Прегледај по Аутор "Pavlovic, Ratko"
Сада се приказује 1 - 5 од 5
Резултати по страници
Опције сортирања
- СтавкаEffects of vertical and horizontal plyometric exercises on explosive capacity and kinetic variables in professional long jump athletes(IP Iermakov S.S., 2021) Vazini Taher, Amir; Pavlovic, Ratko; Ahanjan, Shahram; Skrypchenko, Iryna; Joksimovic, MarkoBackground and Study Aim. Athletic jumps are specific cyclically-acyclic movements that despite the good performance of the techniques require from competitors a high level of motor, specific-motor and functional abilities. The aim of this study was to examine the response effect of vertical and horizontal plyometric training on explosive capacity and kinetic variables in long jump athletes. Material and Methods. The participants of this study were twenty professional jumpers (22.5 ± 4.2 years; 178.4 ± 9.8 cm; 70.3 ± 7.6 kg) who were divided into two groups: experimental (plyometric training) and control (standard training). They participated in the last track and field championship in country, moreover, three of them participated in the last Asian games, and one athlete participated in the world track and field championship. The experiments were conducted on June-July 2019 in twenty professional athletes. All tests were performed after a standard warm up protocol. The place of camera was always determined wisely around the jumping field to attain best photography. Organizing and controlling the imaging and motor analysis processes were done by a biomechanics expert. Results. Post training results in experimental group showed more improvement in 30 m sprint, vertical jump, horizontal velocity at take-off, and long jump completion, comparing the control group. Significant between group differences in all variables were detected post training. No significant post training improvements in flight time and take off duration were reported in control group. Conclusion. Vertical and horizontal plyometric training protocol was shown to be more effective in promoting improvement in explosive capacity than kinetic variables.
- СтавкаGross Motor Skills Levels in Children with Autism Spectrum Disorder during the COVID-19 Pandemic(Horizon Research Publishing, 2021) Phytanza, Diajeng Tyas Pinru; Burhaein, Erick; Pavlovic, RatkoThe purpose of this study was to determine the level of gross motor skills in ASD children during the COVID-19 Pandemic. Participants in this study were ASD children with a total of 25 children aged 8-12 years (M = 10.02; SD 1.27), who were selected by random sampling technique. This research instrument is the Test of Gross Motor Development-2 (TGMD-2). Data analysis in this study is descriptive analysis. The results of gross motor skills show that 20 ASD children are in the average standard score of 4-5 (gross motor question = 70-79) in the low assessment category (80.00%) and 5 ASD children are in the average standard score of 1-3 (gross motor question = <70) is included in the very low assessment category (20.00%). Therefore, the majority of the total gross motoric data for ASD children are in the low category, namely 20 children or 80.00%. This research is not without limitations in its implementation. This research contributes to the implementation of future research, namely the need for treatment to optimize Gross Motor skills in Children with Autism Spectrum Disorder during the COVID-19 Pandemic. The urgency for proper and measurable treatment and the limitations of this study are important things to pay attention to for further research
- СтавкаPredictive value of kinematic indicators for shot put result and selection of novice athletes(H.S. Skovoroda Kharkiv National Pedagogical University, 2021) Almadhkhori, Hikmat; Pavlovic, Ratko; Skrypchenko, Iryna; Rafahiya, Bouchareb; Singh, R. Ram MohanPurpose: to determine the most significant kinematic indicators in the sports selection of beginner shot putters. Material and Methods: This study was carried out on a sample of 9 students at the fourth stage of the competition in Division 1, which took place in the 2017/2018 academic year at the Faculty of Physical Education of Maysan University. The following kinematic (biomechanical) parameters were analyzed: the angle of release of the nucleus, the velocity of release, the height of the point of ejection of the nucleus and the speed of swing. The correlation coefficients were determined between the kinematic indicators and the result in the shot put, as well as the regression equation for the dependence of the result in the shot put on the knematic indicators. The data obtained in the study were presented in the form of the arithmetic mean, standard deviation, median, skewness coefficient, Pearson's correlation coefficient, analysis of variance and linear regression, which included the contribution coefficients of each analyzed indicator, standard error, reliability of the regression equation as a whole, and reliability of the coefficients contribution to the shot put result of each kinematic exponent. Results. It has been shown that the swing speed has the greatest influence on the result in the shot put among beginner athletes. The swing speed, shot angle, shot speed and shot height have significant relationships with the shot put result. The multiple regression equation for the dependence of the shot put result on the swing speed, shot angle, shot height and shot point turned out to be reliable in general. However, only the swing speed has a reliable coefficient of the regression equation. The shot angle tends to be the determining factor in the shot put result. The release rate and the height of the release point have significant correlations with the shot put result, although in the regression equation they have unreliable indicators of influence on the shot put result. Conclusions. When teaching beginner shot putters, the greatest attention should be paid to the pushing swing technique, namely the swing speed. The second most important indicator is the angle of the shot put, it is recommended to use the basic prediction equation, which determines the expected results in the selection of young athletes in shot put, with high reliability of the results obtained. These characteristics are recommended to be used for evaluating young athletes, as well as in the process of training and preparing athletes for competitions
- СтавкаThe Relationship of Limb Muscle Power, Balance, and Coordination with Instep Shooting Ability: A Correlation Study in Under-18 Football Athletes(Horizon Research Publishing, 2020) Burhaein, Erick; Bagus Kanang, Ibrahim; Pavlovic, RatkoThe purpose of this study was to examine the relationship between leg muscle power, balance, coordination, and shooting skills in soccer. Participants in this study used 89 soccer athletes with an age range of 15-18 years (M = 17.6; SD: 1.30). The research instrument used a coordination test (soccer wall volley test), balance test (modified bass test), leg muscle power (standing long jump test or broad jump), and shooting skills test. Data collection techniques, namely by measuring tests and measurements by the implementation procedure. Data analysis in this study was using Pearson correlation and regression analysis with the help of the IBM SPSS 24 application. The results showed that: 1) There was a relationship between leg muscle power and shooting ability using instep; 2) There is a relationship between balance and the ability to shoot using the instep; 3) There is a coordination relationship with the ability to shoot using the instep; and 4) There is a relationship between leg muscle power, balance, and coordination with the shooting ability using the instep. Recommendations for further research are suggested to involve other independent variables (X) that are relevant to this study, such as leg length, running speed, and angle of impact.
- СтавкаVascular Rehabilitation Benefits of Tribulus Terrestris (TT), Taurine and High Dose Alpha Lipoic Acid (ALA) Supplementation with Interval Walking Training Program after Surgical Vascular Bypass Treatment (Pilot Study)(Australian International Academic Centre PTY.LTD., 2019) Solakovic, Sid; Pavlovic, Ratko; Vrcic, Mensur; Solakovic, EmirBackground: Some of main raisons for the elderly graft occlusion after successful aortal-iliac, aortal Femoral and Femoral Distal Vein Bypass, progression of main disease, continuing bad life Habits and uncontrolled risk factors such are mostly: poor nutrition traditional or fast food, Smocking and Lacks of Walking and Physical Activity Habits. Objective: The primary objective of the study was to estimate influence of Interval Walking Training Program combine with Tribulus Terrestris, 3-5 gram of Taurine and high dose of 1800mg supplementation of ALA on primary potency and vascular treatment. Secondary goals of this study is determinate by establishing better understanding connection between ordinary vascular walking therapy 30-45 min and interval walking program combine with Tribulus Terrestris, Taurine and high dose of and ALA as secondary supplementation after surgical and endovascular treatment. Methodology: The study included 112 patients, at the Clinic of cardiovascular surgery, Clinical Center University of Sarajevo, age between 50 and 75 (50 patients surgical treated with aortic-iliac, aortic-femoral and femoral distal vein bypass with and without Linton-patch/Taylor patch-first group) and (62 endovascular Iliac treated patients (indication TASC II A and B) with and without support Tribulus Terrestris, high dose of ALA and Taurine - second group). Results: Final analysis has reveal the rehabilitation outcome in 83% patients with bypass above the knee was fully rehabilitated compared to 46,6% patients with bypass below the knee was statistically considered significant by using p value less than (p<0,05) In anamnestic history in 83% patient with amputation above the knee was documented the presence of hypertension, hyperlipidemia, nicotinismus and diabetes compared to 66,7% of patients with amputation level below the knee but there was no statistically significant difference (p>0,05). Conclusion: Interval Walking Training Program on Tribulus Terrestris, Taurine and high dose of ALA had a significantly and successfully higher bypass potency and rehabilitation prognosis compare to patients without supplementation and postsurgical physical therapy concept. It is obviously the is certain link between physical activity, life style modification and serum testosterone on primary bypass potency.