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    Wyświetlanie 1-7 z 7
    Tytuł:
    Measurement of maximal isometric torque and muscle fatigue index of the knee muscles in male athletes
    Autorzy:
    Danek, Janusz
    Wojtasik, Wojciech
    Szulc, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/306497.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    sportowiec
    wskaźnik zmęczenia
    mięśnie
    staw kolanowy
    male athletes
    maximal isometric torque
    fatigue index
    knee joint
    muscles
    Opis:
    The aim of the paper was to analyse variables related to the force and fatigue of knee muscles in the right and left lower limbs among 17 male athletes. Methods: For both muscle groups, maximal isometric torque (Fmax) was determined with the use of Biodex System 4 Pro and the values of muscle fatigue index (FATI1–3) were calculated. Results: A significant difference was observed between the groups of short- and long-distance runners in the values of all fatigue indices of knee joint extensor muscles in the right limb. In turn, between the groups of athletes who had trained for 2–4 years or for 4.5–7 years and the group who had trained for 7.5–13 years, significant differences were observed in the values of all fatigue indices of knee joint flexor muscles in the right limb. The group training for 3–12 hours per week and the group training for 12.5–18.0 hours per week in the sports club differed significantly in the value of the maximal isometric torque of knee joint flexor muscles in the right limb and in the values of some fatigue indices (FAT1, FAT3) for knee joint flexor muscles in the right limb. The study reported numerous positive correlations between the assumed characteristics and the investigated variables of knee joint extensor and flexor muscles in the right and left lower limbs. Conclusions: Athletes present certain changes in variable values and positive correlations between some characteristics and investigated variables of selected knee muscles.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2019, 21, 3; 31-37
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of anaerobic endurance based on selected biochemical parameters in 400 m/400 m hurdles male athletes
    Autorzy:
    Stolecka-Warzecha, Anna
    Kaczmarczyk, Tomasz
    Żebrowska, Aleksandra
    Powiązania:
    https://bibliotekanauki.pl/articles/1054987.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    anaerobic endurance
    athletics
    exercise physiology
    Opis:
    The ongoing development of the modern society may also be easily noticed in sports. Currently, to be able to compete at the highest level at major sporting events, it is essential to conduct scientific research to estimate the individual potential and skill level of an athlete. The aim of this study was to assess the anaerobic endurance in men competing in the running events of 400 m/400 m hurdles based on the estimation of maximum power, as well as selected biochemical and physiological parameters measured in a cardiac stress test at a supramaximal intensity. Seven athletes participated in the study and were subjected to a modified version of the Wingate test (Bar-Or, Dotan, Inbar, 1997; Bar-Or, Inbar, Skinder, 1996) which involved performing three runs of a 12‑second endurance test on a cycloergometer at short intervals. This modification of the test allowed a more precise observation and a better understanding of the physiological and biochemical changes that decrease the efficiency as a result of repeated physical effort, which may significantly affect the assessment of the preparation of an athlete, and thus the assessment of the training process. The most significant changes in the course of the conducted study were observed in the values of the following biochemical parameters: glucose levels, acid–base balance of the blood and lactate levels.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2016, 14, 2; 101 - 110
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Framing the Winter Olympic Games: A Content Analysis of Polish Newspapers Coverage of Female and Male Athletes
    Autorzy:
    Jakubowska, Honorata
    Powiązania:
    https://bibliotekanauki.pl/articles/1790817.pdf
    Data publikacji:
    2017-03-24
    Wydawca:
    Polskie Towarzystwo Socjologiczne
    Tematy:
    Winter Olympic Games
    press coverage
    gender
    nation
    media framing
    Opis:
    The aim of this paper is to analyse the media coverage provided by two Polish daily newspapers (Gazeta Wyborcza and Przegląd Sportowy) during the 2014 Sochi Winter Olympic Games according to the athletes’ gender. The paper makes reference to agenda setting theory and media framing and it is based on an analysis of photographs of the games on the front pages and the sporting articles’ main themes. The analysis reveals that the press focused mainly on the Polish medal winners and did not reveal significant differences between women’s and men’s press coverage. Results show that the discourse of nationalism overrode the discourse of gender, the newspapers’ coverage being mainly based on the success of the Polish athletes, regardless of their gender.
    Źródło:
    Polish Sociological Review; 2017, 197, 1; 67-82
    1231-1413
    2657-4276
    Pojawia się w:
    Polish Sociological Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Test-Retest Reliability and Validity of Three Different Agility Tests for Various Team Sports in Young Male Athletes
    Autorzy:
    Kutlu, Mehmet
    Doğan, Özgür
    Powiązania:
    https://bibliotekanauki.pl/articles/1030539.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    agility
    basketball
    soccer
    team sports
    water polo
    Opis:
    The purpose of this study is to examine the reproducibility of three different agility tests in basketball, soccer and water polo team sports. To determine the reliability 44 young male athletes (Basketball age 16.5 ±0.6, height 177.9 ±7.7 weight 70.0 ±7.1; Soccer age 16.3 ±0.5, height 169.2 ±5.0, weight 71.2 ±7.9; Water Polo age 17.1 ±0.7, height 181.3 ±6.7, weight 76.7 ±7.2) performed 3 different agility tests (Zig-Zag, Illinois and AS) on two occasions 1 wk. apart for test-retest. Sprint time scores were analyzed for each test. To determine the reliability Paired Sample T-test and Pearson Correlation Statistics were computed. Scores of teams were compared with ANOVA statistics to determine the difference. Test results showed that there was no significant difference between the two occasions for all agility test on subjects and teams (p > 0.01). There was higher correlation between test-retest values of subjects (r = 0.90–0.97). Three different agility tests were found valid in determining agility with significant moderate level correlation. (r = 0.36–0.44; p < 0.01). Differences among sport branches were found significant for agility scores (p < 0.05). All three agility tests are reliable and valid for team sport athletes. Soccer players had better scores than other branches in soccer specific test (AS). This study showed that sport specific agility tests are more useful than general agility tests.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2018, 22, 2; 33-38
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ podaży makroskładników odżywczych i wartości energetycznej diety na stężenie testosteronu u mężczyzn uprawiających sport
    The impact of energy value of the diet and the supply of macronutrients on serum testosterone in male athletes
    Autorzy:
    Wrzosek, Michał
    Włodarek, Dariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2129000.pdf
    Data publikacji:
    2018-03-29
    Wydawca:
    Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
    Tematy:
    żywienie
    testosteron
    sport
    nutrition
    testosterone
    Opis:
    Androgeniczne i anaboliczne funkcje testosteronu czynią go najważniejszym hormonem męskim. Jego stężenie może podlegać wpływom podaży makroskładników diety oraz jej wartości energetycznej. Celem pracy był przegląd najnowszych badań nad stężeniem testosteronu wśród sportowców płci męskiej w kontekście wpływu diety. Dowiedziono, iż zarówno wartość energetyczna, jak i ilość białka, tłuszczów i węglowodanów nie pozostają bez wpływu na stężenie testosteronu. Niedobory energii i poszczególnych makroskładników obniżają stężenie tego hormonu w organizmie sportowca, wpływając tym samym na jego możliwości treningowe.
    Androgenic and anabolic functions of testosterone make it the most important male hormone. Its concentration can be influenced by the intake of dietary macronutrients and its calorific value. The aim of this study was to review available research on testosterone levels among male athletes within the context of their effects of diet. It has been proved that both the calorific value and the amount of protein, fats and carbohydrates are not without effect on the hormone. Energy shortages and individual macronutrients reduce testosterone levels in an athlete’s body, thus affecting its training possibilities.
    Źródło:
    Polish Journal of Sports Medicine; 2018, 34(1); 9-16
    1232-406X
    2084-431X
    Pojawia się w:
    Polish Journal of Sports Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of wrestling tournament on immune and endocrine markers in blood and saliva of male and female athletes
    Autorzy:
    Trochimiak, Teresa
    Hübner-Woźniak1, Elżbieta
    Powiązania:
    https://bibliotekanauki.pl/articles/1054825.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    blood
    endocrine markers
    immune markers
    saliva
    tournament
    wrestlers
    Opis:
    The aim of the present study was to determine the effect of one-day wrestling tournament on magnitude and direction of changes in selected immunological and endocrine status indices. The participants of the study were male (n = 12) and female (n = 13) wrestlers. The earlobe blood samples and unstimulated saliva were collected at three time points: in the morning before the competition (1), immediately after the last match (2) and in the next morning (3). Total protein, IgA and cortisol concentration and α-amylase activity in saliva, as well as concentration of cortisol and interleukin-6 in serum were measured. Significantly lower ratio of sIgA/protein and significantly higher levels of salivary and serum cortisol, interleukin-6, and α-amylase activity were observed at the second time point compared with the first and the third in both groups of athletes. Regardless of the examined time point, concentrations of serum and saliva markers were similar in female and male wrestlers. However, a tendency to lower sAA activity on the next morning after the tournament compared to basal activity of this enzyme was seen in both examined groups. In general, the changes of examined markers were short-lived, except for α-amylase activity, showing that tournament-wrestling matches had no sustained negative effects on endocrine and immunological body systems.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2014, 7, 3; 81-89
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Three component model of meaningfulness of life of male and female university students regarding their sport activity
    Autorzy:
    Smela, Pavel
    Pacesova, Petra
    Kracek, Stanislav
    Powiązania:
    https://bibliotekanauki.pl/articles/1922143.pdf
    Data publikacji:
    2019-09-04
    Wydawca:
    PPHU Projack Jacek Wąsik
    Tematy:
    sources of meaning in life
    athletes and non-athletes
    flow
    well-being
    Opis:
    The aim of the study is to expand knowledge in meaningfulness of life of athlete and non-athlete college students at universities in Bratislava and identify differences in its dimensions: affective, motivation and cognitive. The research sample comprised of 198 undergraduates (males: n=90, 20.68±1.56 years of age; female: n=108, 20.74±1.16 years of age). The respondents were divided into 2 groups according to their sports activities: college students who do not take active part in any sports activities (non-athlete respondents), and college students who are engaged regularly (at least twice a week) in sport activities. The questionnaire The Scale of Life Meaningfulness was used as a research tool. The results revealed significant differences in total score of meaningfulness of life by male (U=383.0, p=0.001, r=0.52) and also female (U=687.5, p=0.001, r=0.45). According to three-component model we have found out the significant differences between athlete and non-athlete college students in affective dimension (male: p=0.025, female: p=0.007) and motivation dimension (male: p=0.001, female: p=0.001). There were no significant differences in cognitive dimension (male: p=0.062, female: p=0.127). According to our results which testified the fact that sport activity is one of the determinants for increased meaningfulness of life of undergraduates.
    Źródło:
    Physical Activity Review; 2019, 7; 175-181
    2300-5076
    Pojawia się w:
    Physical Activity Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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