| Abstract | 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 participant’s stability indices (OA,AP and ML) at stability level-8 and 6 within the same group (A or B),there was no statistical significant difference (P> 0.05),But there was statistical significant difference between both groups(A&B)(P< 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. |