Balance is one of the most important skills for performing a large number of elements in gymnastics, and it plays an especially important role in learning the basic elements for younger ages and beginners. The aim of this research was to determine whether the lowered foot affects the balance of elementary school children who train in gymnastics. The subjects were first measured for basic anthropological measurements, body mass and body height. The dominant leg is defined as the leg on which the subject prefers to perform the gymnastic balance. The degree of foot drop was determined using an electronic device for recording footprints, the plantogram. Based on the plantogram, Clark's angle was determined, which gives insight into the degree of foot drop. The balance tests used in the research are the Y test of dynamic balance and a movable platform in the anterior-posterior plane. A strong correlation between the degree of flat feet and the results in the Y balance test on the dominant leg has been established. Additionally, a moderate level of correlation between the degree of flat feet and the results in the variables EA on the non-dominant leg and AP-L on the non-dominant leg has been identified. In conclusion, there is a certain degree of association between the degree of flat feet in young gymnasts, but it manifests differently in the dominant and non-dominant legs.