The relationship of some of the bio-kinematic variables of the readiness pause for the situation facing the serve and accuracy of Middle Euphrates tennis players

Abstract

This study aimed to investigate the relationship between kinematic variables of the ready stance in the facing position and serve accuracy among tennis players in the Middle Euphrates region, with implications for skill development and training optimization. A descriptive correlational design was employed, including seven advanced-level players, each performing three trials analyzed using Kinovea motion analysis software.

The study examined joint angles of the knees, hip, shoulder, and elbow, center of mass height and displacement, and ball contact height. Serve accuracy was measured through a target-based precision test on the court.

Findings revealed significant positive correlations between knee and right elbow angles and serve accuracy, and a significant negative correlation between ball contact height and accuracy, while other preparatory variables, such as hip angle and trunk inclination, did not significantly affect precision.

These results underscore the critical role of kinematic variables in optimizing movement sequences and maintaining mechanical balance during serve execution. Incorporating biomechanical analysis into training programs can enhance technical proficiency, correct movement errors, and maximize serve effectiveness and tactical advantage.