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    Wyświetlanie 1-6 z 6
    Tytuł:
    Biomechanika pływania - aspekty teoretyczne i badania doświadczalne zawodników
    Biomechanics swimming-aspects of theoretical and experimental of players
    Autorzy:
    Woryna, B.
    Jurkojć, J.
    Skubacz, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/98668.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Śląska. Katedra Biomechatroniki
    Tematy:
    biomechanika
    sport
    pływanie
    styl klasyczny
    biomechanics
    swimming
    breaststroke
    Opis:
    W pracy przeprowadzono badania związane z pomiarami biomechanicznymi pływaków. Opracowano metodykę prowadzenia pomiarów oraz przeprowadzono wstępne badania, w ramach których dokonano pomiaru czasów przepłynięcia dystansu 100m stylem klasycznym wraz z międzyczasami oraz pomiarów momentów sił mięśniowych w warunkach izokinetycznych na stanowisku Biodex. Wyniki porównano i określono zależności pomiędzy wynikami osiągniętymi na basenie i podczas pomiarów w laboratorium.
    In these thesis did a review based on different literature sources about biomechanical research among sportsmen. After that an author did a measurement of muscle torques on a Biodex chair. The author summarized the results which the swimmers got on a 100 meters distance with the results that they got by using biomechanical devices. The comparison showed that the swimmers which got the better results have less muscle fatigue and achieve greater muscle torques for the bending and straightening of the knee.
    Źródło:
    Aktualne Problemy Biomechaniki; 2014, 8; 169-172
    1898-763X
    Pojawia się w:
    Aktualne Problemy Biomechaniki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anthropometric predispositions for swimming from the perspective of biomechanics
    Autorzy:
    Rejman, M.
    Tyc, Ł.
    Kociuba, M.
    Bornikowska, A.
    Rudnik, D.
    Kozieł, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/306959.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    pływanie
    profil antropometryczny
    biomechanika
    swimming
    anthropometric profile
    biomechanics
    Opis:
    Early identification of anthropological potential in swimmers is considered important to the recruitment and selection of children and adolescents to perform extensive and strenuous training. The aim of the research was a comparative analysis of the anthropometric parameters and indicators of adult, elite swimmers with people who had never trained for swimming. It was assumed that the specific characteristics of the swimmers’ somatic composition referred to the laws of swimming biomechanics. Methods: Anthropometric measurements were taken in a group of elite male swimmers (N = 28), aged 17–24. The same set of measurements was taken in a homogeneous control group of students of physical education. An anthropometric profile significantly differentiating swimmers from the control group was constructed. Next, a linear forward stepwise discriminant analysis was conducted to investigate which indices can be used to distinguish the two groups. Results: It seems significant that a specific somatic composition trait of swimmers in the form of a relatively long shank was observed, which had not been observed in earlier studies. Additionally, indices of relatively slim hand dimension, and indices describing a “reversed triangle” shape of trunk, were the most powerful discrimination variables between the two examined groups. Conclusion: The results obtained cannot be generalised to the entire population of swimmers, however referring them to the laws of biomechanics of swimming allows for the continuation of research into identifying the prognostic traits desirable for success among young swimmers.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2018, 20, 4; 151-159
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gender effect on underwater undulatory swimming technique of young competitive swimmers
    Autorzy:
    Wądrzyk, Łukasz
    Staszkiewicz, Robert
    Kryst, Łukasz
    Żegleń, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/307330.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    biomechanika
    pływanie
    różnice płci
    nurkowanie
    biomechanics
    swimming
    gender differences
    underwater undulatory swimming
    Opis:
    The study aim was determining gender-related differences of underwater undulatory swimming (UUS) kinematic indicators and their impact on UUS velocity. Methods: The study included 18 girls (F: age 16.71 ± 0.64 years, FINA points 551 ± 68) and 23 boys (M: age 16.79 ± 0.57 years, FINA points 533 ± 66) training swimming. After marking characteristic anatomical points, subjects performed approximately 7 meters of UUS. A filming device placed behind the underwater window registered the trial. Recordings were analysed using the SkillSpector programme. Results: Boys swam faster (F: 1.24 m/s, M: 1.35 m/s), overcame a greater distance during one cycle (F: 0.67 m, M: 0.74 m), performed movements with higher toes amplitude (F: 0.58 m, M: 0.63 m), obtained higher amplitude and frequency product (F: 1.05, M: 1.15) and smaller ankle joint range of motion (F: 64°, M: 57°). In both groups, relationships between velocity and: maximal ankle joint extension, distance covered during one cycle and backward toes shift during downward movement were found. The results were statistically significant ( p < 0.05). Conclusions: Girls and boys differed in kinematic indicator level, but UUS velocity depends on identical kinematic variables, meaning UUS technical training can be performed without gender-division.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2019, 21, 4; 3-11
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Coordination and propulsion and non-propulsion phases in 100 meters breaststroke swimming
    Autorzy:
    Strzała, M.
    Krężąłek, P.
    Kucia-Czyszczoń, K.
    Ostrowski, A.
    Stanula, A.
    Tyka, A. K.
    Sagalara, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/307098.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    sport
    pływanie
    kinematyka
    klatka piersiowa
    biomechanika
    water sport
    breaststroke
    body length
    kinematic indices
    Opis:
    Purpose: The main purpose of this study to analyze the coordination, propulsion and non-propulsion phases in the 100 meters breaststroke race. Methods: Twenty-seven male swimmers (15.7±1.98 years old) with the total body length (TBL) of 247.0±10.60 [cm] performed an all-out 100m breaststroke bout. The bouts were recorded with an underwater camera installed on a portable trolley. The swimming kinematic parameters, stroke rate (SR) and stroke length (SL), as well as the coordination indices based on propulsive or non-propulsive movement phases of the arms and legs were distinguished. Results: Swimming speed (V 100surface breast ) was associated with SL (R=0.41, p<0.05) and with TBL tending towards statistical significance (R=0.36, p<0.07), all relationships between the selected variables in the study were measured using partial correlations with controlled age. SL interplayed negatively with the limbs propulsive phase Overlap indicator (R=-0.46, p<0.05), but has no significant relationship to the non-propulsion Glide indicator. Conclusions: The propulsion in-sweep (AP3) phase of arms and their non-propulsion partial air recovery (ARair) phase interplayed with V 100surface breast (R=0.51, p<0.05 and 0.48 p<0.05) respectively, displaying the importance of proper execution of this phase (AP3) and in reducing the resistance recovery phases in consecutive ones.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2014, 16, 4; 83-89
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrodynamic body shape analysis and their impact on swimming performance
    Autorzy:
    Li, T-Z.
    Zhan, J.-M.
    Powiązania:
    https://bibliotekanauki.pl/articles/306315.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    pływanie
    biomechanika
    metoda VOF
    symulacja numeryczna
    swimming
    biomechanics
    swimmer's body shape
    VOF method
    numerical simulation
    Opis:
    This study presents the hydrodynamic characteristics of different adult male swimmer's body shape using computational fluid dynamics method. This simulation strategy is carried out by CFD fluent code with solving the 3D incompressible Navier–Stokes equations using the RNG k-ε turbulence closure. The water free surface is captured by the volume of fluid (VOF) method. A set of full body models, which is based on the anthropometrical characteristics of the most common male swimmers, is created by Computer Aided Industrial Design (CAID) software, Rhinoceros. The analysis of CFD results revealed that swimmer’s body shape has a noticeable effect on the hydrodynamics performances. This explains why male swimmer with an inverted triangle body shape has good hydrodynamic characteristics for competitive swimming.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2015, 17, 4; 3-11
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Body composition and specific and general strength indices as predictors of 100-m front crawl performance
    Autorzy:
    Strzała, Marek
    Stanula, Arkadiusz
    Krężałek, Piotr
    Sadowski, Wojciech
    Wilk, Robert
    Pałka, Tomasz
    Sokołowski, Kamil
    Radecki-Pawlik, Artur
    Powiązania:
    https://bibliotekanauki.pl/articles/27324098.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    swimming
    strength
    power
    movement velocity
    biomechanics
    body composition
    pływanie
    wytrzymałość
    moc
    prędkość ruchu
    biomechanika
    skład ciała
    Opis:
    The purpose of this research was to examine the impact of body composition on the anaerobic ability to generate strength and power produced separately by upper and lower limbs during dry-land and in-water (propulsion force) tests. Further examination included the influence of all gathered anaerobic strength indices on the results of 100-m front crawl race. Methods: The study involved 26 male swimmers (age: 19.8 ± 2.48 years). Fat-free mass, total body water and muscle mass of arms, legs, and trunk were measured. Dry-land average work, maximal power generated in 40-second arm-cranking test, and work generated in 20 countermovement jumps were evaluated. The forces generated separately by arms and legs were assessed during 40-second tethered swimming. All indices of body composition were found strongly correlated with indices of average work and maximal power generated by arms and legs in dryland tests. Results: Muscle mass of arms and trunk moderately and strongly (r = 0.44–0.64) influenced the force generated by arms in tethered swimming. There was no significance in the relationship of leg muscle mass and force generated by legs in tethered swimming. Significant relationships were observed between the results of the 100-m front crawl and the muscle mass of the arms, trunk, legs, as well as the average work and maximal power in the arm-cranking test (r: 0.39–0.54). The average impulse of arm force and maximal leg force in tethered swimming moderately and significantly correlated with 100-m swimming results. Conclusions: The study concludes the relevance of developing muscle mass balanced to the body size, which is involved in propulsion force production in sprint front crawl swimming.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2020, 22, 4; 51--60
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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