Combined exercise circuit session acutely attenuates stress-induced blood pressure reactivity in healthy adults

Sérgio R Moreira, Ricardo M Lima, Karina E S Silva, Herbert G Simões, Sérgio R Moreira, Ricardo M Lima, Karina E S Silva, Herbert G Simões

Abstract

Objective: To investigate the blood pressure (BP) responses to cardiovascular stress test after a combined exercise circuit session at moderate intensity.

Method: Twenty 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.

Results: During 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).

Conclusion: A 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.

Trial registration: ClinicalTrials.gov NCT01935895.

Figures

Figure 1
Figure 1
Range (mmHg) of systolic blood pressure (Δ SBP), diastolic blood pressure (Δ DBP), mean arterial pressure (Δ MAP), and heart rate (Δ HR) in the post-exercise session recovery moments (Rec15'-Rec60'). *p

Figure 2

Range (Δ mmHg) of systolic…

Figure 2

Range (Δ mmHg) of systolic blood pressure reactivity (SBP R ) and diastolic…

Figure 2
Range (Δ mmHg) of systolic blood pressure reactivity (SBPR) and diastolic blood pressure reactivity (DBPR) during (Peak30" and Peak60") and after (After2') the Cold Pressor Test in the pre-exercise session (Pre-Session) and post-exercise session (Post-Session) moments. *p<0.01 compared to exercise session.

Figure 3

Relationship between the variation in…

Figure 3

Relationship between the variation in blood pressure reactivity during (Peak60") the Cold Pressor…

Figure 3
Relationship between the variation in blood pressure reactivity during (Peak60") the Cold Pressor Test post-session (Post-S) and the variation in systolic blood pressure (SBP) and diastolic blood pressure (DBP) after 1 hour of recovery. p
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We are grateful to Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil (proc. 474328/2010-4) for their financial support. We also wish to extend our acknowledgments to Salvapé Produtos Ortopédicos Ltda. for donating the digital BP equipment.
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Figure 2
Figure 2
Range (Δ mmHg) of systolic blood pressure reactivity (SBPR) and diastolic blood pressure reactivity (DBPR) during (Peak30" and Peak60") and after (After2') the Cold Pressor Test in the pre-exercise session (Pre-Session) and post-exercise session (Post-Session) moments. *p<0.01 compared to exercise session.
Figure 3
Figure 3
Relationship between the variation in blood pressure reactivity during (Peak60") the Cold Pressor Test post-session (Post-S) and the variation in systolic blood pressure (SBP) and diastolic blood pressure (DBP) after 1 hour of recovery. p

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