Respostas Fisiológicas Agudas no Exercício Resistido com Diferentes Intervalos de Recuperação entre as Séries
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2008
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Este estudo teve como objetivo comparar as respostas fisiológicas agudas dos exercícios resistidos (ER), realizados com diferentes tempos de recuperação entre as séries. Métodos: Participaram do estudo 12 jovens (24,6 3,7 anos de idade), sem experiência no exercício resistido (ER). No processo de pesquisa, as respostas fisiológicas agudas da freqüência cardíaca (FC), pressão arterial sistólica (PAS), duplo produto (DP), lactato sanguíneo (LA) e percepção subjetiva do esforço (PSE) foram mensuradas nos exercícios leg pres 45° e supino horizontal. Ambos os exercícios foram realizados com um e dois minutos de recuperação entre as séries. Os avaliados foram submetidos a três séries de dez repetições a 60% de 1RM. Na comparação dos valores médios de FC, PAS, DP, LA e PSE entre os diferentes tempos de intervalos (um e dois minutos), utilizou-se a análise de variância fatorial 3 x 4 [tempo (repouso, 1ª, 2ª, 3ª séries) x protocolos (um e dois minutos)], de medidas repetidas (within x within). Para determinar as possíveis diferenças estatisticamente significativas da ANOVA, utilizou-se o teste post-hoc Least Significant Difference (LSD). Resultados: A FC, PAS e DP foram significativamente maiores em ambos os exercícios. Os valores da PSE apresentaram-se com diferenças significativas em ambos os exercícios, porém, em momentos distintos. O LAC sangüíneo não apresentou diferenças significativas em nenhum dos exercícios avaliados. Conclusão: Conclui-se que menor intervalo de recuperação entre as séries (um minuto) impôs uma maior sobrecarga cardiovascular no supino horizontal (FC e PAS) e no leg press 45° (FC, PAS e DP). O mesmo comportamento foi observado na PSE em ambos os exercícios, com menor intervalo de recuperação levando a uma maior sensação do esforço realizado. Conclui-se, também, que o LA não se alterou em virtude da manipulação dos intervalos de recuperação entre as séries.
This study has as objective to compare the acute physiologic answers of resisted exercises (RE), realized with different times of recuperation among the series. Methods: Participated of the study 12 youngs (24,6±3,7 years old), without experience in the resisted exercises (RE). In the research’s process, the acute physiologic answer of the cardiac frequency (CF), systolic arterial pression (SAP), Product double(PD),blood lactate(BL) and the subjective perception effort(SPE) were measured in the exercises leg press 45° and horizontal supine. Both the exercises were realized with one and two minutes of recuperation among the series. The people that participated of the exercise did 3 series of 10 repetitions to 60% of 1 maximum repetition. In the comparison of the medium values of CF, SAP, PD, BL, SPE among different times of break (one and two minutes. Was used the analyze of factorial variance 3x4[time (repose 1º, 2º,3º series) x Protocols(one and two minutes)], of repetited measures(within x within).For determine possible differences statistically significatives of the ANOVA, was used the test post –hoc least significant difference(LSD). Results: The CF, SAP, and PD were significantly larger in both exercises. The values of the SPE are showed with significant differences in both exercises, however in distinct moments. The blood lactate didn’t present significant differences in neither of the exercises valued. CONCLUSION: One concludes that lesser interval of recuperation among the series (one minute) imposed a bigger cardiovascular overload in the horizontal supine (CF and SAP) and in leg press 45° (CF,SAP,PD). The same behavior was observed in the SPE in both the exercises, with lesser interval of recuperation leading to a bigger sensation of the carried through effort. One concludes, also, that the LA did not get excited in virtue of the manipulation of the intervals of recuperation among the series.
This study has as objective to compare the acute physiologic answers of resisted exercises (RE), realized with different times of recuperation among the series. Methods: Participated of the study 12 youngs (24,6±3,7 years old), without experience in the resisted exercises (RE). In the research’s process, the acute physiologic answer of the cardiac frequency (CF), systolic arterial pression (SAP), Product double(PD),blood lactate(BL) and the subjective perception effort(SPE) were measured in the exercises leg press 45° and horizontal supine. Both the exercises were realized with one and two minutes of recuperation among the series. The people that participated of the exercise did 3 series of 10 repetitions to 60% of 1 maximum repetition. In the comparison of the medium values of CF, SAP, PD, BL, SPE among different times of break (one and two minutes. Was used the analyze of factorial variance 3x4[time (repose 1º, 2º,3º series) x Protocols(one and two minutes)], of repetited measures(within x within).For determine possible differences statistically significatives of the ANOVA, was used the test post –hoc least significant difference(LSD). Results: The CF, SAP, and PD were significantly larger in both exercises. The values of the SPE are showed with significant differences in both exercises, however in distinct moments. The blood lactate didn’t present significant differences in neither of the exercises valued. CONCLUSION: One concludes that lesser interval of recuperation among the series (one minute) imposed a bigger cardiovascular overload in the horizontal supine (CF and SAP) and in leg press 45° (CF,SAP,PD). The same behavior was observed in the SPE in both the exercises, with lesser interval of recuperation leading to a bigger sensation of the carried through effort. One concludes, also, that the LA did not get excited in virtue of the manipulation of the intervals of recuperation among the series.
Descrição
Dissertação de Mestrado em Avaliação nas Actividades Físicas e Desportivas
Palavras-chave
Exercícios resistidos - -respostas fisiológicas agudas , Frequência cardíaca , Consumo de oxigénio