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  Subjects -> SPORTS AND GAMES (Total: 199 journals)
Showing 201 - 3 of 3 Journals sorted by number of followers
Journal of New Studies in Sport Management     Open Access   (Followers: 4)

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Facta Universitatis, Series : Physical Education and Sport
Journal Prestige (SJR): 0.111
Number of Followers: 4  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1451-740X - ISSN (Online) 2406-0496
Published by U of Niš Homepage  [11 journals]
  • THE RELATIONSHIP BETWEEN FUNCTIONALABILITIES AND COMPETITIVE SUCCESS OF
           SELECTED JUDOKAS

    • Authors: Filip Nurkić, Ivana Đorđević, Sara Perković, Anja Lazić, Igor Nurkić
      Pages: 153 - 159
      Abstract: The aim of this study was to determine the relationship between functional abilities and competitive success on a selected sample of national-level judokas. The study was conducted two weeks before the national championship. The research protocol consisted of the Special Judo Fitness Test (SJFT) and the Multistage Fitness Test (MFT). The SJFT Index was non-significantly higher in non-medalists compared to medalists (p = 0.12, ES = 0.85, moderate). Estimated maximal oxygen consumption (VO2max) was significantly higher in medalists than non-medalists (p = 0.05). SJFT Index (p = 0.04, r = 0.48, moderate) and VO2max (p = 0.03 r = 0.50, large) significantly correlated with competitive success in judo athletes. There was no significant correlation between the SJFT Index and VO2max (p= 0.38, r = 0.24, small). The main findings of this study were: I) medalists performed the SJFT (lower index) better and had a higher VO2max; II) SJFT and VO2max were related to the competitive success of judokas. The results of the study show that significantly higher values of VO2max and moderately better results on the SPJT (lower values of the SJFT Index) are characteristic of judokas who won medals at national championships than those who failed. The results obtained may be a relatively reliable guideline in the future planning of a specific training process ahead of the most important competition during the competition season.
      PubDate: 2022-12-27
      DOI: 10.22190/FUPES210427014N
       
  • RESEARCH OF PHYSICAL ACTIVITY AS A PART OF HEALTH-RELATED BEHAVIOR OF
           SCHOOL-AGE CHILDREN IN THE REPUBLIC OF SERBIA 2017/18

    • Authors: Slavica Đorđević, Snežana Knežević, Verica Jovanović
      Pages: 161 - 173
      Abstract: Physical activity is defined as any bodily movement produced by skeletal muscles that requires energy expenditure. Reduced physical activity and unhealthy eating habits represent a significant risk to children's health and the formation of a negative attitude toward themselves. Our research aimed to examine how physically active children aged eleven, thirteen, and fifteen are in the Republic of Serbia. The paper used data from the Health Behavior Survey of school-age children in the Republic of Serbia in 2017. The standardized international protocol of the World Health Organization was used to collect data. 3933 schoolchildren aged eleven, thirteen, and fifteen were surveyed. Daily physical activity is statistically significantly different by region at the ages of eleven and fifteen, with a tendency to decrease with age (χ2=39.84; dF=21; p=0.008), and at the age of fifteen (χ2=42.77; dF =21; p=0.003). The most pronounced difference by region is in Belgrade, where the number of physically active children is significantly lower. At the age of fifteen, every fifth child has daily physical activity, while in other regions a third of them do. Children aged eleven are physically active all 7 days a week in Šumadija and Western Serbia (41.2%), in Vojvodina 40.5%, in Southern and Eastern Serbia 39.6%, and the least in Belgrade 37.9%. Based on the analyzed data, it can be concluded that children aged eleven, thirteen, and fifteen in the Republic of Serbia are insufficiently physically active. The results show that it is necessary to intensify health-educational programs and improve cooperation between families, schools, and health institutions in the field of preventive activities.
      PubDate: 2022-12-27
      DOI: 10.22190/FUPES220716015D
       
  • INFLUENCE OF BODY COMPOSITION PARAMETERS ON EXPLOSIVE POWER PERFORMANCE IN
           FEMALE ADOLESCENT FOOTBALL PLAYERS

    • Authors: Ana Lilić, Emilija Petković, Mima Stanković, Miljan Hadžović
      Pages: 175 - 185
      Abstract: The primary aim of this study was to quantify the relationship between body composition variables and explosive power performance in female adolescent football players. A secondary aim was mesure the influence of body composition on explosive power in female adolescent football players. A cross-sectional study included sixteen female adolescent football players (age: 14.5 ± 0.97 years; height: 170.06 ± 4.39 cm; weight: 61.35 ± 11.25 kg) competing as part of  the Serbia Development League. The body composition parameters were: muscle mass in percentage (MM), body fat mass in kg (BFM), body fat mass in percentage (PBF), while explosive power parameters were: CMJ Jump Height in cm (CMJHeight), CMJ Relative maximal F (CMJF), CMJ Relative maximal P (CMJP), SJ Jump Height in cm (SJHeight), SJ Relative maximal F (SJF), SJ Relative maximal P (SJP). Pearson's correlation coefficient was used to determine the correlation between all tests and a simple linear regression analysis was applied to determine the influence between body composition and explosive power performance. Significant regressions were found between MM and CMJHeight (r = 0.50, p ≤ 0.05, R2 = 0.25) and MM and SJHeight (r = 0.69, p ≤ 0.003, R2 = 0.47). Also, regression analyses were found between PBF and CMJHeight (r = 0.58, p ≤ 0.02, R2 = 0.33) and PBF and SJHeight (r = 0.72, p ≤ 0.002, R2 = 0.51). Lower values of body fat mass and body fat mass in percentage and higher values of muscle mass lead to better results in explosive power performance.
      PubDate: 2022-12-27
      DOI: 10.22190/FUPES220826016L
       
  • THE INFLUENCE OF INSTRUCTIONS ON REACTION TIME AND DEFENSIVE EFFICIENCY IN
           FOOTBALL

    • Authors: Lazar Tomić, Bojan Leontijević, Aleksandar Nedeljković, Marko Šmrkić, Aleksandar Janković
      Pages: 187 - 198
      Abstract: Any delay in making a decision in games greatly reduces the efficiency of football players during competitive activities. The aim of this research was to examine the impact of instructions on defensive efficiency. Defensive efficiency was assessed based on the achieved reaction time of the participants in quasi-specific football situations in one-on-one games, using video-based methods. The sample consisted of 20 males, divided into two equal groups: top football players and students. The results of the study have shown that top footballers have a more efficient defensive strategy compared to students, with significant differences observed when presented with stimuli without a fake move (F = 7,190, p = 0.015). The differences were not significant after the response to the stimuli with a fake move (F = 0.348, p = 0.563), but it should be noted that in three out of four cases, the players had a slightly shorter average reaction time. Still, the results have shown that experimental instructions had no effect on defensive efficiency when presenting simple stimuli (F = 2.281, p = 0.148), as well as when presenting more complex stimuli with a fake move (F = 1.170, p = 0.294). Instructions have an important place in young players' training, but defensive efficiency of top players is affected by how well-trained they are, which is manifested through the adopted mechanisms as a result of training. Therefore, it can be concluded that giving instructions must be a part of the individual approach depending on the skill level of the person whom it is communicated to.
      PubDate: 2022-12-27
      DOI: 10.22190/FUPES220906017T
       
  • THE EFFECTS OF A 4-WEEK STRENGTH AND CONDITIONING PROGRAM ON STRENGTH,
           POWER, AND THROWING VELOCITY FOR JUNIOR VARSITY AND VARSITY HIGH SCHOOL
           WATER POLO PLAYERS

    • Authors: Alexander Wakely, J. Jay Dawes, Erika Hernandez, Robert George Lockie
      Pages: 199 - 216
      Abstract: This study investigated the effects of a 4-week strength and conditioning program on the strength, power, and throwing velocity of male junior varsity and varsity high school athletes. Six junior varsity and eight varsity water polo players were recruited. Pre- and post-testing included isometric grip and leg/back strength; vertical jump (VJ); 2-kg medicine ball throw; and maximum throwing velocity with a water polo ball.  All participants completed a 4-week strength and conditioning program designed to enhance base levels of strength. Data was analyzed via a two-way repeated measures ANOVA (p<0.05), including groups as a between-subjects factor measured at two levels (junior varsity, varsity). The within-subject factor (time) represented pre- and post-training measures. Change scores were calculated for each variable; independent samples t-tests (p<0.05) compared change scores between groups. There were significant time interactions for grip strength, leg/back strength, VJ, and throwing velocity (p≤0.031). Post hoc analyses showed that the junior varsity group significantly improved grip strength, leg/back strength, and VJ (p≤0.019). The varsity group improved grip strength and throwing velocity (p≤0.005). There were no significant time*group interactions (p=0.068-0.156), or significant between-group differences in change scores (p=0.134-0.756). Thus, rate of improvement was not different between groups. Nonetheless, a greater adaptive reserve may have existed in the junior varsity group such that they experienced grip strength, leg/back strength, and VJ improvements after a short-term training program. A longer program may be required for varsity athletes to experience pronounced changes in strength and power. Nevertheless, these adaptations could translate into greater throwing velocity.
      PubDate: 2022-12-27
      DOI: 10.22190/FUPES221006018W
       
 
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