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.

This research was conducted with the aim of determining the effects of the sports elements of the military training on qualitative changes of morphological characteristics, in soldiers - conscripts of the Armed Forces, and which is not only designed to achieve scientific results that would be academically defended, but also it should represent a way of controlling the results achieved by applying the scientific methods, critical reviewing and correcting any noticed weaknesses. The population from which the sample was derived were soldiers-conscripts who were on a quarterly training at the training centre in Pazaric. The total sample consisted of 435 conscripts-soldiers (men) from all over Bosnia and Herzegovina, aged 19-26 years. The variables chosen for this scientific work hypothetically covered spaces of morphological characteristics (10), and included spaces: longitudinal dimensionality of the skeleton, subcutaneous fat and circular dimensionality of the skeleton and body mass in soldiers conscripts who were on a quarterly training in training centre for basic training in Pazaric. The gained results of the factor analysis in the area of morphological characteristics show that the two main components (factors) were isolated (extracted) on the initial and final measurements, which tells us that the Plan and the program of physical training, greatly contributed to the qualitative transformation of morphological characteristics with conscripts of Armed Forces conditioned by sports content of military training for a period of three months.