Related Research Works

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maximum strength and speed power qualities, this is only achieved through exercise with extreme physical stress [74].

1.6. Related research works

1.6.1. Research projects abroad

Typical foreign research works are the weightlifting book edited by AN Voroboep in 2000 (translated: Nguyen Quang Hung, Nguyen Dai Duong, Sports Publishing House, Hanoi) [74] and Weightlifting Textbook by Prof. Duong The Dung, Chengdu Academy of Physical Education and Sports, China is the editor [24]. These are two typical works, which play an important role in the theoretical and practical research orientation of the thesis.

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In the book Weightlifting, edited by AN Vorobiep, published in 2000, [74] presented a systematic, complete presentation of weightlifting training with a large volume of illustrative data on the world's top weightlifters. gender. This is identified as an important theoretical basis in the process of training weightlifters at all levels.

Similar to the book Weightlifting by AN Vorobiep, The Weightlifting Textbook edited by Professor Duong The Dung, Chengdu Gymnastics Academy, China, also systematically presents the training of weightlifting athletes with participation. by a series of scientists, China's top weightlifting coach. The course covers the basics and important of weightlifting training, which are:

Overview of weightlifting. Weightlifting techniques.

Theory and methods of physical training. Teaching weightlifting.

Weightlifting training. Weightlifting competition.

Technical rules and organization of weightlifting competitions [24].

The outstanding advantage of this Textbook is that the theoretical points are clearly illustrated by the system of images and related data of Chinese athletes, a powerhouse in weightlifting in the world today. suitable with the anatomical and physiological characteristics of Vietnamese people.

In addition, the author Truong Tiep with the topic: "Study on the system of criteria for assessing professional fitness of Chinese male athletes" (2011). The research results of the topic have built a system of indicators to evaluate the professional fitness of Chinese male weightlifters in 2 light weight classes, 56kg and 62kg. The system of indicators consists of 3 groups: morphology, function and motor qualities [61].

1.5.2. Research projects in Vietnam

In Vietnam, the research related to the thesis topic focuses on 2 main research directions:

Firstly, research works on methods and means of professional physical training for weightlifters.

Second, studies on the selection and evaluation of the training level of weightlifters.

In the first direction, it is possible to mention the research works of authors such as: Do Dinh Du (2002), " Research and application of the exercise system to develop maximum strength for weightlifters aged 14- 16 in the national sports program at the University of Sports and Physical Education I ” [22].

The research results of the topic evaluated the reality of maximum strength training for 14-16 year old weightlifters in the national sports program at the University of Sports and Physical Education I, then selected and application of a highly effective exercise system to develop maximum strength for athletes.

Author Vu Duc Hoang (2008), " Research and application of exercises to develop professional fitness for female weightlifters aged 17-18 in Nghe An province " [32]…Conclusion

The research results have selected 05 tests to assess the professional fitness level of female weightlifters aged 17-18 in Nghe An province, running 30m XPC; Turn on far in place; High bounce in place; Gesture jerky; Push gesture. At the same time, 19 exercises were selected and applied to develop professional physical fitness for female weightlifters aged 17-18 in Nghe An province, which are: Running 30m XPC; Running 60m XPC; Jump 1 step - 10 steps; Turn on the stairs; High bounce in place; Turn on far in place; Ke belly 90 0 on the scale; Throw the dumbbell back; Gesture jerky; Maneuvering push; Front load; Rear load; Extend; Narrow pull; High recoil; High speed; Hold weights on a wooden platform; Pull up hanging dumbbells and Up to chest high.

In the second direction, it is possible to mention the research works of the authors Ngo Ich Quan (2009), " Determining the test to check the training level for weightlifters in the stage of deep specialization ", (theme grassroots level - Bac Ninh University of Sports and Sports) [51]. The research results of the topic have identified a system of tests to check and build a scoreboard, classification standards and evaluation standards for general training for weightlifters in the intensive stage of specialization at school. Bac Ninh University of Sports.

Ngo Ich Quan (2010) "Effective proportion of constitutive factors on the performance of male weightlifters in the initial stage of specialization" (grassroots topic - Bac Ninh University of Sports and Sports) [52]. Through the selection of tests to evaluate the factors that contribute to the performance of male weightlifters in the initial stage of specialization, the study has clearly determined the proportion of the influence of the components on the athlete's performance. The research results of the topic have important implications in the assessment of physical fitness as well as determining the proportion of training for athletes at the initial stage of specialization.

Dang Thi Hong Nhung (2012), "Selection of talented athletes in weightlifting" (grassroots topic - Institute of Sports Science) [41]. The research results of the topic have systematized the knowledge about talent selection of weightlifting athletes, thereby selecting and building

develop criteria for selecting talented weightlifters. The research results of the topic make an important contribution to the selection and training of weightlifting athletes.

Dinh Hung Truong (2018 ), Evaluation of the change in the amount of exercise and competition of the national youth team weightlifters in the training cycle of the year , [69]. The results of the study were:

Assess the current status of the content of the training program and the evolution of the amount of exercise and competition of the national youth team weightlifters in 2018.

Assessing the impact of physical activity on the preparation level of national youth team weightlifters aged 15 - 16 out of 4 contents: morphology; physical qualities; psychology and performance of weightlifters.

Do Dinh Du (2018), Research and develop standards for assessing training levels for national team weightlifters, Athlete training center, Bac Ninh University of Sport and Sport, grassroots level project, Northern University of Sports and Sports Ninh [23] ... Research results of the topic have identified 17 tests and developed criteria for assessing power weightlifting for weightlifters aged 15 - 16. The tests include: Front load (kg); Rear load (kg); Jerking (kg); Up chest sitting deep (kg); High recoil (kg); High chest (kg); Push on rack (kg); Straight leg jerk (kg); Wide hard scissors (kg); Narrow hard scissors (kg); Borrow thrust (kg); Push on rack (kg); Body flexion (kg); Wide traction (kg); Weights on the load rack ½ (kg); Standing push (kg); Thrust (kg);

Besides, it is possible to mention the research work of author Dang Van Dung (2012) with the topic: Research on building strength training programs on exercise machine systems [25]. Although the subject of the study is sports students and the main means to develop strength is the exercise system on the exercise machine system. However, the research results of this topic are also an important basis for the research process of the thesis on strength training program as well as the development characteristics of the test criteria of strength capacity.

The domestic research works are an important theoretical and practical basis for the thesis to determine the methods and means of training and assessing the level of weightlifting athletes in the practical conditions of Vietnam.

1.7. Chapter 1 review.

From the above analysis, we have the following conclusions:

Weightlifting is a weight class competition, the determining factor in the achievement of weightlifters is strength capacity. In the process of strength training for athletes, the selection of exercises, determining the amount of exercise have the most important role, directly affecting and determining the athlete's performance. In order to be able to control the targeted use of exercises, the basic task in each training phase must be clearly defined and attention must be paid to the optimal duration of each exercise. To do that in the process of HLTL for trainees need to master the following issues: Content of physical exercises; Form of physical exercise; Quality of physical exercise; The intensity of the amount of exercise; Mass of the amount of movement; The duration of the amount of exercise; Methods of exercising quantity; The structure of the amount of movement.

The means of specialized physical training for weightlifters are physical exercises with movements similar to movements, techniques for weightlifting are jerks and pushups, and combined exercises between jerks and movements. push and control exercises, muscle concessions.

Strength training methods for weightlifters: Based on the type of muscle contraction, strength training is mainly divided into two main categories: dynamic strength training and static strength training. The method of strength training is determined by the following factors: intensity (weight to be carried), number of groups, number of repetitions per group, rest time between groups. With the continuous development of modern training theory, motivational strength training has become

the most basic and most basic form to develop athletes' strength in sports competition.

The amount of movement of specialized physical training exercises for weightlifters must be suitable for each subject with different levels of training, must specify the number of times to lift weights, total weight, volume and intensity of implementation… in each type of training plan.

Chapter 2.

SUBJECTS, METHODS AND ORGANIZATION OF RESEARCH.

2.1. Research subjects

2.1.1. Research subjects

The object of the study is strength development exercises for male weightlifters aged 15-16 on the national youth team.

2.1.2. Research object

Observation objects include:

31 experts, coaches, teachers, and managers of weightlifting in the country.

10 weightlifters aged 15-16, Northern region. Through this object, in order to determine the test system and build the standard of strength assessment for male weightlifters from 15 to 16 years old.

14 male weightlifters aged 15-16 from provinces, cities and industries such as Yen Bai, Hai Duong, Ministry of Public Security, Thai Nguyen and Hai Phong and Khanh Hoa were called up to the national youth team. Through this object, to refer to the views and issues related to the topic and assess the actual strength of athletes.

Experimental subjects : 10 young weightlifters aged 15 - 16 of the national youth team and were recruited from provincial units and branches throughout the country. Through this object, the topic determines the effectiveness of the selected strength training system.

2.2. Research Methods

To solve the research objectives set out, the thesis has used the following research methods:

2.2.1. Methods of analyzing and synthesizing documents

The use of this method aims to form the theoretical basis of the topic, thereby orienting the practical research [35], [55], [75].

In addition to analyzing and synthesizing relevant documents on the training and training of athletes, the topic focuses on analyzing and synthesizing documents on physical training in general and strength in particular for athletes. weightlifting.

The result of using this method is to determine the theoretical basis of strength training exercises, strength capacity assessment tests for weightlifters aged 15-16, in line with practice in Vietnam. .

During the research process, the thesis analyzed and synthesized 86 references, of which 04 were in English and 06 were in Russian. These documents are presented in the References section.

2.2.2. Interview method - talk

Using this method to determine the practical basis of strength exercises as well as evaluation tests through the opinions of domestic and foreign experts who are teaching, training, and administering the subject. in our country today, in the form of questionnaires and discussion.

The subject of the interview are coaches, teachers, experts, and professional weightlifting managers in the country... The issues that the subject is interested in when using this method are: Forms of training strength, standard tests used to test and assess strength for weightlifters, forms of training organization, order of training exercises according to priority physical qualities in the process. training, volume and intensity when using exercises in training sessions in the annual training program for 15 - 16 year old weightlifters. These are the scientific bases for selecting and arranging exercises. develop the components of strength in a reasonable and highly effective way during the research of the subject [35], [55], [75].

During the research process, the thesis used the method of determining the quality of opinions assessed by the Liker scale built by the American psychologist Likert, the evaluation levels were conducted on a 5-point scale.

Date published: 02/01/2023

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