To establish association between age, sex, BMI and flat foot.

Background & Method: The aim of the study is to establish association between age, sex BMI and flat foot. The parents or the caregivers of the subjects under study were explained the purpose of study and written consent was obtained from the parents or the caregivers. A plastic platform with a plane paper which is immobilized with the help of clips is kept on smooth surface. The child is seated in front of the platform and the foot to be studied is equally impregnated with stamp ink with the help of roller and requested child to put this foot on to the platform but opposite foot out of platform now child is asked to stand up and perform a small flexion of the ipsilateral knee and then go back to initial position removing the foot from the platform. Result: Observation shows that correlation between BMI and plantar arch index PI is significant for both the sides with correlation value 0.31 for right side and 0.49 for left side and p<0.05 for both the side. Conclusion: Foot print of both the foot of every subjects were taken by using Staheli's plantar arch index method and PI values were calculated. The study concluded that incidence of flat foot deformity is higher in the boy than girls and incidence of flat foot decreases with increase in age. From the present study it is also concluded that higher PI are expected in lower age group. [ABSTRACT FROM AUTHOR]