Vasodilation and Reduction of Systolic Blood Pressure after One Session of High-Intensity Interval Training in Patients With Heart Failure with Preserved Ejection Fraction.
Arq Bras Cardiol
; 111(5): 699-707, 2018 11.
Article
in En, Pt
| MEDLINE
| ID: mdl-30365604
ABSTRACT
BACKGROUND:
Heart failure with preserved ejection fraction (HFpEF) is a multifactorial syndrome characterized by a limited exercising capacity. High-intensity interval training (HIIT) is an emerging strategy for exercise rehabilitation in different settings. In patients with HFpEF, HIIT subacute effects on endothelial function and blood pressure are still unknown.OBJECTIVE:
To evaluate the subacute effect of one HIIT session on endothelial function and blood pressure in patients with HFpEF.METHODS:
Sixteen patients with HFpEF underwent a 36-minute session of HIIT on a treadmill, alternating four minutes of high-intensity intervals with three minutes of active recovery. Brachial artery diameter, flow-mediated dilation, and blood pressure were assessed immediately before and 30 minutes after the HIIT session. In all analyses, p <0.05 was considered statistically significant.RESULTS:
There was an increase in brachial artery diameter (pre-exercise 3.96 ± 0.57 mm; post-exercise 4.33 ± 0.69 mm; p < 0.01) and a decrease in systolic blood pressure (pre-exercise 138 ± 21 mmHg; post-exercise 125 ± 20 mmHg; p < 0.01). Flow-mediated dilation (pre-exercise 5.91 ± 5.20%; post-exercise 3.55 ± 6.59%; p = 0.162) and diastolic blood pressure (pre-exercise 81 ± 11 mmHg; post-exercise 77 ± 8 mmHg; p = 1.000) did not change significantly. There were no adverse events throughout the experiment.CONCLUSIONS:
One single HIIT session promoted an increase in brachial artery diameter and reduction in systolic blood pressure, but it did not change flow-mediated dilation and diastolic blood pressure.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Vasodilation
/
Blood Pressure
/
Endothelium, Vascular
/
High-Intensity Interval Training
/
Heart Failure
Type of study:
Diagnostic_studies
Limits:
Aged
/
Female
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Humans
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Male
/
Middle aged
Language:
En
/
Pt
Journal:
Arq Bras Cardiol
Year:
2018
Document type:
Article