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. 2014 Nov 12:43:79-85.
doi: 10.2478/hukin-2014-0092. eCollection 2014 Sep 29.

The acute effect of resistance exercise with blood flow restriction with hemodynamic variables on hypertensive subjects

Joamira P Araújo  1 , Eliney D Silva  2 , Julio C G Silva  3 , Thiago S P Souza  4 , Eloíse O Lima  3 , Ialuska Guerra  2 , Maria S C Sousa  4
Affiliations

The acute effect of resistance exercise with blood flow restriction with hemodynamic variables on hypertensive subjects

Joamira P Araújo et al. J Hum Kinet. .

Abstract

The purpose of this study was to analyze systolic blood pressure (SBP), diastolic blood pressure (DBP) and the heart rate (HR) before, during and after training at moderate intensity (MI, 50%-1RM) and at low intensity with blood flow restriction (LIBFR). In a randomized controlled trial study, 14 subjects (average age 45±9,9 years) performed one of the exercise protocols during two separate visits to the laboratory. SBP, DBP and HR measurements were collected prior to the start of the set and 15, 30, 45 and 60 minutes after knee extension exercises. Repeated measures of analysis of variance (ANOVA) were used to identify significant variables (2 × 5; group × time). The results demonstrated a significant reduction in SBP in the LIBFR group. These results provide evidence that strength training performed acutely alters hemodynamic variables. However, training with blood flow restriction is more efficient in reducing blood pressure in hypertensive individuals than training with moderate intensity.

Keywords: blood pressure; heart rate; hypertension; strength training; vascular occlusion.

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Figures

Figure 1
Figure 1
Systolic blood pressure (mm/Hg) measurements pre-exercise and 15, 30, 45 and 60 minutes post-exercise. Values are expressed as the mean ± SE LIBFR: Low-intensity with blood flow restriction; MI: moderated intensity (*) p<0,05 a significant difference for pre, 15, 30, 45 and 60 minutes post-exercise for the LIBFR group.
Figure 2
Figure 2
Diastolic blood pressure (mm/Hg) measurements pre-exercise and 15, 30, 45 and 60 minutes post-exercise. Values expressed as the mean ± SE LIBFR: Low-intensity with blood flow restriction; MI: moderated intensity.
Figure 3
Figure 3
Heart rate (bpm) measured pre-exercise and 15, 30, 45 and 60 minutes post exercise Values expressed as the mean ± SE. LI-BFR: Low-intensity with blood flow restriction; MI: moderated intensity (*) p<0,05 a significant difference for 30 and 60 minutes post-exercise for moderate intensity.
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