摘要：Change in anatomical structure of foot, reduces the foot ability for normal performance. This study aims to compare selected muscles of lower extremities during walking for individuals on supinated, pronated and normal foot. 45 female students were selected through foot posture index and X-ray under the specialist physician in three foot structural groups consisting of normal, pronated and supinated foot. Electromyography activities were recorded from muscles of tibialis anterior, peroneus longus, medial gastrocnemius, and biceps femoris in three groups while walking in determined path with self-selected walking speed. Each effort simultaneous with electromyography registration was recorded with camera. One- Way ANOVA test was used to compare the groups at significance level of 0.05. The activity of muscle of tibialis anterior, medial gastrocnemius was greater in pronated foot group than that in supinated and normal groups. The muscle activity of peroneus longus was greater in supinated foot group than that of two other groups while there was seen no significant difference between muscle activity of biceps femoris. Regarding the findings of this research, the muscular performance change in pronated and supinated foot group is more noticeable than that in normal foot group.
关键词：muscle activity; walking; normal foot; pronated foot; supinated foot
