OBJECTIVES: This study sought to determine if there were significant trends in lower extremity movement quality, as assessed by the Landing Error Scoring System (LESS) scores and plane-specific LESS subscales, across in 12 recent cohorts of incoming USMA cadets. DESIGN: prospective cohort study. SETTING: United States Military Academy. PARTICIPANTS: 7,591. MAIN OUTCOME MEASURES: Landing Error Scoring System (LESS) scores, adjusted for sex and ACL injury history. RESULTS: Statistically significant inverse trends were found between total LESS score and year (p < 0.01) and sagittal plane subscale and year (p < 0.01). A statistically significant direct trend was found for the frontal/transverse plane subscale and year (p < 0.01). However, each of these trends had a small associated effect size, and none were considered clinically meaningful. CONCLUSIONS: There were no meaningful changes in lower extremity movement quality in incoming US Military Academy cadets between 2005 and 2017.