“The effect of the training curriculum using different playing styles on sandy surfaces on some physiological and biochemical variables among young football players”.

Abstract

The study aimed to investigate the effect of a proposed training curriculum based on different playing styles on certain physiological, biochemical, and physical characteristics of junior football players. The study hypothesized that there would be statistically significant differences between the pre- and post-test results regarding the effect of the proposed training curriculum using the sand playing style in improving some of these variables in junior football players. The researchers employed an experimental method suited to the nature of the study, using a single-group experimental design with pre- and post-tests. The research sample was randomly selected from the junior category players (ages 14-16) of Rzgari Sports Club, consisting of 12 players. (3) goalkeepers and (3) injured players were excluded from the post-tests, along with (5) players who underwent exploratory experiments, leaving a final sample of 12 players, which represented 52.17% of the total sample using the single-group method. The data were analyzed using the statistical program SPSS, where percentages, arithmetic mean, standard deviation, Pearson's simple correlation coefficient, paired t-tests, and reliability coefficients were computed. The study results indicated statistically significant differences between the pre- and post-tests, favoring the post-test, in the effectiveness of the enzymes (CP) and (LDH) in the study sample. Based on these findings, the researchers recommend conducting further physiological and biochemical tests and using physiological and biochemical indicators to standardize sports training loads across different age groups.