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Respostas agudas do treinamento resistido nas variáveis hemodinâmicas em universitárias normotensas
Authors
Carlos Alberto da Silva
Yuri Alberto Freire de Assis
Abraham Lincoln de Paula Rodrigues
Publication date
9 September 2019
Publisher
IBPEFEX
Abstract
The study aimed to analyze the acute responses of resistance training in hemodynamic variables in normotensive university students. Seven normotensive university students participated, with a mean of 21.4 ± 2.2 years. The participants performed load tests on the leg-press apparatus 45º for the accomplishment of 10RM, for protocol B10, and 20 RM, for protocol B20. The B10 protocol (moderate intensity) was performed with 3 sets of 10 replicates, and B20 (light intensity), with 3 sets of 20 replicates. In all protocols, 80% of the load found in the test was used, with a 2-minute interval between sets. After the protocols were completed, the participants remained for 60 minutes at rest to check for post-exercise hypotension (BPH), with blood pressure (BP) measured at 10-minute intervals. In the 2 protocols, there was an increase in BP in successive series, but B20 presented a higher peak systolic BP (184.2 ± 28.0 vs.177.1 ± 24.8), but with no significant difference. B20 resulted in a significantly higher response in heart rate (166.5 ± 25.5 vs. 142.2 ± 30.5) and double-product (30,660 ± 6,364 vs. 25,052 ± 5,789). The two protocols presented PEH at 30 minutes, but B20 presented a significant and more pronounced result in systolic BP hypotension. Therefore, it was concluded that, for hemodynamic responses during exercise, the protocol with lower intensity resulted in higher SBP, HR and DP peaks. Regarding the post-exercise hypotensive effect, it was concluded that the protocol with lower intensity resulted in a greater effect of HPE.O estudo objetivou analisar as respostas agudas do treinamento resistido nas variáveis hemodinâmicas em universitárias normotensas. Participaram da pesquisa 7 universitárias normotensas, com média de 21,4 ± 2,2 anos de idade. As participantes realizaram testes de carga no aparelho leg-press 45º para a realização de 10RM, para o protocolo B10, e 20 RM, para o protocolo B20. O protocolo B10 (intensidade moderada) foi realizado com 3 séries de 10 repetições, e B20 (intensidade leve), com 3 séries de 20 repetições. Em todos os protocolos utilizou-se 80% da carga encontrada no teste, com intervalo de 2 minutos entre as séries. Após a realização dos protocolos, as participantes permaneceram por 60 minutos em repouso para a verificação da hipotensão pós-exercÃcio (HPE), com pressão arterial (PA) aferida em intervalos de 10 minutos. Nos 2 protocolos houve elevação da PA nas sucessivas séries, porém B20 apresentou um maior pico de PA sistólica (184,2 ± 28,0 vs.177,1 ± 24,8), mas sem diferença significativa. B20 inferiu resposta significativamente maior na frequência cardÃaca (166,5 ± 25,5 vs. 142,2 ± 30,5) e no duplo-produto (30.660 ± 6.364 vs. 25.052 ± 5.789). Os dois protocolos apresentaram HPE a partir dos 30 minutos, porém, B20 apresentou resultado significativo e mais acentuado na hipotensão da PA sistólica. Portanto, conclui-se que, quanto as respostas hemodinâmicas durante a realização do exercÃcio, o protocolo com menor intensidade inferiu maiores picos de PAS, FC e DP. Quanto ao efeito hipotensor pós-exercÃcio, conclui-se que o protocolo com menor intensidade resultou em maior efeito de HPE
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RBNE - Revista Brasileira de Nutrição Esportiva
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Last time updated on 18/12/2019