The aim of this paper is to study the relation between muscles electrical activity and knee movement during walking for patient with patellafemoral pain by measurement both of electromyography (EMG) and changing of knee angle by electro-goniometer. T
he 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 21 patient. Final results also showed that hamstring group activity and galf group activity decreases during stance phase because knee cancel it first flexion with increase in quadriceps femoris activity to keep extension of knee.
In swing phase, it is noted that the decrease in knee flexion and it depends on the increase in quadriceps femoris activity in all the period of swing phase, but hamstring group activity increases to keep hip instability, that is, it responds to increase activity of
quadriceps femoris with less knee flexion. The activity of subject muscles in the period of gait cycle is less than normal muscles.
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.
