Efeito da atividade condicionante com diferentes intensidades sobre o desempenho do salto vertical

Autores

DOI:

https://doi.org/10.36453/2318-5104.2020.v18.n3.p87

Palavras-chave:

Força muscular. Fadiga. Contração muscular

Resumo


INTRODUÇÃO: A potencialização pós ativação é o fenômeno do aumento da potência muscular quando precedido de uma atividade condicionante (AC) de força a partir de cargas de alta intensidade.OBJETIVO: Verificar o efeito agudo de três diferentes intensidades de atividade condicionante sobre o desempenho do salto vertical. MÉTODOS: Quinze homens com experiência no treinamento de força visitaram o laboratório em seis ocasiões. As duas primeiras visitas foram destinadas exclusivamente para identificar a carga de 1RM no exercício agachamento. As demais visitas foram realizadas de forma aleatória compreendendo três condições experimentais e um controle. Os procedimentos experimentais foram compostos com a AC realizada em 3 séries de 3 repetições com 20,55 ou 90% de 1RM no exercício agachamento. Tanto antes, como 10 minutos após a realização da AC, os voluntários realizaram 3 saltos verticais. Na visita controle, nenhuma AC foi realizada entre as séries de saltos. Como variável dependente, tanto a maior altura obtida (melhor desempenho) quanto a média de altura das séries de saltos foram consideradas. Após a verificação da normalidade pelo teste de Shapiro-Wilk, uma ANOVA two-way com medidas repetidas foi utilizado para verificar se havia interação ou efeito principal. O nível de significância adotado foi de p<0,05.RESULTADOS: ANOVA two-way com medidas repetidas não observou interação grupo x teste (p=0,938) e nem efeito principal grupo (p=0,486) ou teste (p=0,658) quando se considerou a média dos 3 saltos. O mesmo resultado foi observado quando se avaliou o salto de melhor desempenho (p=0,582; p=0,873; p=0,119).CONCLUSÃO: Os protocolos adotados no presente estudo parecem não interferir no desempenho do salto vertical para indivíduos experientes no treinamento de força, mas não atletas. A individualidade biológica é um importante fator de influência, indicando a necessidade de testar o desempenho individual antes de prescrever este modelo de treino.ABSTRACT. Effect of conditioning contraction with different intensities on vertical jump performance.BACKGROUND: Post-activation potentiation is the phenomenon of increased muscle power when preceded by a high intensity conditioning activity (CA).OBJECTIVE: To verify the acute effect of three different intensities of conditioning activity on the vertical jump performance.METHODS: Fifteen men with strength training experience visited the laboratory on six occasions. The first two visits were intended exclusively to identify the 1RM load in the squat exercise. The other visits were carried out at random, comprising three experimental conditions and one control. The experimental procedures were composed with the CA performed in 3 sets of 3 repetitions with 20,55 or 90% of 1RM in the squat exercise. Before and 10 minutes after performing the CA, the volunteers performed 3 vertical jumps. In the control visit, no CA was performed between the sets of jumps. As a dependent variable, both the highest height obtained (best performance) and the average height of each sets of jumps were considered. After checking the normality by the Shapiro-Wilk test, a two-way ANOVA with repeated measures was used to check if there was an interaction or main effect. The level of significance was p<0.05. RESULTS: Two-way ANOVA with repeated measures did not observe group x test interaction (p=0.938) and neither main group effect (p=0.486) nor test (p=0.658) when considering the average of the 3 jumps. The same result was observed when the best performance jump was evaluated (p=0.582; p=0.873; p=0.119).CONCLUSION: The protocols adopted in the present study do not seem to interfere with the vertical jump performance for individuals experienced in strength training, but not athletes. Biological individuality is an important influencing factor, indicating the need to test individual performance before prescribing this training model.

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Biografia do Autor

Danilo Jamaikon Carvalho, Centro Universitário Presidente Antônio Carlos (UNIPAC)

Graduado no Curso de Educação Física

Heitor Francisco Moreira Barbosa, Centro Universitário Presidente Antônio Carlos (UNIPAC)

Graduado no Curso de Educação Física

Ramon Franco Carvalho, Centro Universitário Presidente Antônio Carlos (UNIPAC) Universidade do Estado do Rio de Janeiro (UERJ)

Professor Adjunto I do Curso de Educação Física da UNIPAC Doutorando no Curso de Pós-graduação Stricto Sensu em Ciência da Exercício e do Esporte (UERJ)

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15-12-2020

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CARVALHO, D. J.; BARBOSA, H. F. M.; CARVALHO, R. F. Efeito da atividade condicionante com diferentes intensidades sobre o desempenho do salto vertical. Caderno de Educação Física e Esporte, Marechal Cândido Rondon, v. 18, n. 3, p. 87–93, 2020. DOI: 10.36453/2318-5104.2020.v18.n3.p87. Disponível em: https://e-revista.unioeste.br/index.php/cadernoedfisica/article/view/24820. Acesso em: 29 nov. 2021.