The effect of special training exercises for the five stress areas on some biochemical variables of volleyball players aged (19-21 years)

Abstract

The most important things that accompany the athlete are the prevailing energy system in the game and the participation of the rest of the systems according to their percentage. The five intensity zones are among the most important training zones that are built on the basis of five intensity zones so that the largest possible area of ​​energy for the game can be covered and developed and a greater focus on the prevailing energy system. The type of activity also determines the form, quantity and period of energy needed in terms of intensity and time. Therefore, each system can be divided into periods that differ according to these data, as they can be determined in light of the nature of muscle work. Volleyball is one of the games that operate on two energy systems (phosphagene - lactic), and this is an indication that during matches, especially those that last for more than 3 sets that end with a result of (3-1) or (3-2), there will be an accumulation of lactic acid in larger quantities compared to matches that end with a result of (3-0). The study aimed to identify the effect of a training method for the five intensity zones on the most important biochemical variables among volleyball players aged (19-21 years). The researcher used the experimental method to suit the nature of the research problem. The researcher worked to identify the community, which is represented by the players of Basra Volleyball Club aged (19-21 years) participating in the Youth League for the 2023-2024 sports season. Their total number was (16 players). Through the homogeneity procedures, two players were excluded. After that, two players were also excluded for not adhering to the procedures followed for the research so as not to affect the results. Thus, in the final result, we have (12 players) representing the main research sample and constituting (75%) of the community.

Through the results and data presented and discussed, the researcher was able to reach the following conclusions: Training according to the five stress zones contributed to developing the efficiency of vital organizations.