Lower extremity overuse injuries are common in individuals performing repetitive activities such as walking and running. Although there are many possible reasons for these injuries, one of the primary causes is thought to be abnormal foot and leg motion. The purpose of this study was to measure the motion of the foot and the leg on athletes who have recently had foot or leg overuse symptoms in order to better understand the relationship between these motions and the location of overuse symptoms. It was hypothesized that there would be a significant difference between the ratio of leg rotation to rearfoot motion when comparing subjects with overuse injuries in the foot to subjects with ovemse injuries in the leg. The study design was combination of a correlation and a case control study. Fourteen subjects with overuse injuries in the foot and 14 subjects with overuse injuries in the leg participated in the study. An electromagnetic tracking device was used to measure leg rotation and rearfoot motion during standing and during gait. Pearson product moment correlations were used to determine the relationship between the standing and gait measurements. T-tests for independent samples were used to compare the measurements of the group with foot symptoms with the group with leg symptoms. Significant differences (p<0.05) between the two groups were found for eversionearly stance and subtalar joint ratioearly stance. The correlation between subtalar joint ratiostanding and subtalar joint ratioearly stance was .08. In light of the significant findings, prospective studies are needed to determine the influence of foot biomechanics relative to other factors that may cause lower extremity overuse injuries. This study did not show a significant relationship between the subtalar joint ratiostanding and the subtalar joint ratioearly stance. Further study is needed in order to determine a measurement that could be used in a clinical setting that would adequately reflect the motion that occurs during the early phase of stance.