The study was applied to compare between FPA in diplegic cerebral palsied (study group) and normal children (control group) within three age groups (five to six, six to seven and seven to eight years), to assess the difference of the foot progression angle among the three age groups of diplegic cerebral palsied children and to investigate the correlation between FPA of right and left lower extremity and balance in diplegic cerebral palsied children. Children were selected from the outpatient clinic of faculty of physical therapy, Cairo University and divided into three equal age groups. Foot...