Abstract
Abstract – Acute cardiovascular responses to different high-velocity resistance exercise proto-cols were compared in untrained older women. Twelve apparently healthy volunteers (62.6 ± 2.9 years) performed three different protocols on the bench press (BP) and leg press (LP). All protocols consisted of three sets of 10 repetitions performed with a 10RM load and 2 min of rest between sets. The continuous protocol (CP) consisted of 10 repetitions with no pause between repetitions. The discontinuous protocols were performed with a pause of five (DP5) or 15 (DP15) seconds between the fifth and sixth repetition. Heart rate (HR), systolic blood pressure (SBP), and rate pressure product (RPP) were assessed at baseline and at the end of all exercise sets. Factorial ANOVA was used to compare the cardiovascular response among different protocols. Compared to baseline, HR, SBP and RPP were, respectively, 22.3%, 23.2% and 51.2% (p < 0.05) higher for BP exercise, and 41.7%, 43.0% and 102.9% (p < 0.05) higher for LP exercise after the third set in all protocols. For BP exercise, HR and RPP were 5.6% and 8.2% (p < 0.05) lower in DP5 and DP15, respectively, compared to CP. For LP exercise, HR, SBP and RPP were, respectively, 5.2%, 8.0% and 14.8% lower in DP5 compared to CP. In conclusion, discontinuous high-velocity resistance exercise seems to have a lower cardiovascular demand than continuous resistance exercise in older women.
Highlights
Acute cardiovascular responses to different high-velocity resistance exercise protocols were compared in untrained older women
Isto se deve em virtude dos significativos aumentos na frequência cardíaca (FC) e pressão arterial (PA)
Arterial blood pressure response to heavy resistance exercise
Summary
Rodrigo Pereira da Silva 1 Jefferson da Silva Novaes 2 Ricardo Jacó de Oliveira 3. Resumo – As respostas cardiovasculares agudas foram comparadas entre três diferentes protocolos de treinamento resistido de alta velocidade de contração muscular em mulheres idosas destreinadas. Já Coelho et al.[10], aplicando alta velocidade de contração muscular, três segundos para cada repetição, reportaram um aumento agudo significativo na FC, no protocolo contínuo de 12 repetições máximas (12-RM), quando comparado com o protocolo descontínuo (2 x 6 repetições), com 15 segundos de pausa entre a sexta e a sétima repetição, em uma amostra de adultos jovens. Dessa forma, o presente estudo teve por objetivo comparar as respostas cardiovasculares agudas da FC, PA e DP entre três diferentes protocolos de treinamento resistido (contínuo vs descontínuos), realizado com alta velocidade de contração muscular, em mulheres idosas destreinadas
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