"ABSTRACT. Introduction. Historically, biomechanics research has examined
discrete kinematics, however there is now a general appreciation that tennis
racket weight, size and sweet-spot vibration play equally important roles in the
execution of assorted movement skills in youth players. Objective. The aim of
this paper was to determine if young tennis players can accurately perform a
tennis serve with altered forms of their preferred rackets. Materials and
Methods. The participants in this study were young tennis players (N = 12),
males, with the ages between 14 and 15 years old. Results. There was a
significant difference in the scores for weighted and threaded rackets for both
the left-to-right and right-to-left serve directions. Conclusion. Our study
managed to show that a different kind of racket can affect the serving accuracy
in youth tennis players"