The Effects of Movement Planning on Ground Reaction Force During a Single-Leg Landing

Jaelynn Barrera

Document Type

Conference Proceeding

Publication Date

2024

Abstract

Jump landings represent one of the most common mechanisms of musculoskeletal injury in sports. Due to movement-related decision-making and landing stability under time constraints in sports, it is important to examine biomechanical costs in unplanned landings. In this study, we examined ground reaction force characteristics in single-legged jump landings. Participants were required to perform repetitive countermovement jumps under two different anticipation conditions (i.e., planned and unplanned). The indication of the requested landing leg was delivered by visual cues on the screen (i.e., left or right footprint) either before and after take-off in planned and unplanned condition, respectively. GRF was measured by force plate and vertical peak GRF and center of pressure path length were compared between the conditions. The findings from the study can help to clarify the association between cognitive function and unplanned landing stability, and its significance on the injury and performance in landing. Data collection is ongoing.

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