Biomechanical Analysis of Freestyle Stroke Efficiency among Elite and Amateur Swimmers

Abstract

This study explores the biomechanical disparities in freestyle stroke efficiency between elite and amateur swimmers, focusing on critical parameters such as stroke length, stroke rate, propulsion force, and drag resistance. Utilizing high-speed video analysis and advanced motion tracking technologies, the research quantitatively examines underwater body positioning, limb movement coordination, and hydrodynamic resistance. The results indicate notable differences in stroke economy, with elite swimmers exhibiting longer stroke lengths, more effective propulsion phases, and significantly reduced frontal drag due to streamlined body alignment. These findings underscore the pivotal role of biomechanical evaluation in refining coaching methodologies and designing individualized training interventions to enhance performance across swimmer proficiency levels.