Efeito da variação do número de jogadores na frequência cardíaca, potência muscular e percepção subjectiva de esforço no treino de futsal
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2010
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O objectivo deste estudo foi analisar o efeito da variação do número de jogadores nas respostas fisiológicas, designadamente na frequência cardíaca, no impacto muscular e na percepção subjectiva do esforço de formas jogadas de Futsal. A amostra do estudo foi constituída por 10 jogadores de Futsal do escalão sénior (idade 22,7±7,15; altura 173,8±3,73; peso 68,10±5,93; FCmáx 201,7±13,9 bpm). Em cada forma jogada, o protocolo consistiu em 4 séries de 4 minutos separados por 2 minutos de recuperação activa, contabilizando na sua totalidade 22 minutos. A percepção subjectiva de esforço foi registada em cada período de recuperação activa. Os testes de squat jump e countermovement jump procuraram analisar o tempo de voo e a altura de salto, antes e depois de cada jogo. Para a determinação da FCmáx, os jogadores foram sujeitos ao teste yo-yo intermittent recovery test. O tempo gasto na frequência cardíaca foi determinado em 4 zonas de intensidade: Zona 1 (<75% FCmáx), Zona 2 (75-84% FCmáx), Zona 3 (85-89% FCmáx) e Zona 4 (>90% FCmáx). Globalmente, os resultados da frequência cardíaca e da percepção subjectiva do esforço, permitem deduzir que quanto menor o número de jogadores envolvidos nas formas jogadas, maiores os valores médios. De registar que o 2x1 foi o jogo no qual os jogadores se mantiveram mais tempo na zona 4. Quanto à potência muscular, a forma jogada 4x4, foi aquela onde se verificaram diferenças significativas, quer no tempo de voo quer ou na altura dos saltos.
The purpose of this study was to analyze the effect of varying the number of players in physiological responses, including heart rate, the subjective perception of muscular effort and the impact of different small-sidded games in Futsal. The study sample consisted of 10 Futsal players of senior level (age 22.7 ± 7.15, height 173.8 ± 3.73, weight 68.10 ± 5.93; HRmax 201.7 ± 13.9 bpm). In each game, the protocol consisted of four sets of 4 minutes separated by 2 minutes of active recovery, accounting in its entirety 22 minutes. The perceived exertion was performed during periods of active recovery. The tests of squat jump and countermovement jump tried to analyze the flight time and jump height before and after each game. To determine the HRmax, the players were subject to testing yo-yo intermittent recovery test. The time spent in heart rate was determined in four intensity zones: Zone 1 (<75% HRmax), Zone 2 (75-84% HRmax), Zone 3 (85-89% HRmax) and Zone 4 (> 90% HRmax). Overall, the results of heart rate and subjective perception of effort, can be derived that the smaller number of larger players in the average values. To note that the 2x1 was the game in which players remained more time in Zone 4. As for muscle power it was in the 4x4 game, where significant differences were found either in flight time the height of jumps.
The purpose of this study was to analyze the effect of varying the number of players in physiological responses, including heart rate, the subjective perception of muscular effort and the impact of different small-sidded games in Futsal. The study sample consisted of 10 Futsal players of senior level (age 22.7 ± 7.15, height 173.8 ± 3.73, weight 68.10 ± 5.93; HRmax 201.7 ± 13.9 bpm). In each game, the protocol consisted of four sets of 4 minutes separated by 2 minutes of active recovery, accounting in its entirety 22 minutes. The perceived exertion was performed during periods of active recovery. The tests of squat jump and countermovement jump tried to analyze the flight time and jump height before and after each game. To determine the HRmax, the players were subject to testing yo-yo intermittent recovery test. The time spent in heart rate was determined in four intensity zones: Zone 1 (<75% HRmax), Zone 2 (75-84% HRmax), Zone 3 (85-89% HRmax) and Zone 4 (> 90% HRmax). Overall, the results of heart rate and subjective perception of effort, can be derived that the smaller number of larger players in the average values. To note that the 2x1 was the game in which players remained more time in Zone 4. As for muscle power it was in the 4x4 game, where significant differences were found either in flight time the height of jumps.
Descrição
Dissertação de Mestrado em Ciências do Desporto com Especialização em Jogos Desportivos Colectivos
Palavras-chave
Futsal , Jogo reduzido , Frequência cardíaca , Percepção subjectiva do esforço , Squat jump , Countermovement jump