This research aims to determine the effectiveness of compound exercises in developing explosive power and force speed in the long jump among students. The research problem lies in the limited use of compound exercises that develop explosive power and force speed during training. The researcher used an experimental design with two groups (experimental and control). The sample included 24 students from Najaf Preparatory School for Mathematical Sciences, who were randomly divided into two groups (experimental and control). Each group consisted of 12 students, representing 49% of the research population. The experimental group underwent compound exercises, which were conducted over eight training sessions. Explosive power and force speed were measured in the research sample, and the researcher drew several conclusions, the most important of which are: The results of post-tests for both the experimental and control groups showed that the statistical significance values (Sig) in the standing broad jump test were (0.001), in the force speed test (0.003), and in the long jump test (0.000). Therefore, all values were less than 0.05, indicating statistically significant differences favoring the experimental group in subsequent tests. Furthermore, the statistical significance values in all tests (explosive power, speed and strength, and long jump) confirm the research hypotheses and their statistical validity. The statistical results (Sig < 0.05) indicate that the combined exercises were more effective than traditional exercises in developing the physical variables under study.
Amjad H. Mohammed (Wed,) studied this question.