The assessment of footballers effectiveness is the key element of control at every step of their training, regardless of on what level they are. What seems essential is the prediction of footballers' actions, the height of which is achieved in the time directly preceding taking part in competition. Therefore, twenty footballers took part in the study which involved efficiency tests concerning maximum speed in 5 meters and 20 meters races as well as endurance measured by Beep Test. The tests were conducted at the end of lead time. Additionally, the effectiveness of action was measured in the initial perdion. No significant correlations were found between the tested variablesspeed tests and effectiveness of game. A significant relationship was found only between the endurance measured by Beep Test.Summing up, the only factor significantly correlated to the effectiveness of footballers' action was endurance and it can be therefore seen as crucial in terms of motor preparation, at the tested sport level.

Baseline characteristics of 31 healthy male U15 soccer players who were classified as select or non-select at the end of the season were compared. Players were 14.4 ± 0.54 years (13.6–15.3 years) at baseline; characteristics included body size, proportions and composition, estimated maturity status, several functional capacities, and coach classifications of potential in the sport. Decisions regarding selection or non-selection were made about two months after baseline. Select and non-select U15 soccer players differed significantly in estimated maturity status, body size, proportions and estimated muscle mass, functional tests related to speed, power and strength, and coach evaluation of potential, specifically tactical skills on offense and skills associated with creativity and decision making. When age and biological maturity status were statistically controlled, select and non-select players differed significantly only on the vertical jump, grip strength, and coach ratings of tactical skills on offense and of creativity and decision making. Results of stepwise discriminant analysis highlighted the importance of coach evaluation of tactical skills associated with offense, and of power and strength in distinguishing select from non-select players. The results highlight the advantages of advanced biological maturity status among adolescent male soccer players and also the importance of coach perceptions of talent. The latter implies a need for further study of the basis of coach perceptions, specifically how they are influenced by and perhaps interact with player characteristics at different ages, and how the perceptions influence playing time and player behaviors and interactions.

Constant development and commercialization of football makes it somewhat compelling to look for proven solutions in order to determine both the represented players' level of competence and the most important components of the effectiveness or efficiency of a game. Evolution of walking distance over the years directs attention towards the aerobic motor skills. In this report, there have been made attempts to determine the relationship between the effectiveness of the game and the endurance of the tested football players of the BSC Eintracht Südring Berlin club. The research covered a group of 22 players from the Berlin club. The tests were carried out in the autumn round of the 2018/2019 season in Berlin in the period from July to November 2018. The endurance was measured with the help of the Cooper Test, while the players' performance was evaluated by the method of competent judges. The results of the study were statistically analyzed in the Statistica 13.1 program. Descriptive statistics were carried out, the minimum (min), maximum (max), average (X) and standard deviation (SD) values were calculated, and the coefficient correlation was determined. It was noted a significant correlation between the effectiveness of the game and the endurance.

BACKGROUND: Information about competitive loads of amputee soccer players are very limited. This element should be one of the base to prepare appropriate training program according to individual needs of players, as well aims of season. The main aim of this pilot study was to describe the characteristics of selected elements of the internal competitive load of football players after unilateral amputations.METHODS: The subject involved a group of 15 Polish National Amp Football (PNAF) players after unilateral amputations of the upper or lower limbs. The age, height and weight were 27.1±8.4 years, 176.2±7.3 cm, 72.0±14.2 kg, respectively. The information were recorded during match between PNAF Team and representative of Polish Clubs, using Polar Team 2Pro System. The data base was analyzed using standard tools and differences among variables was checked by Wilcoxon test.RESULTS: During whole games value of HRmean was 132.6±10.56 bpm with a range from 87.3±10.6 bpm to 182.3±10.69 bpm and energy expenditure was 612.7±164.86 kcal. General, Values of observed variables were higher in the 2 nd part of the match but differences among them was not significance.CONCLUSION: Characterizing the competitive effort will allow to diagnose and determine the nature of the work to use it as specific requirements of the discipline. It can be expected that these information will contribute to the improvement the training process for AMP Footballers and optimize training of the disabled people.

Purpose: At the highest level of the competition, the players tend to have a comprehensive motor, technical-tactical and mental preparation. It is assumed that in the training process of young players, speed is an important factor determining sports success. Therefore, the aim of the study was to try to compare the speed abilities indicator of young footballers during the summer and winter preparatory period. Material and methods: The research was conducted in July 2019 and January 2020 in Poznań. The research subject consisted of 23 young players of the Warta Poznań club in the age category of the junior football players (U14). Results: The results were statistically processed, basic descriptive characteristics were made, the normality of the distribution of differences was checked using the Shapiro-Wilk test, and the collected results from two tests dates were compared using the Student's t-test for dependent samples. Based on the the conducted research, no significant change in the starting speed level was observed at the distance of 5 meters and 15 meters, while an improvement in the level of speed abilities in terms of locomotion at the distance of 30 meters was noted. Conclusions. The level of running speed at a distance of 30 meters in the tested competitors changed in the six-month preparation cycle. There was no change in the starting speed level over the distance of 5 and 15 meters in the competition season between the preparatory period and the end of the autumn round in the competitors of the Poznań Warta club. On the basis of the conducted research, it is worth conducting experimental research based on individualized speed training on a group of 13 - 14 year old players.