Summary The objective of the study is to design a specialized training program in modern weighting methods for under-21 soccer players to develop muscular strength and to identify the effect of the training program on weighting exercises on some physiological variables (some aerobic and anaerobic abilities such as VO2max heartbeat and backstage). Researchers in this study that weight training for soccer players will have a clear impact on both the development of muscle capacity and improve some functional abilities. The experimental method was used to design two samples, a experimental sample and a control sample of under-21 soccer players who were selected by a team of Mustaganem teams. Each sample consisted of 18 players. The experimental sample was applied to the weight and control program. For four months. The study showed that the experimental sample achieved a significant increase in muscle strength measurements as well as some physiological variables in all measured tests compared to the control sample. This is the result of the proposed training program applied to the experimental sample.

SummaryThe aims of this study were (a): to compare maximal physiological responses (maximal heart rate: HRmax and blood lactate concentration: [La-]) and maximal aerobic speed (MAS) achieved during a gold standard test (T-VAM) to those during a new test entitled: the 150-50 Intermittent Test (150-50IT), and (b): to test the reliability of the 150-50IT. Eighteen middle-distance runners performed, in a random order, the T-VAM and the 150-50IT. Moreover, the runners performed a second 150-50IT (retest). The results of this study showed that the MAS obtained during 150-50IT were significantly higher than the MAS during the T-VAM (19.1 ± 0.9 vs. 17.9 ± 0.9 km.h−1, p < 0.001). There was also significant higher values in HRmax (193 ± 4 vs. 191 ± 2 bpm, p = 0.011), [La-] (11.4 ± 0.4 vs. 11.0 ± 0.5 mmol.L−1, p = 0.039) during the 150-50IT. Nevertheless, significant correlations were noted for MAS (r = 0.71, p = 0.001) and HRmax (r = 0.63, p = 0.007). MAS obtained during the first 150-50IT and the retest were not significantly different (p = 0.76) and were significantly correlated (r = 0.94, p < 0.001, intraclass correlation coefficient = 0.93 and coefficient of variation = 6.8 %). In conclusion, the 150-50IT is highly reproducible, but the maximal physiological responses derived from both tests cannot be interchangeable in the design of training programs.

SummaryThe research aim was to identify the effect of using some plyometric exercises to improve muscular power (vertical jump) and digital achievement in high jump activity among third year’s students. The researchers used an experimental method in conformity with research nature between pre-tests and post-tests for the sample research. The sample was formed by students belonging to the physical education and sports institute, University of Mostaganem (Algeria) of the academic year 2018/2019. 40 students were chosen and divided into two groups (experimental 21 students, control 19 students). The vertical jump test of stability and digital achievement test were used. After the treatment of the results by statistical means and through these results, it has been reached several conclusions from them. Plyometric exercises are important to develop vertical jump and digital achievement level in high jump [discussion significant difference (p≤0.05)] among students, and the best improvement of the experimental group based on plyometric exercises is marked comparing to the control group.

The curriculum of physical education and sports through sports activities programmed in the secondary stage seeks to achieve a set of goals of mobility, cognitive and socio-emotional to serve the goals of physical education and sports at this stage. We find a basketball game one of these activities which need a degree of intelligence and knowledge that helps in developing the skill level of the students and selecting the teacher for the appropriate exercises to teach different basic skills. In this context, our study aims to measure the cognitive level of the students of the third secondary level, as well as their level in some basic skills. The study was conducted using a cognitive test in basketball and the selection of some technical tests according to the objectives of the curriculum, then comparing the level according to the sex variables and the level of intelligence and interaction between them and identifying the relationship between these variables. One of the students of the third year secondary school in the city of Mostaganem (Algeria), and after the statistical treatment of the results was reached the results of the most important: 1. The absence of a gender effect and the level of logical and physical intelligence and interaction between them at the cognitive level while being influenced by the level of space intelligence in favor of those with high intelligence. 2. There is a difference in the level of skill of pointing, scrolling and dialogue for the benefit of males, and there is no impact on the level of intelligence, whether logical or physical or space. 3. There is an impact of the interaction between sex and the level of spatial intelligence at the cognitive level, where males and females with high intelligence showed more response. 4. The interaction of sex and the level of intelligence, whether logical, physical or spatial, has no impact on the skills of correction, scrolling and dialogue. 5. There is a direct correlation between IQ and cognitive level as well as basic skills in basketball.

SummaryThis study aimed to analysis the educational process in teaching physical and collective sports activities for secondary education in light of the competencies approach, where we used the descriptive analytical approach. The study was conducted on a sample of 206 teachers of physical and sports education working in some high schools in the Algerian region using a questionnaire network. We have come to say that the educational process in teaching collective physical and sports activities is based on educational goals and procedures and evaluation; and through this, the material of physical and sports education becomes a leading role as a result of developing the performance of teachers, and therefore this offering can be considered as a way to reform educational systems through the reform of educational materials