تأثير تمرينات خاصة في تطوير منحنى (المسافة-الزمن) ومؤشر دقة الارسال المستقيم بالتنس للاعبين تحت 16 سنة

The Effect of Special Exercises In the Development of the (Distance-Time) Curve and Tennis Straight Serve Accuracy Index For Players U 16 Years

Abstract

The effect of special exercises in the development of the (distance-time) curve and tennis straight serve accuracy index for players U 16 years

Researcher Supervisors
Maytham Hadi Mahdi Prof. Dr. Habib Ali Tahir
Prof. Dr. Nadia Shaker Jawad

2024

The aim of the research was to prepare special exercises in the development of the (distance-time) curve and tennis straight serve accuracy index for players U 16 years, and to identify the effect of special exercises in the development of the (distance-time) curve and tennis straight serve accuracy index for players U 16 years, and to identify the differences between the experimental and control groups in the development of the (distance-time) curve and tennis straight serve accuracy index for players U 16 years. The steps of the research procedures included determining the variables (kinematics of the performance of the straight serve in tennis) and implementing video imaging and extracting the kinematic variables and special pre-tests for the research sample of time, racket head speed, wrist speed, elbow speed, shoulder speed, rotational radius, take-off speed, performance accuracy index, and kinetic path curves for distances and preparing a special training program that includes special exercises. After conducting the straight serve accuracy test in tennis and analyzing the kinematic variables of the players’ performance and identifying the strengths and weaknesses in the performance, the researcher counted special exercises using various resistances that are related to improving the strength of the working muscles and the resulting improvement in the speed and ability of performance and the use of rubber ropes, added weights, dumbbells, rackets of different weights, and medical balls, and determined their intensity after conducting the tests specified for them as the maximum intensity to build training vocabulary in which the researcher uses the
gradual system of ascending the training load to create the effect and adaptation of the working muscles. The training method followed in implementing the exercises was the repetitive training method. It also included performing special exercises according to the specific motor paths of the skill. After completing the training, the researcher conducted post-tests after completing the exercises for the purpose of making comparisons between the results of the research sample members. The researcher used a set of statistical methods (SPSS) to extract the results that were presented, analyzed and discussed. The most important conclusion of the researcher for the special exercises is a positive effect in the development of the (distance-time) curve and tennis straight serve accuracy index for players U 16 years.