Introduction The specific of the sports teacher work requires a good academic background and a certain level of physical fitness, sports and technical skills and movement culture. These facts underlie and provoke our interest in the presented issues. Methodology The Methodology of the survey is complex and includes: desk research of literature, teacher observation, testing, anthropometry, mathematical and statistical data processing and analysis. This survey was conducted during the academic year 2015/16. Objective of the study is detecting the factorial structure of physical development and physical ability of students, IV year in the NSA "Vassil Levski"-Sofia. Subject of the study are the signs of physical development and physical ability of students. Target group of the study: 48 students, IV year, Coaches' faculty and Teachers' faculty of the NSA. For the purpose of the study, a 9 indicators testing of students was conducted, carrying information about main signs of physical development and physical ability. The results from the study have been processed by variation and factor analysis. Results Three main factors that characterize the specifics of the surveyed targeted group, have been outlined, which are explaining the total percentage of the starting dispersion of the studied process (67, 08%). Discussion and conclusions The most important for the studied population students is the morphological factor, which shows high importance of: weight-lifting parameters and strength of upper limbs. On second place about the importance of physical fitness by the studied population are: speeding and speed-power capabilities of the lower limbs. On third place are: the speed-force abilities of abdominal and spinal muscles.

In many methods in different sports, mobile games are used to improve the motor abilities of adolescents. We have developed and tested a methodology based on mobile games in tennis training. The study aims to optimize the physical preparation of the 10 years old boys who are training tennis in school in an extracurricular form of education through the tools of the moving games. The оbject of study are 40 boys, 10 years old (3rd grade) divided into two groups of 20 children - experimental and control. The subject of the study are the signs of physical development and motor skills. To establish the effectiveness of the applied methodology, testing was carried out twice with all participants in the study (at the beginning and the end of the experimental period) on six tests, two physical development indicators, and BMI. The results were subjected to mathematical and statistical processing by Variation analysis, Comparative t-criterion of Student, BMI. The analysis of the results shows that, at the end of the experiment, the experimental group has higher achievements in all studied indicators. Unlike the first test, however, in which there were insignificant differences between the two groups in the level of development of the studied traits, in the second test - the ratio changed in favor of the experimental group. It can be argued with a high guarantee probability that the specific work with the means of mobile games applied by us has led to a significant increase in the level of development of the boys in the experimental group speed endurance, the explosive force of the lower limbs, both in vertical and horizontal efforts. As the main conclusion of the study, we could conclude that the experiment, through the means of mobile games in general, has positively influenced the development of basic motor skills, physical ability, and health status of students.

In this article the current adaptation abilities of the cardiovascular system (CVS) of 227 students from two faculties of NSA Vassil Levski-Pedagogy and Kinesiotherapy is studied. The research methodology is complex and involves the study of literary sources, testing, mathematical-statistical processing and analysis. For the purpose of the study, a 3-minute standard YMCA load test was conducted. Test results are processed by: variation analysis, frequency analysis and 7-point scale method.

The aim of our research is to reveal the factor structure and to identify the main factors of the physical development and physical capacity of the studied population. Subject of the study are the factors of physical development and physical capacity of students. Object of the study are 41 student girls from UNWE. The following research methods were used to solve the aim and tasks of the study: Theoretical analysis, anthropometry, sports-pedagogical testing, mathematical and statistical methods. Six morpho-functional indicators were used to assess the physical development, including calculation of Body Mass Index (BMI). In order to determine the physical capacity of the students, 8 indicators were tested. In order to process the results of the study, we used: Variable and Factor Analysis-To reveal the factor structure and to identify the main factors of physical development and physical capacity in the studied population. Correlation matrices are factorized by the main component method, followed by Varimax orthogonal rotation (Wainer, Braun, 1988). The factor structure of the physical development and the physical capacity of the students studied by us from the University of National and World Economy is made up of 5 main factors, which in their entirety explain the high percentage of the initial variance of the studied phenomenon-76.51%.