Symmetry Comparison Balance performance and plantar pressure Distribution in Active adolescent’s female with Ankle Pronation while standing and Stance phase of Gait

 The ankle and the leg have the capability to perform specific functions such as carrying the weight of the body in the standing position against the power of gravity, moving the body to the front and creating stability for keeping the balance and controlling the posture. The purpose of the present study is Symmetry Comparison Balance performance and plantar pressure Distribution in Active adolescent’s female with Ankle Pronation while standing and Stance phase of Gait. 

 This study was semi - experimental with 34 active adolescent girls between 14 and 17 of Tehran were selected as simple and available. In order to evaluate the navicular drop measurement by Bordy method, evaluation of plantar pressure distribution by Foot Pressure device (PT-Scan4452F100) and to evaluate the symmetry between the two limbs and balance function were used the symmetry Index and Balance performance   formula. Mean and Deviation was used to describe data, Shapiro-Wilk Test applied to verify the normality od the data, and independent t-test was compare the variable of the two groups at significance level of  p≥0/05. 

The results Symmetry Comparison Balance performance and plantar pressure Distribution showed that, there was significant difference in Symmetry meteteas 1 (P≥ 0.03) and Symmetry medial hell foot (P= 0.04) and presser of hell foot percent Symmetry (P= 0.04), Symmetry hell foot impulse (P= 0.04) and rotation hell foot balance (P= 0.04) in two groups Active adolescent’s female with Ankle Pronation. 

 The current study’s findings showed that the girls with the pronation anomaly had less asymmetry on the inside of the heel and increased pressure distribution on the 1st. tarsus and the symmetry of balance function of heel rotation around the ankle’s axis and the impulse of the back of the foot in the healthy group were more than in the pronation group. Furthermore, because of more contact of the inner surface of the soles with the ground in the adolescent girls with pronation, the pressure level on the inner edge and 1st. metatarsus is increased and the inner heel symmetry in the pronation group decreased compared to the healthy group.