Impacto da adoção de tempo de recuperação auto selecionado na melhoria de desempenho pós-ativação em homens destreinados e atletas
Carregando...
Data
2023-06-16
Autores
Fontanetti, Gabriel [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual Paulista (Unesp)
Resumo
A melhoria do desempenho pós-ativação (MDPA) é o fenômeno em que são observados incrementos no desempenho de ações musculares rápidas e fortes (e.g., saltos e sprints) após a realização de atividade de pré-ativação (PA) consistindo em exercícios de alta intensidade. Pelo fato de o estado de treinamento afetar a responsividade à MDPA, o objetivo do presente estudo foi investigar se este fator interfere na eficácia da utilização de tempo de recuperação auto selecionado quando se visa a manifestação da MDPA. Participaram do presente estudo 21 adultos saudáveis do sexo masculino que foram alocados em dois grupos: destreinados (DEST) e atletas (ATL), de acordo com seu histórico de treinamento. Ambos os grupos realizaram três sessões experimentais em ordem aleatória. Uma sessão com intervalos fixos (IF), que consistiu na mensuração da altura de salto com contra movimento (SCM) 4 minutos antes e 2, 4, 6, 8 e 10 minutos após a realização de cinco agachamentos com carga de 5-RM; uma sessão controle (CON) que consistiu nas mesmas mensurações, porém sem a realização dos cinco agachamentos; e uma sessão experimental com intervalo auto selecionado (IAS), que consistiu na avaliação da altura de SCM 4 minutos antes da realização dos mesmos cinco agachamentos realizados na sessão IF, além da repetição dessa mensuração após IAS pelos participantes a partir do preenchimento de uma escala de prontidão. Os tempos de IAS foram comparados entre grupos por testes t de Student para medidas não repetidas. O desempenho de SCM (i. e., altura de salto) foi comparado entre grupos, ao longo do tempo, e entre sessões experimentais por análises de variância fatoriais de três caminhos. O nível de significância adotado foi de p < 0,05. Os resultados do presente estudo apresentaram diferença significante para altura de salto (p < 0,05) entre os grupos nas três sessões experimentais nos momentos pré e pós PA. Não houve diferença significante para ambos os grupos durante os momentos pré e pós PA na sessão controle. Para a sessão IF, os dois grupos apresentaram aumento significante para altura de salto (p < 0,05) após a PA. Apenas o grupo dos atletas apresentou aumento significante para altura de salto (p < 0,05) após a PA na sessão IAS, porém não diferente do aumento observado na sessão IF. É possível concluir que, a utilização do IAS na responsividade à MDPA foi eficaz apenas para a população dos atletas.
Post-activation performance enhancement (PAPE) is the phenomenon in which increases in the performance of fast and strong muscle actions (e.g., jumping and sprinting) are observed after performing pre-activation activities (PA) consisting of high-intensity exercise. Since training state affects responsiveness to PAPE, the aim of the present study was to investigate whether this factor interferes with the effectiveness of using self-selected recovery time when targeting PAPE manifestations. Twenty-one healthy male adults participated in this study and were divided into two groups: untrained (UNTR) and athletes (ATHL), according to their training history. Both groups performed three experimental sessions in a randomized order. A fixed interval (FI) session, which consisted of measuring countermovement jump (CMJ) height 4 minutes before, and 2, 4, 6, 8, and 10 minutes after performing five squats with a load of 5-RM; a control session (CON) that consisted of the same measurements, but without performing the five squats; and an experimental session with self-selected interval (SSI), which consisted of evaluating CMJ performance variables 4 minutes before performing the same five squats performed in the FI session, in addition to repeating this measurement after a SSI determined by the participants from filling out a readiness scale. SSI times were compared between groups by Student's t-test for non-repeated measures. CMJ performance (i.e., jump height) was compared between groups, over time, and between experimental sessions by three-way factorial analyzes of variance. The significance level adopted was p < 0.05. The results of the present study showed a significant difference for CMJ height (p < 0.05) between the groups in the three experimental sessions in the pre- and post-PA moments. There was no significant difference in CMJ height for both groups during the pre and post-PA moments in the control session. In the IF session, both groups showed a significant increase in jump height (p < 0.05) after the PA. Only the group containing athletes showed a significant increase in CMJ height (p < 0.05) after the PA in the SSI session. We conclude that the use of SSI was effective only for the athletes only.
Post-activation performance enhancement (PAPE) is the phenomenon in which increases in the performance of fast and strong muscle actions (e.g., jumping and sprinting) are observed after performing pre-activation activities (PA) consisting of high-intensity exercise. Since training state affects responsiveness to PAPE, the aim of the present study was to investigate whether this factor interferes with the effectiveness of using self-selected recovery time when targeting PAPE manifestations. Twenty-one healthy male adults participated in this study and were divided into two groups: untrained (UNTR) and athletes (ATHL), according to their training history. Both groups performed three experimental sessions in a randomized order. A fixed interval (FI) session, which consisted of measuring countermovement jump (CMJ) height 4 minutes before, and 2, 4, 6, 8, and 10 minutes after performing five squats with a load of 5-RM; a control session (CON) that consisted of the same measurements, but without performing the five squats; and an experimental session with self-selected interval (SSI), which consisted of evaluating CMJ performance variables 4 minutes before performing the same five squats performed in the FI session, in addition to repeating this measurement after a SSI determined by the participants from filling out a readiness scale. SSI times were compared between groups by Student's t-test for non-repeated measures. CMJ performance (i.e., jump height) was compared between groups, over time, and between experimental sessions by three-way factorial analyzes of variance. The significance level adopted was p < 0.05. The results of the present study showed a significant difference for CMJ height (p < 0.05) between the groups in the three experimental sessions in the pre- and post-PA moments. There was no significant difference in CMJ height for both groups during the pre and post-PA moments in the control session. In the IF session, both groups showed a significant increase in jump height (p < 0.05) after the PA. Only the group containing athletes showed a significant increase in CMJ height (p < 0.05) after the PA in the SSI session. We conclude that the use of SSI was effective only for the athletes only.
Descrição
Palavras-chave
Melhoria de desempenho pós-ativação, Potencialização pós-ativação, Salto com contra movimento, Potência, Voleibol, Post-activation performance enhancement, Post-activation potentiation, Counter-movement jump, Power, Volleyball