Cardiovascular Response in Strenght Training Using Diferents Rest Intervals
Abstract
This study aimed to determine the acute effect of different rest intervals between sets on the hemodynamic responses in normotensive subjects submitted to a strength training session. Ten men (22 ± 3.14 years; 1.77 ± 0.09 m; 73.12 ± 5.43 kg) experienced at least two years in strength training. Each subject took a leg extension in two different sessions at rest intervals of 1 and 3 minutes. They performed 4 sets of 80% of 10RM in each session. The heart rate increased during the sets progressed, though there was no difference significantly between the two protocols for this variable. Systolic blood pressure increased from rest to the first set in the two protocols, and from there, there was a tendency to stabilize the same. There were not significant differences between to two protocols. In both protocols the rate-pressure product (RPP) increased from rest to the first set, but there were significant difference between two protocols only to the fourth set. The results show that there was no significant difference between the protocols for the variables studied, except for the fourth set of RPP, which showed higher in group that had 1 minute of rest interval.
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