e aim of this study was to examine the in uence of proprioceptive training on explosive strength, agility and coordination in young rhythmic gymnasts. e study was conducted on a sample of 74 healthy girls, aged 7 to 9 years of age who train rhythmic gymnastics. e whole sample was divided into two groups: experimental (43 girls) and control (31 girls). e experimental group had the proprioception training before their regular trainings for 12 weeks (24 trainings), while the control group had only rhythmic gymnastics trainings. E ects of proprioceptive trainings on the examined motor abilities were estimated by two explosive strength tests, three coordination tests and two agility tests. All respondents were tested before the application of the experimental treatment (pre-test) and a er its completion (post-test). To examine di erences in the achieved results between the initial and nal measurement for each group, t-test for dependent samples was used. To determine di erences between groups at the initial and nal measurement, t-test for independent samples was used. By comparing results from the initial and nal measurement, improvement in all tests for the observed abilities was perceived in the experimental group, while improvement in coordination tests and one agility test was noticed in the control group. Testing di erences in results between groups in the nal measurement showed that there are di ered only in agility tests, and in favour of the experimental group. Based on the obtained results, the conclusion was that the application of proprioceptive training in rhythmic gymnasts can contribute to improvement of agility, while in other observed abilities we cannot conclusively claim that improvement was the direct product of proprioceptive training.

Purpose: The aim of this study was to explore the strength capacities of the injured and non-injured leg following a unilateral anterior cruciate ligament reconstruction. Methods: Eight elite soccer players (age = 25.5 ± 3.9 years; height = 1.83 ± 0.04 m; body mass = 78.9 ± 4.5 kg) volunteered to participate in this study. Nine months after the anterior cruciate ligament reconstruction and just before initiating the full training process, the maximal peak torque of the quadriceps and hamstring muscles were measured at 60 and 180 degrees/ second using isokinetic dynamometry. Obtained peak torques were used for calculating hamstring-to-quadriceps ratio, limb symmetry index, and to estimate maximal torque capacity using a two-velocity method (i.e., linear torque-velocity relationship modeled considering peak torque obtained at 60 and 180 degrees/second). Results: No differences were found between hamstring-to- -quadriceps ratios of the injured and non-injured leg (p = 0.165), nor between limb symmetry index of the quadriceps and hamstring muscles (p = 0.985), regardless of the angular velocity applied during tests. The two-point method revealed significant differences between quadriceps and hamstring muscle groups both in the injured and non-injured leg (p < 0.001; maximal estimated torque was higher for quadriceps compared to hamstring muscles), while the differences between same muscle groups of the different legs were not significant. Conclusions: Collectively, these findings indicate that 9 months were enough for reaching a certain strength level of the injured leg that permits a safe return to play.

СажетакРазвој моторичких способности тече према одређеним законитостима, које су у периоду раста и развоја организма посебно везане за узрасне карактеристике. Циљ овог истраживања је утврђивање тренда развоја неких моторичких способности код девојчица које се баве ритмичком гимнастиком. Истраживање је извршено на узорку од 202 девојчице узраста 5 до 14 година, које су према узрасту подељене у више субузорака. Применом одређених тестова за процену координације, агилности, експлозивне снаге и равнотеже, извршена је процена моторичког статуса, а т-тестом утврђена је значајност разлика у постигнутим резултатима код испитаница различитог узраста. На основу добијених резултата, јасно се види да развој моторичких способности не тече уједначено кроз посматрани период развоја. Показало се да је генерално најосетљивији период у развоју свих анализираних моторичких способности између 6. и 11. године, као и да свака од посматраних способноси кроз овај период показује различит тренд развоја.

Sport discipline ice climbing was built on the reputation of climbing frozen waterfalls and can be de ned as a unique discipline under the International Climbing and Mountaineering Federation (UIAA) in arti cial, prescribed conditions, and according to certain rules. Due to the lack of articles about the motor activities of top ice climbers, the aim of this study is to determine sport performance of ice climbers, both genders, in discipline "lead climbing". Both genders are analysed, because in this sport discipline there is positive discrimination, due to the weaker characteristics of the female climbers. e propositions de ne that women and men have di erent climbing routes. erefore, the sample were UIAA World Cup nalists in Beijing (2017) in lead climbing discipline, 8 men and 8 women. e method of work is the analysis of sport performance using the notation analysis. It was found that the average time of the race for men was 224.52 ± 98.81 seconds, of which the active climbing time was 103.88 ± 48.97 seconds, while the passive climbing time-pauses was 119.66 ± 50.40 seconds. e average time of the race of women was 219.09 ± 62.11 seconds, of which the active climbing time was 108.52 ± 31.37 seconds, while the passive climbing time-pause was 110.58 ± 41.42 seconds. Although men and women climbed in a di erent direction, this analysis did not nd the di erence in sport performance between the gender, as well as in terms of the climbing pace and the type of technique used. e results of this analysis can be of great importance to trainers for practical work, for the immediate preparation of competitors for participation in UIAA ice climbing competitions.

In this study, the efficiency of female students in overcoming program of practical classes of the subject Theory and methodology of sport gymnastics on academic studies of the Faculty of Sport and Physical Education in Belgrade was analysed. The purpose of this survey was to propose changes for the sake of increasing the efficiency of studies based on the estimated accomplishment in acquiring skills as one of the measures of the instruction quality. In order to determine the direction of these changes, the relations of good results in overcoming the individual units of the program of practical classes, success in mastering rhythmic and acrobatic contents, and achievements in overcoming program of practical classes by disciplines were examined. The study is of transversal type and is based on ex-post-facto proceedings. An experimental effect presented a regular program of exercises realized in the framework of practical classes in the duration of one school year. A descriptive method was applied, as well as the method of content analysis For a statistical interpretation of data, the T - test for dependent samples, and Wilcoxon rank sum test were used. The results indicated that female students were significantly more successful in overcoming the compulsory compositions than in colloquiums and in free compositions, as well as in overcoming the pre-examination and examination commitments on the floor and the beam in relation to the loom and leaps Respectable performance assessment enabled the proposal of solutions for the purpose of improving the quality of teaching. The effects of suggested changes in the organization of practical classes should be monitored in the work with the future generations of female students.