The effect of training curricula of different sizes on physiological and physical variables and the accuracy of performance of the skill of crushing hitting for juniors in volleyball

Abstract

The skill of smash hit is one of the basic offensive skills and it has an important role on the outcome of matches and affects the team’s superiority to get a direct point and then reach victory, as the emphasis on speed of performance and vertical jumping as physical requirements as well as the diversity of forms of offensive plans, are all factors that international teams try to reach To it by using modern training methods and developing auxiliary devices to deliver the player to the optimal and desired performance, by informing the researcher of references, scientific sources and specialists in the field of volleyball and the researcher’s modest experience as a player. Through this, he noticed that most coaches focus on conducting one training unit per day For juniors during the training curricula with the aim of developing the physical and skill aspects, which are almost equal in size and with one training rhythm during one training unit, and from here the problem arose in how to develop the physical and skill aspects during two training units per day and trying to know the effect of this method on a section of physical and skill variables and functional, which is an attempt to explain to know the changes that occur when applying this method, and the aim is to The research aims to identify the effect of training curricula of different sizes on physiological and physical variables and skill performance. The researcher used the experimental method. The researcher used the experimental method (the two equivalent groups) as it is the most appropriate curriculum to solve the research problem. The research community included the players of the Specialized School for Talent Care in Diyala Governorate who They are aged (16-18) years with (28) players - (20) players were selected from them representing the research sample with a percentage of (71.42%) they were selected by lottery after excluding the free player (libero), and the sample was divided into two groups (experimental and control). The number of each group contains (10) players.