Studia Sportiva最新文献

{"title":"Effects of 4-week Olympic weightlifting training on speed and power performance in recreational athletes: Olympic weightlifting effects on speed and power","authors":"Šime Veršić","doi":"10.5817/sts2023-1-4","DOIUrl":"https://doi.org/10.5817/sts2023-1-4","url":null,"abstract":"Olympic weightlifting (OW) is sport with high strength and power demands where athletes need to explosively lift heavy weights. It is consisted of barbell lifting snatch and clean and jerk disciplines. In the strength and conditioning training, OW techniques are often used as a method for speed and power development. The aim of this study was to determine effects of 4-week OW training intervention on speed, agility and power performance among young recreational athletes. The sample of participants consisted of 12 Kinesiology students (average 23 years old). They attended the Olympic Weightlifting course. The training intervention lasted 4 weeks and with 3 training sessions per week in which participants practiced OW training based on learning OW techniques and auxiliary lifts execution. Before and after the intervention, measurement was conducted and included power, speed and agility tests. Squat jump (SJ), countermovement jump (CMJ) and drop jump (DJ) were used to estimated lower body power and medicine ball throw (MBT) for upper body power. Sprinting on 5 meters (S5) and 15 meters (S15) were conducted as power and speed tests, while 20 yards test (20Y) measured nonreactive agility performance. All variables were descriptively analysed and T-test for dependent samples was used to determine possible effects of training intervention. Results showed improvement in jumping capacities, with statistically significant difference noted only for CMJ (p>0.01). Upper body power and agility performance did not show any significant changes, while a decline in sprinting performance was found for both S5 (p>0.01) and S15 (p>0.01). While the results in jumping variables are expected and in accordance with current scientific knowledge, the results in sprint tests are somewhat confusing. Possible explanation for this can be found in the fact that the participants worked for four weeks the tasks that biomechanically are not similar to the structure of sprinting movement. This could suggest that athletes who want to improve their explosive speed capacities should include specific sprint stimuli in their training program in addition to OW training program. In the future, more variables and longer treatment duration need to be applied.","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":"98 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71356076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of a Questionnaire Focused on Sports Coaches Learning","authors":"Michal Roček","doi":"10.5817/sts2023-1-8","DOIUrl":"https://doi.org/10.5817/sts2023-1-8","url":null,"abstract":"Coaching is one of the most demanding social, helping and pedagogical professions. Therefore, research attention is rightly paid mainly to formal coach education aiming at adequate preparation for the practice of this profession. In recent years, however, many empirical studies have demonstrated that non-formal coach education is playing an increasingly important role in coach development in addition to formal coach education. At the same time, research findings show that it is not only the completed “official” coach education that is crucial for the professional development of each coach, but above all, it is the complex results of their lifelong learning. Therefore, it is essential for various sports institutions, for sports educational facilities, especially for coach educators, to have information about the course, features, and potential problems related to lifelong learning of specific sports coaches. Therefore, our paper aims to create a research tool – a questionnaire that identifies the essential circumstances of lifelong coach learning. The design of the questionnaire builds on our previous research on formal, non-formal and informal coach education and, in particular, on the results of many analogous international empirical studies on coach learning. These starting points show that the following areas play an essential role in the lifelong learning process of coaches: (1) personal sports and coaching experience, (2) reflection (self-reflection) of this experience, (3) professional sharing of coach experience, (4) mentoring and (5) accessible and understandable coach learning information resources. We prepared a working version of the questionnaire based on the above principles. This research tool aims to identify sports coaches' learning and education processes. We designed the questionnaire containing 66 items (closed, open, semi-closed, and scales) to suit various respondents – coaches (multiple types of sports, competitive and recreational sports, different age groups, beginners and experienced coaches, etc.). The first stage of verifying the draft version of the questionnaire consisted of an expert assessment. A total of 6 active coaches (three male coaches and three female coaches from the environment of top, competitive and hobby sports), who were acquainted with the theoretical basis of the questionnaire, recommended minor corrections to the questionnaire. The second stage of the questionnaire verification took place in interviews with six coaches (again working in competitive and leisure sports) who were not acquainted with the theoretical basis of the questionnaire. This stage focused on the clarity and unambiguity of individual items. The revised questionnaire was subsequently converted into an electronic form. The functionality of the final electronic version of the questionnaire was verified within a pilot study (n = 18).","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71356140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Endurance Test on the Rowing Machine","authors":"Tomáš Leuchter, Viktor Novotný, J. Novotný, Petr Zahradníček, Michal Polách, Michal Punčochář, Petr Kellner","doi":"10.5817/sts2023-1-3","DOIUrl":"https://doi.org/10.5817/sts2023-1-3","url":null,"abstract":"The purpose of the study was to select or create a test that will be a suitable alternative to the Cooper 12-minute test for a large number of adults who are not able to undergo the running test. A literature review of aerobic capacity indicators and endurance fitness tests on the C2 rowing machine was prepared. The result of extensive research is the design for a simple test with a set duration, when the tested person should try to cover the greatest possible distance (i.e. maximum effort). To verify this, a pilot study was conducted using the new test and collected initial reference values to assess the physical fitness of individuals. A total of 323 students of the University of Defence (270 males, 53 females), aged 20.9±1.82, took the test. The endurance fitness indicators are the distance covered (s, m) and the average power (P, W). Statistical tests (t-test, correlation analysis, non-linear regression analysis, the Kolmogorov–Smirnov difference test, the Spearman correlation) were used to analyse differences and relationships between variables. The results of the pilot study demonstrate the applicability of the created test under required conditions. Significant differences between males and females confirm the necessity of evaluating test results separately for each gender. Low correlations between fitness indicators to body weight and height do not support the need to use relative fitness indicators (per kg of body weight). The results of the study provided initial reference values for individual assessment of aerobic fitness.","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71355981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The First Season After the COVID-19 Pandemic Cardiorespiratory and Statistics’ Performance in Czech Ice Hockey Players","authors":"V. Grün","doi":"10.5817/sts2023-1-9","DOIUrl":"https://doi.org/10.5817/sts2023-1-9","url":null,"abstract":"The study describes the cardiorespiratory and statistics performance of ice hockey players during the season of 2020 after the COVID-19 lockdown’. Eight elite Czech male players (4 non-COVID-19 and 4 COVID-19 groups) were evaluated before and after the competition season. Players performed a cardiorespiratory exercise test and the maximal oxygen consumption, ventilatory threshold, respiratory compensation point, maximal heart rate and test time were measured. The number of matches, goals and plus/minus statistics were retained. No significant differences between groups before and after the season for all cardiorespiratory responses were found, and the no-COVID-19 group played more games. The conclusion highlights that the cardiorespiratory performance place all players (with and without COVID-19 history) in similar conditions to be prepared for the next season. Due to a wide variation among players’ statistics, based on plus/minus parameters, cannot be established that the 2020 season impaired the players’ statistics.","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71356153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What do Experts Think About the Sustainability of Kiteboarding?","authors":"Danielle Heuer, Svatava Janoušková","doi":"10.5817/sts2023-1-12","DOIUrl":"https://doi.org/10.5817/sts2023-1-12","url":null,"abstract":"The relationship between sports and sustainability has been recognized 30 years ago but the impacts of developing sports remain unknown. By combining a scoping review with the Delphi method, our study uncovers the positive and negative impacts of kiteboarding on the social and natural environment. In addition to expected impacts such as improving the fitness of an individual and generating conflicts among kiteboarders and beachgoers, our findings reveal surprising impacts, most of which positive because the experts primarily regard kiteboarding as an environmentally friendly sport. The only severe environmental impact identified by the experts was the lack of recycling of kiteboarding products. Despite the widespread perception of kiteboarding as a sport that contributes to climate change, the experts failed to reach a consensus on the severity of the carbon footprint of kiteboarders, who travel to distant locations. This study highlights the importance of assessing the environmental effects of individuals’ sports.","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71355849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Implementation Methodology of People with Disabilities for Work and Sports/Free-Time Teams","authors":"Lucie Sedláková, Běla Mikulášková, V. Spáčílová","doi":"10.5817/sts2023-1-5","DOIUrl":"https://doi.org/10.5817/sts2023-1-5","url":null,"abstract":"In the last 10 years, the Czech Republic has been struggling with a strong social policy, influenced by the active social policy of post-communist countries. See the article PROGRESSION OF SUPPORT FOR COMPANIES EMPLOYING PEOPLE WITH DISABILITIES, already published in IJMAS vol.8, issue 8. The implementation of people with disabilities on the labour market and in Czech companies is very important if we look at the fact that there is still a lack of workers to fully cover vacancies and a large mass of people who are partially able to work and their potential can only be used. The aim of this survey is to complement previous surveys and to be part of a large research on the issue of disability in the Czech Republic. An in-depth survey was used with the help of in-depth interviews with managers of diversity teams, corporate management and by the employees themselves in the corporations using a questionnaire survey. The sample consisted of 101 workers and 15 team leaders in 8 companies. The result is not a universal implementation methodology for a team leader to integrate a new/existing worker with a health disadvantage into the work team and measure his effectiveness in the team. The question remains how the implementation methodology can be applied outside the work environment, namely to teams of leisure activities of people with disabilities.","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71356086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functional classification and performance in wheelchair basketball","authors":"R. Ceruso, T. D’Isanto, G. Altavilla, Giovanni Esposito, Felice Di Domenico, F. D’Elia","doi":"10.5817/sts2022-1-3","DOIUrl":"https://doi.org/10.5817/sts2022-1-3","url":null,"abstract":"Wheelchair basketball players are classified into four classes based on the International Wheelchair Basketball Federation competition system. The aim of this study was to investigate whether the IWBF functional classification for wheelchair basketball was related to different performance field-based tests. Forty wheelchair basketball athletes took part in the study. The players carried out five field tests, three of which were quantitative, related to the three conditional skills (strength, endurance and speed test) and two of the qualitative type (accuracy and shooting ability tests). Pearson's correlation was performed to analyse the correlation between the score obtained from functional classification and the results of the wheelchair performance tests. The IWBF class was not correlated (p <0.05) with any of the tests performed. Players with even major injuries, in their best wheelchair set-up, even achieved better times than upper-class players; therefore, the disability factor in these tests is not an index that determines performance disadvantage. The study shows that the functional classification does not affect the qualitative-quantitative performance, so the disabled athlete with a lower score is not disadvantaged in basketball.","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48784261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Female Spectatorship and Unsportsmanlike Conduct at Football Stadiums: Case Study from the Czech Republic","authors":"Petr Scholz, I. Růžička","doi":"10.5817/sts2022-1-9","DOIUrl":"https://doi.org/10.5817/sts2022-1-9","url":null,"abstract":"Football is the most popular team sport in the world. It is entertainment, primarily for men, but nowadays, it can be said that the number of women at football stadiums is steadily increasing. Given the long history of spectator sports events consumption, it is not a surprising fact that there have also been serious manifestations of spectator aggression. The paper aims to analyze the relationship between women visitors’ verbal and other expression and their violent behavior on an example of SK Slavia Prague football club. Primary data were collected by a questionnaire survey mainly at the Eden stadium and other selected Czech football stadiums in 2015/16 and 2016/17 seasons. A total of 120 respondents (aged 25.01 ± 10.20 years old) participated in this research, and all of the respondents were attending the matches in a stand of home team supporters. We state that there are correlations between women visitors’ verbal and other expression and their violent behavior; e.g., the surveyed respondents had no experience with demolishing stadiums and other riots. The respondents also consider it to be the most serious activity at 82.58%. The racism display noted similar results. We state that the results are adequate for women visitors.","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45657315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ranking Players by DEA: An analysis of Czech and Danish football","authors":"N. Pelloneová, M. Tomíček","doi":"10.5817/sts2022-1-8","DOIUrl":"https://doi.org/10.5817/sts2022-1-8","url":null,"abstract":"Team managers and coaches need to choose the best players. The selection relies mainly on the cost and performance of the entire team. It is a common practice that several key players contribute to the overall results of the football team. The quality of players is one of the crucial features determining the failure or success of a sports team. The present article focuses on measuring player efficiency in the Czech and Danish top football competitions during the 2015/16 to 2019/20 seasons. The presented research aims to identify the most technically efficient players, considering their position on the field. The authors used an input-oriented model of data envelopment analysis and subsequently also cluster analysis to determine the best football players. The following article may be of interest to football club managers, football analysts, economists and others interested in the business of football because it combines two relatively simple methods of measuring the efficiency of football players.","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41822830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bilateral differences in handgrip strength in Czech female tennis players aged 11–12 years and injury prevention","authors":"T. Válek, Roman Kolínský, P. Konečný, J. Zháněl","doi":"10.5817/sts2022-1-11","DOIUrl":"https://doi.org/10.5817/sts2022-1-11","url":null,"abstract":"The term laterality refers to the preference or dominance of the lateral asymmetry of the human body. The prevalence of left-handedness is reported to be 10–13%, but in some sports (e.g. boxing, ice hockey, tennis), the proportion of left-handers is higher. The left-handedness is considered an advantage in tennis; however, the one-sided load can cause muscular dysbalances leading to injuries. The research aim was to assess bilateral differences in handgrip strength in top Czech female tennis players U12 as to injury prevention. The participants were tennis players (n = 165) aged 11.0–12.9 years taking part in the regular testing by the Czech Tennis Association using the TENDIAG1 test battery between 2000 and 2018. 87.3% of all players were right-handed (RH) and only 12.7% left-handed (LH). Bilateral differences between the right- and left-hand strength of all players were medium significant in favor of the right hand. The assessment of differences between RH and LH players showed only small differences in favor of LH players. There was a medium significant difference between RH and LH players in favor of the dominant hand (DH) over the non-dominant one (NDH). As to injury prevention, it is surprising that a difference between DH and NDH strength >15% was found in 40.91% of RH players and even in 40.06% of LH players. This predicts an increased risk of injury, so it is desirable to pay attention to both sides of the training load and to include compensatory or strengthening exercises.","PeriodicalId":36179,"journal":{"name":"Studia Sportiva","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46111528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}