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Cilj istraživanja bio je da se ispita povezanost motoričke sposobnosti snage sa postizanjem rezultata u sprinterskom trčanju radi definisanja testova snage kojima se može vršiti selekcija na časovima fizičkog vaspitanja u uzrastu ranog puberteta. Uzorak je činilo 88 ispitanika ženskog pola uzrasta 12 godina (± 6 mjeseci). Za procenu motoričke sposobnosti snage korištena je baterija od četiri testa koji su propisani nastavnim planom i programom predmeta Fizičko vaspitanje Pedagoškog saveza Vojvodine: varijable eksplozivne snage - skok u dalj iz mesta (cm), bacanje medicinke iz ležanja na leđima (m), varijabla repetitivne snage - podizanje trupa (broj uspešnih pokušaja) i varijabla izometrijske snage - izdržaj u visu zgibom (s). Za procenu motoričke sposobnosti brzine primenjen je standardizovani test koji je predstavljao kriterijumsku varijablu - rezultat postignut u trčanju na 60 m (s). Povezanost sistema prediktorskih varijabli sa kriterijumskom varijablom izračunat je linearnom regresionom analizom, a rezultati istraživanja su pokazali da se na osnovu rezultata prediktorskog sistema varijabli statistički značajno može predvideti nivo sprinterske brzine trčanja. Pojedinačnim posmatranjem varijabli može se uočiti da varijable skok u dalj iz mesta (p=0,00) i podizanje trupa (p=0,00) ostvaruju statistički značajno predviđanje brzine trčanja na 60 m. Analizirajući rezultate regresione analize, može se pretpostaviti da se rezultat u trčanju na 60 m kod selektovanih ispitanica može predvideti na osnovu manifestacija eksplozivne snage nogu i repetitivne snage trupa.

he aim of this study was to examine connection between the motor ability strength and the achievement of results in sprinting in order to define strength tests to perform selection in physical education classes, at the age of early puberty. The sample consisted of 88 female subjects aged 12 years (± 6 months). The batery of four tests was used for evaluation of the motor ability strength, prescribed in the curriculum for the subject Physical Education of the Pedagogical Association of Vojvodina: variables of explosive strength - standing broad jump (cm), throwing medicine ball from lying position (m), variable of repetitive strength - sit-ups (number of successful attempts) and variable of isometric strength - bent arm hang (s). For evaluation of the motor ability speed, the standardized test was applied, which represented the criterion variable - the result obtained in 60 m run (s). The relationship between the system of predictor variables and the criterion variable is calculated by linear regression analysis, and the results showed that, on the basis of the results of the predictor variables system, the level of sprinting speed can be statistically significantly predicted. By observing the individual variables, it can be seen that the variables standing broad jump (p=0.00) and sit-ups (p=0.00) achieve statistically significant prediction of 60 m run speed. By analyzing the results of regression analysis, it can be assumed that the result of the 60 m run in selected subjects can be predicted based on manifestation of explosive leg strength and repetitive strength of torso.

The purpose of this research was to review current research findings related to injuries in elite athletes. For the needs of the paper, professional and scientific literature was analyzed from prestigious scientific journals. The types of athletic injuries that occur are dependent on the athletic discipline. The most commonly injured sites in athletes are the front and back muscles of the thigh and in the ankle joint. The results of this study have indicated that the causes of most injuries are due to overstraining and overload syndrome. These causes often arise from training procedures that have been implemented inadequately and usually relate to the volume and intensity of training without the application of injury prevention techniques.

It is known that various postural deformities affect the eficiency of motor abilities, especilly if the status of longitudinal foot arch, which indirectly affects the whole locomotive system. Previous studies have different approaches and conclusions regarding this issue. Our research was conducted on sample of 75 boys, aged 11-12, participants of athletic school in Novi Sad. Variables’sample consisted of two motor tests: standing long jump and running at 20 meters from high start. The foot status of participants was determinated, in terms of the existence of possible longitudal arch deformities. Based on these variables the total participants’ sample is devided in two sub-samples (group 1 & group 2). Measurement of motor abilities was performed by standard protocol with the written consent of parents. The foot status was determined by using computerised digitalised podography. By using MANOVA, ANOVA and discriminant analysis we came to the results that there are no statistically significant differences in the manifestation of motor abilities which are responsibile for explosive strength and speed between boys with and without deformities.

In aim of correlation between antropometric characteristics and results of swimming 50m crowl a group of 30 swimmers of swimming club „Vojvodina“, aged 13-14, underwent some anthropometric measurements, of longitudinal dimensions such as: body height, body mass, arm length and hand length.Regression analisys showed that body height corellated with 50m crowl score Other measures didn΄t corelatted significantly on this sample. Study results confirms importance of body height of swimmers for successful swimm on 50m crawl in the age 13-14 years

In aim of confirming relations betwen swimming 50m crowl with arms only, swimming 50m crowl with legs only and 50m crowl swimming, a transversal research was carried out on 17 male swimmers aged 15-16. Criteria on this research was 50m crowl swimming – 50mK and predictor variables were: swimming 50m crowl with arms only – 50mRK, swimming 50m crowl with legs only – 50mNK. Regression analisys shows that swimming 50m crowl with legs only significantly correlate with 50m crowl swimming for this sample.

On a sample of 62 resopndets, of which 31 soccer player and 31 tennis player, ages 10 to 13, t-test for two independent groups was determined that there was no statistically significant difference between the results achived in three motor tests: long jumps from place, triple jumps feom place and running in 20 meters. It was concluded that differences in motoric abilities of the respondents in this age were not statisticaly significant.

In order to increase aerobic capacity and the level of endurance while running it is neccessary to apply efficient methods for increasing abilities already mentioned. One of the ways which gradually introduces those who exercise into the practise is to set the tempo of running at a level 20% higher than the current abilities for the whole lenght of a distance , and the lenght of the running sections should be about 20 % of the entire lenght of the distance. Total amount of the running sections should be 20 % longer than the lenght of the entire distance. The lenght of each section should be gradually increased , and breakes should be gradually decreased. The speed of running is obtained and those who exercise are adapted to the tempo of running , which results in rapid development of the adaptation to increased efforts. This makes possible to achieve statisticly significant increasement of endurance in running 800 meters in a short period of time , in just four weeks , with three trainings per week. The advantage of this model is that it could be used for rapid increasement of running endurance in number of sport disciplines.

In order to increase aerobic capacity and the level of endurance while running it is neccessary to apply effi cient methods for increasing abilities already mentioned. One of the ways which gradually introduces those who exercise into the practise is to set the tempo of running at a level 20% higher than the current abilities for the whole lenght of a distance, and the lenght of the running sections should be about 20 % of the entire lenght of the distance. Total amount of the running sections should be 20 % longer than the lenght of the entire distance. The lenght of each section should be gradually increased, and breakes should be gradually decreased. The speed of running is obtained and those who exercise are adapted to the tempo of running , which results in rapid development of the adaptation to increased efforts. This makes possible to achieve statisticly signifi cant increasement of endurance in running 1500 meters in a short period of time, in just four weeks, with three trainings per week. The advantage of this model is that it could be used for rapid increasement of running endurance in number of sport disciplines

For the success in work on the speed of running (sprint), it is necessery to make an optimal screening of talented children (since the sprint speed is highly gentically predisposed). In order to make the selection relevant, it is essential to apply whole series of tests the choice of which is done based on the motor structure of sprint. Optimal design of the tests and their results in the intail measurement are not representative enought to be used to make relevant conclusions. Thet is why it is necessary to do retests after a certain period of time (12 to 18 months) to rule out accelerators in growth and development and single out really talented children who have the high abilty of progress in sprint. Based on the attached table we can see which of the children are above or below their age average, which can be helpful in the selection of talents

The aim of this study is to investigate the differences in parameters of bone mineraldensity in elite track and field athletes and sedentary male controls, respectively non-athletes.The research included 15 athletes who are members of the national junior track and field teamof Serbia and 15 non-athlete boys, aged 17 to 19 years. Sahara (Hologic, Inc., MA 02154,USA) clinical sonometer was used for assessing bone density. The parameters of bonemineral density were measured, Speed of sound (SOS), Broadband ultrasound attenuation(BUA), Bone mineral density (BMD) and Width of the heel bone, as well. T-test for twoindependent groups confirmed that there is statistically significant difference between elitetrack and field athletes and non-athletes in all measured parameters (p < 0.05). The results ofthis study confirm the significant effects of practicing track and field events on increasingbone mineral density and preventing osteoporosis.