en بيومکانيک ورزشی و شاخه‌های وابسته بدان Sport Biomechanics and its related branches مقاله اصیل Original Article <div style="text-align: justify;"><strong>Background.</strong> It is challenging to master the overhead serve in volleyball because of the several ways of positioning the body correctly when hitting the ball and the toss. This skill is incredibly challenging for novices who experience problems positioning different body parts.<br> <strong>Objectives. </strong>This work aims to apply mechanical feedback to analyze the mistakes likely to occur in overhead volleyball serves and compare it with the usual verbal and visual feedback.<br> <strong>Methods.</strong> This study involved 45 male students from the University of Anbar&#39;s College of Physical Education, randomly divided into two groups: one with 25 participants receiving verbal and occasional visual feedback and another with 20 receiving both visual and mechanical feedback. The research measured the kinematic coherence of limb movements and the direction of the serving arm.<br> <strong>Results.</strong> The experimental group demonstrated significantly higher gains in kinematic coherence and serving arm accuracy than the control group. Particular improvements were supported by specific p-values (e.g., p<0.001 for kinematic coherence, p=0.002 for serving arm accuracy), demonstrating the higher efficiency of mechanical feedback.<br> <strong>Conclusion.</strong> Mechanical feedback improves learning and performance in volleyball overhead serves by enhancing the specificity and timing of feedback regarding player positioning and movement.</div> Mechanical Feedback, Verbal Feedback, Visual Feedback, Overhead Serve, Volleyball 0 0 http://aassjournal.com/browse.php?a_code=A-11-2327-2&slc_lang=en&sid=1 Manaf Majid Hassan munaf.m.hasan@uoanbar.edu.iq 100319475328460014936 100319475328460014936 No Faculty of Physical Education and Sports Sciences, University of Anbar, Ramadi, Iraq Hameed Hammad Khalaf hameed.h.khalaf@uoanbar.edu.iq 100319475328460014937 100319475328460014937 Yes Faculty of Physical Education and Sports Sciences, University of Anbar, Ramadi, Iraq Omar Ahmed Mosleh omar.a.mosleh@uoanbar.edu.iq 100319475328460014938 100319475328460014938 No Faculty of Physical Education and Sports Sciences, University of Anbar, Ramadi, Iraq Waleed Khalid Hammadi pe.waleed_khaled@uoanbar.edu.iq 100319475328460014939 100319475328460014939 No Faculty of Physical Education and Sports Sciences, University of Anbar, Ramadi, Iraq Shakir Mahmood Abdullah alshakir_1972@uoanbar.edu.iq 100319475328460014940 100319475328460014940 No Faculty of Physical Education and Sports Sciences, University of Anbar, Ramadi, Iraq