The aim of this study was to examine whether additional training protocol of isokinetic training results in increased biomechanical values of certain parameters and whether it increases functional correlation between speed and strength leading to improved performance of acrobatic elements in floor exercises. Additional training protocol, which lasted for one semester,  was performed on Biodex 3 apparatus (60°·s–1). Examinees participating in this research were (N = 80) male students from Faculty of Sport and Education (mean age, 19.8 ± 1.7 year; weight, 75.2 ± 2,9 kg; height 179.7 ± 6.4 cm). Control group (N = 40), between two measurements, conducted only regular practical teaching program of artistic gymnastics. Experimental group (N = 40), besides regular practical teaching program of artistic gymnastics, also had additional program of isokinetic practice on Biodex 3 apparatus. Experimental group showed obvious structural changes that can be dominantly registered through variables assessing the maximum strength of the dynamic knee stabilizers (the maximum moment of force, overall work and average strength) and reciprocal relationship between agonist and antagonist muscles. In variables assessing the performance of elements of floor exercises in artistic gymnastics we obtained statistically significant differences in elements requiring changes of the maximum strength of the dynamic knee stabilizers: dive roll, back handspring, salto forward and backward tucked.

Discussions on quality of university teaching are numerous and under the public eye. At contemporary market conditions where responsibility and evaluation of academic institutions is accentuated there is a need for innovations of methodical organizations of teaching work for the purpose of development and promotion of quality of academic teaching and higher education. The accent is on pleasure and requirements of students, competencies of teachers and labor market expectation as well as the community. The purpose of this paper is to present characteristics of interactive teaching in relation to quality of academic teaching and establish whether university teaching through interactive learning and teaching emphasizes cooperative and partner relations through position and role of students and teachers. In terms of methodology, the method applied is one of meta-analysis for research studies that dealt with studying of characteristics of academic teaching (innovations in learning and teaching, project-co-relation approach realized through connecting of teaching contents and differences in teaching organization, and the like) based on which it could be said that problems of contemporary researches in the area of academic didactics mainly encompassed micro organizational structure of teaching work. Analytic-descriptive method was used with the procedure for content analysis. The basis was the assumption that didactical methodical structure of teaching work according to the model of interactive teaching contributes to creation of co operational and partner relations through positions and role of students and teachers which is reflected to higher quality of academic education. The results of this research indicated that interactive teaching with suitable methodical-didactical structure of organization of teaching work contributes to development of cooperative relations that were neglected in the concept of traditional paradigm of academic education which contributes to quality of academic

Dam Modrac is multiple arched reinforced concrete buttress dam, with nine buttresses and ten arches, which by its technical characteristics and volume of the accumulation is considered as one of the high dams. Crown level of spillway is 200.00 m a.s.l. Crest length is 205.00 m, while the maximum height is 27.50 m. To control the water level in the reservoir, under normal hydrological conditions, there are four basic discharges with maximum capacity around Q = 77 m3/s for the projected state. The paper gives an analytical expression of the spillway curve and analytical expressions of amounts of water discharge separately for each bottom outlet, which are obtained by conducted measurings. Special significance of this paper gives volume curves for hydro accumulation Lake Modrac for projected state and the period of use of the system.