An Exploratory Analysis of Countermovement Jump Variables Between Higher and Lower Performers on the LESS and Y-Balance Tests

The authors aimed to explore the relationship between countermovement jump (CMJ) metrics and performance on the Y-Balance Test (YBT) and Landing Error Scoring System (LESS) in collegiate athletes. Their findings indicate that certain CMJ variables, such as landing stiffness and reactive strength index, differ significantly between high- and low-performing athletes on these movement assessments, suggesting that CMJ testing could serve as a practical complement to traditional evaluations of movement quality.