Sport culture

The importance of the research came through research and investigation to identify the importance of special exercises for balance with auxiliary tools in developing the element of compatibility and the skill of defending the stadium among volleyball players. Statistically significant between the tribal and remote tests for some motor abilities and technical skills, and the post tests, and the researcher used the experimental method by designing one experimental group that fits with the nature of the problem to be investigated. Volleyball teams, and the research sample was deliberately tested by Dhuluiya Sports Club players for volleyball applicants for the sports season ( 2021-2020) participating in the Governorate League, due to the proximity of the Dhuluiya Club site to a residential place and most of the Dhuluiya Club players have a good relationship with them and because I was One of the Dhuluiya club players was tested as a sample, which numbered (14) elements, and players were excluded for not adhering to the exercises that The researcher applied it, and here the research sample has (12) players, representing a percentage of (10,526) of the research community. Special trainings were prepared in two medium courses of (8) small courses, and that each small course contains (3) training units, bringing the number of educational units to (24) training units. The researcher sought the most important conclusions and recommendations, which are that the exercises by means of balance contributed significantly to improving the compatibility between the eyes and the hand of the volleyball players, and the exercises by means of balance had a clear and tangible role in improving the level of performance and skill of defending the stadium, and the researcher stresses the need to choose appropriate balance tools For volleyball players and the nature of the skills targeted for improvement in line with their specificities, as well as relying on the results of the current study when training basic volleyball skills for club players and Adopting the principle of diversifying exercises and exchanging the work of muscle groups when preparing exercises with balancing tools for volleyball players

The research aims to:
-Identifying the values of some mechanical variables related to the butting stage for the accuracy of headshot scoring from jumping and to the right side.
-Recognizing the relationship between the values of some mechanical variables related to the butting stage for the accuracy of scoring in the head and on the right side of the soccer ball.
-Recognizing the differences in the values of some mechanical variables related to the hitting stage for the speed and accuracy of header scoring from jumping and for the right side of soccer.
The researchers used the descriptive approach for its suitability to the nature of the research. The research community identified the Salah El-Din Governorate club players who participated in the first division football league for the season (2020-2021), and their number is (30) players representing four clubs (Salah El-Din, Al-Alam, Al-Dujail and Al-Sharqat). The number of the sample members was (30) players, all of whom were chosen, and they constitute a percentage of (100%) of the original community. 26) players representing a percentage of (86.6%), which is sufficient for the research requirements. The researchers used statistical means, including (arithmetic mean, standard deviation, T-test for interconnected samples, skew coefficient, and the computer was used for the purpose of statistical data processing using the (SPSS.25) program). , and Pearson's correlation coefficient).

Through the researcher's follow-up to methods of teaching the performance of swimming crawling effectiveness, the researcher found that most of the uneducated (6-9) years old who want to learn face great difficulties in learning skills according to their sequence such as buoyancy, flow, and movements of the arms and legs, especially in its beginning because the pools Swimming is a strange environment for them because there is a state of fear in learning to swim and leads to a rapid loss of awareness and sense of movement and the environment, since the lack of observance of the basic principles of motor learning, including the sense of movement and the accompanying perception and sense of movement, which is gradually formed through practical practice and repetition of work for the muscles involved in performance, so the researcher, through his observations of those observations, considered the use of educational exercises to learn to perform the effectiveness of swimming crawling by implementing sensory-motor exercises that have an important role in the learning process of crawling swimming, in addition to the educational method used for this purpose. The aim of the research is to:
1. Preparing exercises according to the sensorimotor abilities using an educational aid to learn to perform the crawling swimming activity for uneducated people aged (6-9) years.
2.The sensorimotor abilities exercises have an effect on learning to perform the free swimming activity for uneducated people aged (6-9) years.
The researcher used the experimental method for its suitability to the nature of solving the problem. The most important conclusions were:
1.The exercises according to the kinesthetic abilities had an effective and positive role in enabling the experimental group to learn the basic skills in.

This study aims at :
_The differences in the compound skillful performance for the first experimental group players which used ( S.A.Q) training with individual style between the both the pre and posttest .
_The differences in of the compound skillful performance for the second experimental group players which used ( S.A.Q) training with compound style between the both the pre and posttest .
_The differences in the compound skillful performance for the third experimental group players which used ( S.A.Q) training with mixed style between both the pre and posttest .
_The differences in the compound among the three groups for the posttest .
The researcher has applied the experimental method for its convenience with the nature of the problem of the research .
The researcher has concluded the following :
-S.A.Q training with individual style which perform the first experimental group achieved a positive development in the Compound Skillful Performance except ( the first test ) .
-S.A.Q training with compound style which perform the second experimental group achieved a positive development in Compound Skillful Performance .
-S.A.Q training with mixed style which perform the third experimental group achieved a positive development in Compound Skillful Performance .
-S.A.Q training with compound style has proven to the Compound Skillful Performance
The researcher has recommended the following :
-Confirming the soccer coaches to use S.A.Q training with deferent styles in training young soccer players because its effective ness in developing the Compound Skillful Performance.
-execution a studies by using S.A.Q training with deferent styles on another organized games .

The Aim of the Research is to:
 Building Technical tests of visual interactive agility for advanced football players
 Setting standards and levels for Technical tests of the interactive visual agility of advanced football players.
The Researcher Used the descriptive approach in the (survey) method for its suitability to the nature of the study, and the research community identified the advanced players in the first-class clubs in Kirkuk governorate, with a total of (151) players, in order to obtain the results that serve the study, the researcher used a number of data collection methods, namely: The two systems (zs, spss and (Exclle) were used to reach the results based on the following statistical methods: (arithmetic mean, standard deviation, skew coefficient, correlation coefficient), The simple (Pearson), to find the reliability and objectivity of the tests, the t-test for independent samples to find the validity of the discrimination of the tests, standard score (6 sigma

- Develop a scale of sport courage scale in artistic gymnastics for students of the second and third grades at the College of Physical Education and Sports Sciences at the University of Mosul;
- Asses the level of sport courage scale in artistic gymnastics and the skill performance of students of the second and third years at the College of Physical Education and Sports Sciences at the University of Mosul;
- Set Standard levels for the sample research on the measure of sport courage scale in artistic gymnastics for students of the second and third years at the College of Physical Education and Sports Sciences at the University of Mosul.
Identify the relationship between the degree of sport courage scale in artistic gymnastics and the degree of skill performance in some technical gymnastics for students of the second and third years of school at the College of Physical Education and Sports Sciences at the University of Mosul for the academic year (2019 - 2020), of which there are (460) students, the core research sample consisted of (375) Students selected randomly from the research community and divided into the construction sample 225 students, 150 application sample, search tool (Gymnastic skill tests), scale (sport courage scale with gymnastics) The research required the construction of this scale for classroom students. (II and III) at the College of Physical Education and Sports Sciences, University of Mosul, which included developing steps (identification of the phenomenon or feature to be measured, preparation of the scale areas, preparation and formulation of the paragraphs of the scale areas, logical analysis of the paragraphs and preparation of the scale instructions.

The research aims to:
‒ Preparing skill exercises to develop some compatibility abilities for football players aged (16-17) years.
‒ Revealing the effect of skill exercises in developing some harmonic abilities of football players aged (16-17) years for the pre and post tests.
‒ Revealing the significance of the differences in the results of the post-test for the control and experimental groups in the development of some harmonic abilities of football players Ages (16-17) years.The researchers used the experimental method for its relevance to the nature of the research. The research community was determined by the players of clubs in Salah al-Din Governorate, aged (16-17 years). The players of Al-Alam Sports Club in football aged (16-17 years) were chosen as a random sample to search by lottery, and their number is (28) players. The players were divided into two experimental and control groups, each numbered (12) players, and (4) players, two Of them, the exploratory experiment was applied to them and two of them were goalkeepers, and the researchers used statistical methods, including (arithmetic mean, standard deviation, t-test, chi-square, simple correlation coefficient (Pearson), percentage, Spearman's equation).

The problem of the study lies in an attempt by the researchers to answer the following question: Does special exercise affect the acceleration of the healing process in the rehabilitation of the sprained ankle and their return to sports activity as quickly as possible? The study aimed to identify the effect of special exercise in rehabilitating the ankle joint sprain for players in some sporting events. And it was assumed that there were statistically significant differences between the results of the (pre- and post-test) tests, and in favor of the post-test for the players of some sporting events. The two researchers used the experimental design with the test (pre and post), and the research community consists of players from teams (soccer, basketball, and athletics) in Baghdad governorate with sprained ankle joint and the rehabilitation program continues for a period of six weeks and the number of qualifying units was (18) units that were applied. During (3) days a week, and the sample included (5) players representing the research community, as for the statistical means, it was (Mean), (Std.Devition), and (T-test) for the related samples. They concluded the effectiveness of the special exercise used in the rehabilitation of the ankle joint injury of medium degree for all the tests developed for the research sample, and recommended the necessity of diversifying the special exercise in terms of tools and equipment and increasing the rates of exercises performed with balance tools and preferably using modern devices.

The problem of the study lies in the answer to the following question, does the treatment methods affect the acceleration of the healing process in the rehabilitation of the sprained ankle joint and their return to the exercise of sports as quickly as possible? And it aimed to know the effect of therapeutic methods in rehabilitating the ankle joint sprain for the players of some sports activities. It was assumed that there were statistically significant differences between the results of the tests (pre- and post-test) in favor of the post-test in rehabilitating the ankle joint sprain for players in some sporting events. The two researchers used the experimental design with the test (pre and post), and the research community consists of players from teams (soccer, basketball, and athletics) in Baghdad governorate with sprained ankle joint and the rehabilitation program continues for a period of (6) weeks and the number of qualifying units was (18) units. It was applied during (3) days per week, and the sample included (5) players representing the research community, as for the statistical methods, it was (Mean), (Std.Devition), (T-test) for the related samples, and inferred the effectiveness of the treatment methods used to rehabilitate an injury The ankle joint is of medium pain degree. The two researchers recommended the necessity of diversifying the treatment methods in rehabilitating this type of injury.

The research problem can be known through the following questions:
Do male and female teachers of physical education in Kirkuk have the skills of the twenty-first century?
- Are there differences between male and female teachers of physical education in Kirkuk governorate according to the gender variable in possessing twenty-first century skills?
The study aimed to:
1- Building a scale for the skills of the twenty-first century for male and female physical education teachers in Kirkuk governorate.
2- To identify the extent to which physical education teachers in Kirkuk governorate possess the skills of the twenty-first century.
3- Detecting the differences in the extent to which physical education teachers in Kirkuk governorate possess the skills of the twenty-first century according to the variable (gender).
The research community was determined by a comprehensive inventory method represented by physical education teachers in Kirkuk governorate, who numbered (225) teachers for the academic year (2020-2021) and the research sample consisted of (203) teachers, and the research sample was divided into two parts (construction sample, and application sample) about Through the lottery, the construction sample was limited to (103) teachers, and the application sample was limited to (100) teachers. The researcher used a number of methods in collecting data. As for statistical treatments, the statistical program (spss) was used to extract the required results that serve the study.
The research reached the following conclusions:
1- The twenty-first century skills scale was built for physical education teachers in Kirkuk governorate.

The study aimed to identify :
- Building a recitation strategy scale.
- Identifying the relationship between the recitation strategy and cognitive achievement in the subject of teaching methods for third year students in the College of Physical Education and Sports Sciences / Tikrit University.
To achieve the research objectives, the researcher assumed :
- There is a statistically significant relationship between the recitation strategy and the cognitive achievement of students of the Faculty of Physical Education and Sports Sciences, third stage, in the subject of teaching methods.
The researcher used the descriptive approach for its suitability to the nature of his research, and for this purpose, the researcher used a questionnaire designed by him after verifying the psychometric characteristics of him on the research sample consisting of (100) students from the third study stage in the College of Physical Education and Sports Sciences at the University of Tikrit.
The cognitive achievement test was conducted after the completion of the scale construction, and after data collection and unloading, they were treated statistically using the statistical program (SPSS), and the t-test for samples, the arithmetic mean, the standard deviation, and the simple correlation coefficient (Pearson.(
After statistical treatment and the appearance of the results, the researcher reached a number of conclusions, including :
- The contribution of the recitation strategy to increasing students’ cognitive achievement in Physical Education Teaching Methods
- There is a positive relationship in students' acquisition of cognitive achievement and the use of the recitation strategy.

The research aims to :
- Preparing educational units according to Willen and Phillips' strategy in learning the skill of handling football for students of the fifth literary grade.
- Detecting the effect of Wan and Phillips' strategy using skill exercises in learning the skill of handling football for fifth literary grade students.
- Detecting the differences in the results of the two post-tests of the experimental and control groups in learning the skill of handling football for students of the fifth literary grade.
The researchers adopted the experimental method in the manner of two equal experimental and control groups with two tests, pre and post tests, for its relevance to the nature of the research. The research community consisted of the fifth preparatory grade students in Omar Al-Mukhtar Preparatory School for Boys, one of the schools of the Salah Al-Din Education Directorate / Samarra Education Department for the academic year 2020/2021 and the adult Their number is (36) students, and the research sample was chosen randomly by lottery, to be a control group and an experimental group, which numbered (24) students and (12) students for each group, while (6) students were excluded because of their participation in the study. The exploratory experiment and (4) repeaters and (2) students practicing the game, and the researchers used the statistical methods, including (arithmetic mean, standard deviation, t-test, skew coefficient, mode, percentage, simple correlation coefficient “Pearson”).
The researchers concluded that the use of the strategy (Wann and Phillips) has a significant impact on learning the skill of handling football for students.
The researchers recommended conducting similar studies to the current study on other sports and at different age and school stages.

The study aims to:
- Building a scale of positive confrontation methods for the referees of the Iraqi Football League.
- Adapting the decision-making scale for the referees of the Iraqi football league.
- Identifying the significant differences between the arithmetic mean of the positive
The research sample identified first-degree referees registered with the Iraqi Central Football Association and accredited for the football season (2020-2021) from the research community, which consists of (315) referees. The research sample is chosen randomly, including (260) referee from the study population, of which (100) referees are used for building and (100) referees used for application, community with (30) referees for the pilot experiment, with(30) referees are used for building statistical means (chi-square equation, arithmetic mean, standard deviation, mode, skew equation, t-test for two independent samples, Pearson correlation coefficient, and Cronbach's alpha coefficient).

The problem of the research is that there is weakness and fluctuation in the performance of skills and the loss of the ball from the players, so the researcher decided to develop special agility exercises for football players youth
and to be of help to coaches and inexpensive that can be adopted in the training process.
The research aims to:
1- Develop special agility exercises to develop the performance of some basic skills for football players youth.
2- To reveal the significance of the differences in the results of the tribal and remote tests of the experimental group in some basic skills of football players youth years.
3- Revealing the significance of the differences in the results of the post-tests between the control and experimental groups in the performance of some basic skills for football players youth.
The researcher used the experimental method to suit the nature of the research. The researcher used the experimental design with pre and post tests for the experimental and control groups. The research community included the young football players in Kirkuk Governorate, which numbered (152) players representing (6) clubs. The researcher used the statistical bag (spss) to treat the special results obtained by the researcher using the following statistical equations: (arithmetic mean, standard deviation, skew coefficient, median, T-test for correlated and unrelated samples).
The researcher reached the following most important conclusions:
1- Special agility exercises made a remarkable development in the performance of some basic football skills for the experimental group.
2- The special agility exercises according to the high intensity and repetitive interval training had a great impact on developing the performance of some basic football skills for the experimental group.
The researcher also recommended:
1- The possibility of using special agility exercises to develop the performance of some basic skills of young football players.
2- The possibility of adopting the method of high-intensity interval training and repetition to develop the performance of some basic skills in football.

The research aims to ;
- Building a measure of strategic planning for members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq .
Building a measure of administrative creativity for members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq .
Knowing its level and the direction of the relationship between strategic planning and administrative creativity among members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq
The researchers assumed :
- There is no relationship between strategic planning and administrative creativity among members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq .
The researchers used the descriptive approach in the method of relational relations for its suitability and the nature of the research. The research community included (672) members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq, numbering (96) clubs, as it included the governorates of ( Sulaymaniyah , Erbil, Kirkuk, Dohuk) in the latest statistics for the year (2019-2020). The research sample included (576) members of the administrative bodies of clubs in the Kurdistan Region of Iraq, which are respectively the construction sample (288), the stability sample (30), the exploratory experience (30) members, (192) members of the application, and (36) who were excluded for various reasons. The researchers used statistical methods (arithmetic mean, standard deviation, mode, T-test for two independent samples, Pearson correlation coefficient, Spearman Brown coefficient ).
The researchers concluded, including:
1- Members of the administrative bodies of sports clubs in the Kurdistan region of Iraq enjoy the tribe of strategic planning, cultural intelligence and administrative creativity, with rates higher than the assumed averages.

The research aims to ;
- Building a measure of Cultural intelligence for members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq .
Building a measure of administrative creativity for members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq .
Knowing its level and the direction of the relationship between Cultural intelligence and administrative creativity among members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq
The researchers assumed :
- There is no relationship between Cultural intelligence and administrative creativity among members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq .
The researchers used the descriptive approach in the method of relational relations for its suitability and the nature of the research. The research community included (672) members of the administrative bodies of sports clubs in the Kurdistan Region of Iraq, numbering (96) clubs, as it included the governorates of (Sulaymaniyah, Erbil, Kirkuk, Dohuk) in the latest statistics for the year (2019-2020). The research sample included (576) members of the administrative bodies of clubs in the Kurdistan Region of Iraq, which are respectively the construction sample (288), the stability sample (30), the exploratory experience (30) members, (192) members of the application, and (36) who were excluded for various reasons. The researchers used statistical methods (arithmetic mean, standard deviation, mode, T-test for two independent samples, Pearson correlation coefficient, Spearman Brown coefficient) .
The researchers concluded, including :
1- Members of the administrative bodies of sports clubs in the Kurdistan region of Iraq enjoy the tribe of strategic planning, cultural intelligence and administrative creativity, with rates higher than the assumed averages

The study aims to:
Building a measure of psychological stress for students of physical education and sports sciences.
Preparing a measure of psychological security for students of physical education and sports sciences.
- Identify the relationship between psychological stress and psychological security among students of physical education and sports sciences.
And the researcher supposes that:
There is an inverse relationship between psychological stress and psychological security of students of physical education and sports sciences.
- The researcher used the descriptive approach in both survey and correlational styles, and the research community included students of physical education and sports science for the academic year (2020-2021) and by (580) students representing (4) universities, research procedures were carried out on them, and the construction sample for the two scales reached (165) Students representing (77.6%) and (10) students were excluded for their participation in the exploratory experiment, and the researcher used statistical methods, including (the arithmetic mean, standard deviation, percentage, simple correlation coefficient (Pearson), standard error, and Spearman Brown's equation)
The researcher concluded the following:
. The effectiveness of the psychological pressure meter, which the researcher built through the scientific procedures followed in the scientific research, which indicates the ability of the scale to measure the psychological pressure of students of the Faculties of Physical Education and Sports Sciences who practice racket games.. Students of the Faculties of Physical Education and Sports Sciences who practice racket games suffer from psychological pressure in general

The current study aims at: Build a measurable psychological resilience and prepare a measurable job satisfaction for teachers at the faculties of physical education and sports science at Kurdistan Region-Iraq, and Identify psychological resilience and job satisfaction more among the teaching staff at the faculties of physical education and sports science at the universities of the Kurdistan region-Iraq.
The research issue necessitated the researcher to use the descriptive method in correlational studies to suit with the nature of the research. The total of the original research community samples for the research consisted of (329) teaching staff, of whom (269) were male and (60) female teachers representing colleges and departments of physical education and sports science in the Kurdistan region-Iraq universities. The research sample were taken of (270) teachers selected randomly and by lot, at a rate of (82.07%). The samples were distributed, 120 for the fundamental sample and 100 for the application sample. 10 teachers were chosen as the first survey samples, and 10 teachers were chosen as a second survey samples. And 30 resolution samples were chosen randomly by lot. After analyzing and displaying the results, the researcher came out of several conclusions, including:
1. The effectiveness of the psychological resilience scale, which the researcher structured by following the scientific procedures, which indicated the ability of the scale in measuring the psychological resilience of the teaching staff in the faculties and departments of physical education and sports science in the universities of Kurdistan region-Iraq.
2. The effectiveness of the job satisfaction scale that the researcher has adapted by following a number of scientific procedures such as modification, deletion, and the adaption followed in the scale to suit the research sample under study.

The problem of the research was determined by the necessity of conducting this research to address cases of anxiety affecting the level of players by identifying the level of psychological anxiety among young volleyball players. The aim of the research was to identify the level of the state of competitive anxiety among young volleyball players, as well as to identify the dimensions of the state of competitive anxiety among young volleyball players. The researcher hypothesized that there are multiple different dimensions of competitive anxiety among young volleyball players.
The researcher used the descriptive approach to suit the requirements and nature of the research. The researcher used the spss statistical bag to process the data.
The researcher reached the following conclusion, as he reached the level of competitive anxiety for young volleyball players, as the third dimension (self-confidence) came in the first place. Competitive anxiety on young volleyball players and other age groups and even advanced, as well as applying the scale to players in other games in order to identify the level of cases of competitive anxiety they have and develop appropriate solutions to them.

The research community was determined by the intentional method, represented by the players of Al-Alam Sports Club in football, the youth category for the sports season (2020-2021 AD), which numbered (24) players. The exclusion of goalkeepers and a section of the players for the purpose of experimental control, to identify the effect of special exercises with the ball on some basic skills of young football players, and the research aimed to identify the significance of the differences between the results of the two dimensional tests of the experimental and control groups in some basic skills of young football players, The results were obtained, including:
The special exercises with the ball implemented by the experimental group achieved a development in the skills of handling and rolling, by comparing the results of all tribal and dimensional variables for the players of the experimental group.
- The control group did not achieve any development in the skills of physical handling and rolling, by comparing the results of all variables before and after the players of the control group.
- The experimental group that carried out special exercises with the ball achieved a better development than the control group in the skills of handling and rolling by comparing the results of the pre and post tests for the players of the control and experimental groups.
The researchers believe that it is necessary to use special exercises with the ball in youth football training by coaches because the results of the research showed a clear development of the skills of handling and rolling, and the use of the periodic training method of high intensity showed good results in this type of exercises.

The study aims to:
- Building a leadership personality scale for the managers of Salah al-Din Youth and Sports Forums.
- Identifying the relationship between the leadership personality and administrative empowerment among the managers of the Salah al-Din Youth and Sports Forums.
- Identify the relationship between the leadership personality and administrative empowerment.
- Identify the dimensions of leadership personality and administrative empowerment.
The research community consists of administrative and technical staff working in youth and sports forums in the governorate of Salah al-Din, which numbered (16) forums distributed throughout the governorate. (68,888%) of the research community The application sample consists of (70) employees representing (31.11%) of the total community in addition to (10) employees and neglected (5) forms for not answering the full scale on the scale, and the application sample
(arithmetic mean, standard deviation, t-test, chi-square, and the simple correlation coefficient (Pearson), SPSS, Percentage, Spearman's Equation.
The researcher reached the most important results, which are :
1- The effectiveness of building a leadership personality scale for youth and sports forums in Salah al-Din Governorate as one of the measures building the scale.
2- The youth and sports forums in Salah al-Din governorate achieved in the dimensions of the leadership personality a level (medium - high).
3- Youth and sports forums in Salah al-Din governorate achieved a (high) level in the dimensions of administrative empowerment

Objectives of the study:
1) Developing special preventive exercises to develop the dynamic balance of the lower limbs to prevent torn leg muscles in young soccer players
2) Learn about the effect of preventive exercises in developing the dynamic balance of the lower limbs..
The researchers used the experimental approach and in designing the two experimental and pre-test and control groups, to suit the nature and problem of the research.
The researchers determined the research sample in an intentional way, and they are youth players under the age of 19 who represent the Refineries Club participating in the League of First Class Clubs in the governorate of Baghdad, and they are (24) players. It will pay off in keeping the player healthy and strong, to be eligible to represent the first team physically, skillfully, and schematically..
Through the data and results reached by the two researchers after taking the test on the research sample that :
1- Preventive exercises have contributed to developing the dynamic balance of the right-handed man among young football players among the members of the experimental research sample.
2- Preventive exercises have contributed to the development of the dynamic balance of the left man among young soccer players among members of the experimental research sample.
3- The experimental group achieved a noticeable development at the expense of the control group in the posttest tests of the study variables.

Objectives of the study:
1) Developing special preventive exercises to develop tolerance of the relative strength of the muscles of the lower limb
2) Identify the effect of preventive exercises on developing the variables under study.
The researchers used the experimental approach and in designing the two experimental and pre-test and control groups, to suit the nature and problem of the research.
The two researchers identified the research sample in an intentional way, and they are youth players under 19 years of age, and they represent the Al-Masafi club participating in the League of First Class clubs in Baghdad governorate, whose number is (24) players, and the researcher's choice of this category came as it represents a link between the category of junior and advanced and the fact that preventive programs It will pay off in keeping the player healthy and strong, to be eligible to represent the first team physically, skillfully, and schematically.
The researchers concluded: through the data and results reached after testing the research sample, that preventive exercises have contributed to developing tolerance of the relative strength of the muscles of the lower limb among members of the experimental research sample.
The researchers recommended several things, including:
1) The necessity of using exercises developed by the researcher in all clubs in Baghdad governorate and for the youth group, as it is useful for preventing muscle injuries, including injury to the posterior thigh muscles.
2) Interest in adopting the scientific method in modern training, which means the comprehensive development of all the muscles of the player, especially those that have to do with the variety of activity involved.