Combined exercise circuit session acutely attenuates stress-induced
blood pressure reactivity in healthy adults |
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Authors: | Sérgio R Moreira Ricardo M Lima Karina E S Silva Herbert G Sim?es |
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Institution: | 1. College of Physical Education (CEFIS), Universidade Federal do Vale do São Francisco (UNIVASF), Petrolina, PE, Brazil ;2. Graduate Program in Physical Education, Universidade de Brasília (UnB), Brasília, DF, Brazil ;3. Graduate Program in Physical Education, Universidade Estadual de Londrina (UEL), Londrina, PR, Brazil ;4. Graduate Program in Physical Education and Health, Universidade Católica de Brasília (UCB), Brasília, DF, Brazil |
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Abstract: | ObjectiveTo investigate the blood pressure (BP) responses to cardiovascular stress
test after a combined exercise circuit session at moderate intensity. MethodTwenty individuals (10 male/10 fem; 33.4± 6.9 years; 70.2± 15.8
kg; 170.4± 11.5 cm; 22.3± 6.8% body fat) were randomized in a
different days to control session with no exercise or exercise session
consisting of 3 laps of the following circuit: knee extension, bench press,
knee flexion, rowing in the prone position, squats, shoulder press, and 5
min of aerobic exercise at 75-85% of age-predicted maximum heart rate and/or
13 on the Borg Rating of Perceived Exertion scale of 6 to
20]. The sets of resistance exercise consisted of 15 repetitions at
~50% of the estimated 1 repetition maximum test. Systolic blood pressure
(SBP) and diastolic blood pressure (DBP) were measured at rest and during 1h
of recovery in both experimental sessions. After that, blood pressure
reactivity (BPR) was evaluated using the Cold Pressor Test. ResultsDuring 1h of exercise recovery, there was a reduction in SBP (3-6 mmHg) and
DBP (2-5 mmHg) in relation to pre-session rest (p<0.01), while this
reduction was not observed in the control session. A decline in
BPR (4-7 mmHg; p<0.01) was observed 1h post-exercise
session, but not in the control session. Post-exercise reductions in SBP and
DBP were significantly correlated with BPR reductions
(r=0.50-0.45; p<0.05). ConclusionA combined exercise circuit session at moderate intensity promoted subsequent
post-exercise hypotension and acutely attenuated BPR in response
to a cardiovascular stress test. In addition, the post-exercise BP reduction
was correlated with BPR attenuation in healthy adults of both
genders. |
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Keywords: | blood pressure reduction vascular reactivity movement |
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