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Wyszukujesz frazę "Fernandes, Ricardo J." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Representativeness of Offensive Scenarios to Evaluate Perceptual-Cognitive Skills of Water Polo Players
Autorzy:
Casanova, Filipe
Pereira, Ricardo
Canossa, Sofia
Padilha, Maickel
Bagatin, Rafael
Teoldo, Israel
González-Víllora, Sixto
Fernandes, Ricardo J.
Tavares, Fernando
Powiązania:
https://bibliotekanauki.pl/articles/1030822.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
Attacking Game Scenarios
Water Polo
decision-making
reliability
Opis:
The aim of this study was to trial several attacking offensive sequences as representative for further use in research on the perceptual-cognitive skills of water polo players. Elite water polo coaches were presented with separate test film sequences encompassing 80 structured water polo offensive plays. Each clip was approximately 6 s–7 s long with an inter-clip interval of 5 s–10 s, where a red dot was displayed on-screen at the start of the clip to indicate the area of first appearance of the ball. The order of presentation of the video clips was counterbalanced and randomly determined. The criteria were scored on a 5-point Likert-type scale. From the 80 clips presented, only 56 showed high agreement (W = 1; p < 0.05) and internal consistence reliability between the expert observers (α = 0.980; p < 0.05). Furthermore, a very high reproducibility (Z = 0; p = 1) was obtained between viewing sessions. The results obtained determine that 56 offensive scenarios were representative of the water polo game and as such may be useful in evaluating the perceptual-cognitive skills of the players.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2020, 29, 1; 11-19
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated Dynamometric, Kinematic And Electromyographic Characterisation Of A Swimming Track Start Block Phase – A Pilot Study
Autorzy:
Vitor, Manuel
de Jesus, Karla
Mourão, Luís
Tribuzi, Sara
Gonçalves, Pedro
Marques, Mariana
Roesler, Hélio
Vaz, Mário
Vilas-Boas, João Paulo
Fernandes, Ricardo J.
Powiązania:
https://bibliotekanauki.pl/articles/1054777.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
biomechanics
dynamometry
kinematics
electromyography
swimming
Opis:
This study presents a complete biomechanical analysis of the block phase of a swimming modified track start. Kinetic, kinematic and electromyography (EMG) data were collected. The forces produced by the swimmer on the block, the EMG of eight muscles and the kinematics of the centre of mass (CM) were recorded. A national-level swimmer performed three repetitions of a track start in a dynamometric starting block. Temporal instants ‘reaction time’, ‘hands take-off’, ‘rear foot take-off’ and ‘front foot take-off’ were identified. Results show the peak forces (Fmax) produced by the most dynamic limb in each sub-phase delimited by mentioned instants (right hand take-off: Fmaxvertical = 103 N; rear foot take-off: Fmaxantero-posterior = 524 N; front foot take-off: Fmaxvertical = 634 N). The CM revealed a descendent vertical trajectory along the block phase. Mean resultant speed at front foot take-off was 4.092m/s. The muscles with highest values of integral EMG (iEMG) were the tibialis anterior during hands take-off, Biceps Femoris and Gluteus Maximus during rear foot take-off, respectively 41.17%, 52.96% and 36.37% of the maximum isometric voluntary contraction (%MIVC). The study demonstrates an effective characterisation of the block phase in swimming starts with potential to evaluate the swimmers performance in the track start, using different back plate positioning.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2016, 15, 3; 5-14
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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