Effect of Flexible Pes Planus on Postural Stability in adolescent Females

Aim: to evaluate response of postural control and balance in adolescent females with flexible pes planus during luteal phase of menstruation. Study design: A case control study. Place and Duration of study: Biomechanics lab, Faculty of physical education- Kafrelsheikh University, Egypt, between June 2014 to July 2014. Methodology: A total of 30 adolescent females, were selected randomly, divided into 2 equal groups. Group (A): 15 Participants with normal arch foot, group (B): 15 Participants with flexible pes planus. Their age was ranged from 15 to 18 years. Their body mass index between 18-25 kg/m2. The dynamic balance parameters (Anterior posterior, Mediolateral and Overall stability indices) measured by Biodex Balance System at stability level -8 and 6. Results: Comparing between the mean values of participants stability indices (OA, AP and ML) at stability level-8 and 6 within the same group (A or B), there was no statistical signicant difference (Pgreater than 0.05), But there was statistical signicant difference between both groups (A& B) (Pless than 0.05). Conclusion: It could be concluded that there is decrease in balance parameters including (OA, AP and ML indices) at eight and six levels of stability during the dynamic balance test in flexible pes planus group compared with normal subjects.