signal processing of the data, testes were carried out at hamish hospital in damascus. subjects were divided into two groups: 46 normal subjects and 10 patient. final results showed that the knee cancels its first flexion, there are activity of calf muscles, .through push period there is no activity of calf, it is offen depend on hamstring muscles activity early to keep stability of knee. . in swing phase it noted that decrease in knee flexion.