Elastic explosive strength alterations in young soccer players in preparatory stage

The explosive strength has been pointed as one of physical capacities present in decisive moments in soccer game. So, the aim of this study was to verify possible alterations in elastic explosive strength performance in ten young soccer players (16.54 ± 0.54 years; 73.10 ± 8.36 kg; 178.10 ± 7.67 cm). During the match in preparatory stage to championship, the elastic explosive strength was evaluated by vertical jump with countermovement aid from arms (CMJa), using contact plataform Jump Test® in 3 moments: before, in the interval and after game. BioEstat 5.0 software produced information in descriptive plan (mean and standard deviation) and in the inferential, Anova one-way for differences between moments and post hoc de Tukey’s for multiple comparisons (p\u3c0.01). The main results indicate values 47.98 ± 4.61 cm before game, 46.46 ± 3.20 cm in the interval and 44.99 ± 3.71 cm after the game. In relation to collected data before game, it was observed a performance fall about 3.3% in elastic explosive strength in the interval and 6.6% after game (p\u3c0.01). These results shoed to be related with competitive actions sequence performed by soccer players during the match. From above, the used methodology seems to properly identify alterations that occur during matches, as an important indicator to monitoring and controlling training

General modeling of vertical jump height with countermovement aids from arms (CMJa) and Squat Jump (SJ) techniques for young soccer players

In the training of youngest soccer players, the knowledge of components of the explosive strength power as the contractile, elastic series and parallel series is fundamental in the sports preparation. Consequently, it is important to seek general models used as parameter for athletes, whether with morphofunctional characteristics, of sports preparation aspects or structure of competitive activity. So, this study aimed to seek an general model of vertical jump height with countermovement aids from arms (CMJa) and Squat Jump (SJ) techniques for young soccer players. Participants were 164 young soccer players (17.42±1.06 years) of juvenile and junior championship of Soccer Paulista Federation in 2008. They executed the vertical jump with countermovement aids from arms (CMJa) and Squat Jump (SJ) techniques. It was used software and contact plataform Jump Test® for the calculation of the height of the jump CMJa (elastic component in series) and SJ (contractile component). It is worthy to know that for SJ the number of athletes was 88. Then the data was kept in computational bank and it was produced descriptive information (mean and standard deviation). The main results showed values of 32.82±4.02 cm for CMJa and 42.97±4.53 cm for SJ. Finally, the general model presented can serve as a parameter for the juvenile and junior categories in soccer

Competitive modeling of heart rate in Brazilian juniors soccer players

The heart rate (HR) has been used as indicator of competitive actions intensity in soccer players. The aim of this study was to analyze the competitive modeling of HR in eight brazilian juniors soccer players (18.84 ± 1.04 years; 71.19 ± 8.60Kg; 177.25 ± 6.04 cm) during a preparatory stage game. All were evaluated with Polar® heart rate monitor Team System model in five moments: warm-up (16min and 40s), recovery (8min and 15s), 1st half (48min), interval (7min and 45s), 2nd half (45min and 30s), and the heartbeats saved every 5 seconds. After collection, the data were kept in computational bank and it was produced tabular informations. The results are shown in the figure 1, through frequency percentage. The main results indicate that the competitive model of HR for juniors soccer players is characterized by intermittent actions, intersperse periods of low, average and high intensity. The predominance of actions in 1st half and 2nd half occur in HR of 171-180 bpm, in warm-up is 131-140 bpm, in recovery and interval are 111-120 bpm. Therefore, the knowledge of competitive activities of soccer players by HR responses allows a better elaboration of training models according to competitive demand

Training program influences the relation between functional and neuromuscular performance indicators during the season in young soccer players

AbstractThe aim of this study was to investigate the influence of a training program on the relation between performance indicators of different physical capacities intra and inter functional and neuromuscular systems at different times of the season. Subjects were 16 young soccer players with an average age of 16.5±0.4 years. The study was carried out for 17 weeks, including three assessment moments (T1: 1st, T2: 10th and T3: 17th week). High correlation was found between indicators of neuromuscular predominance (30 meters sprint test (30m) and Maximum Sprint (MaxSprint) (RAST) in T1) (r=0.93, p≤0.001), functional (Sprints Average (MidSprint) and Minimal Sprint (MinSprint) (RAST) in T1, T2 and T3; MinSprint and Fatigue Index (FI) (RAST) in T3) (r=0.95, 0.85, 0.91; −0.86, p≤0.001, respectively) and between functional and neuromuscular indicators (30m and MidSprint in T1; 30m and MinSprint in T1; MaxSprint and MidSprint in T1 and T2 and MaxSprint and MinSprint in T1) (r=0.95, 0.93, 0.96, 0.84, 0.87, p≤0.001, respectively). The training contents had influence on the correlation of performance indicators at different times of the season

Caracterização dos meios e métodos de influência prática no treinamento em futebolistas profissionais

O presente trabalho tem como objetivo apontar as características dos meios e métodos de influência prática e, posteriormente, sugerir um modelo de organização e estruturação na etapa preparatória, na modalidade futebol profissional. Os instrumentos utilizados na pesquisa foram artigos publicados em periódicos indexados no Qualis CAPES, dissertações, bem como livros registrados no International Standard Book Number (ISSN). A partir das informações encontradas, destaca-se que o meio de treinamento representa o exercício, e o método o modo de sua utilização; os métodos de influência prática têm sido tratados com maior importância no âmbito desportivo. A discussão direciona no sentido de que os diferentes meios e métodos constituem os elementos práticos da preparação desportiva, intervindo diretamente na organização do treinamento, bem como no entendimento de que quanto maior é o grau de correspondência entre os modelos utilizados (exercícios de treinamento) e a competição, maiores e mais eficazes resultarão seus efeitos. Por fim, aponta-se que no contexto atual da modalidade, torna-se necessário evidenciar que a forma de organização deve buscar o desempenho dos jogadores em curto período de tempo, e a preparação de futebolistas profissionais indica a necessidade de pesquisas envolvendo propostas de sistematização de treinamento

Modelo competitivo da distância percorrida por futebolistas na Uefa Euro 2008

O objetivo do presente estudo centra-se em conhecer o modelo competitivo da distância percorrida por futebolistas na Uefa Euro 2008, mediante as posições de jogo, os tempos e a distância total percorrida durante as partidas. Foram analisadas todas as partidas das 16 seleções, totalizando 31 jogos, dos quais participaram 460 futebolistas. Posteriormente, produziram-se informações descritivas e inferenciais. Os principais resultados apontam que: i) futebolistas da elite europeia percorreram 10232 ± 852m; ii) meio-campistas (10894 ± 648m) percorreram maior distância, seguidos pelos laterais (10274±694m), atacantes (10108 ± 624m), zagueiros (9498 ± 592m) e goleiros (4198 ± 610m); iii) a distância média percorrida no 1º tempo (4907 ± 201m) das partidas foi maior do que a do 2º tempo (4890 ± 238m)

Training Program Influences The Relation Between Functional And Neuromuscular Performance Indicators During The Season In Young Soccer Players

O objetivo do presente estudo foi verificar a influência de um programa de treinamento na relação entre indicadores de desempenho de diferentes capacidades físicas intra e inter sistema funcional e neuromuscular em diferentes momentos da temporada. Participaram do estudo 16 jovens futebolistas com idade média de 16,5 ± 0,4 anos. O estudo decorreu por 17 semanas, incluindo três momentos de avaliação (T1:1ª; T2:10ª e T3:17ª semana). Foram encontradas alta correlação entre indicadores de predominância neuromuscular (Sprints em 30m (30m) e Sprint Máximo (MaxSprint) (RAST) em T1) (r = 0,93; P ? 0,001), funcional (Média de Sprints (MidSprint) e Sprint Mínimo (MinSprint) (RAST) em T1, T2 e T3; MinSprint e Índice de Fadiga (FI) (RAST) em T3) (r = 0,95; 0,85; 0,91; -0,86; P ? 0,001, respectivamente) e entre funcional e neuromuscular (30 m e MidSprint em T1; 30 m e MinSprint em T1; MaxSprint e MidSprint em T1 e T2 e MaxSprint e MinSprint em T1) (r = 0,95; 0,93; 0,96; 0,84; 0,87; P ? 0,001, respectivamente). Os conteúdos de treinamento exerceram influência na correlação dos indicadores de rendimento nos diferentes momentos da temporada3919810

Training program influences the relation between functional and neuromuscular performance indicators during the season in young soccer players

Abstract The aim of this study was to investigate the influence of a training program on the relation between performance indicators of different physical capacities intra and inter functional and neuromuscular systems at different times of the season. Subjects were 16 young soccer players with an average age of 16.5 ± 0.4 years. The study was carried out for 17 weeks, including three assessment moments (T1: 1st, T2: 10th and T3: 17th week). High correlation was found between indicators of neuromuscular predominance (30 meters sprint test (30 m) and Maximum Sprint (MaxSprint) (RAST) in T1) (r = 0.93, p ≤ 0.001), functional (Sprints Average (MidSprint) and Minimal Sprint (MinSprint) (RAST) in T1, T2 and T3; MinSprint and Fatigue Index (FI) (RAST) in T3) (r = 0.95, 0.85, 0.91; -0.86, p ≤ 0.001, respectively) and between functional and neuromuscular indicators (30 m and MidSprint in T1; 30 m and MinSprint in T1; MaxSprint and MidSprint in T1 and T2 and MaxSprint and MinSprint in T1) (r = 0.95, 0.93, 0.96, 0.84, 0.87, p ≤ 0.001, respectively). The training contents had influence on the correlation of performance indicators at different times of the season