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Motriz: Revista de Educação Física

versão On-line ISSN 1980-6574

Resumo

FERREIRA JUNIOR, Adalberto et al. Effect of walk training combined with blood flow restriction on resting heart rate variability and resting blood pressure in middle-aged men. Motriz: rev. educ. fis. [online]. 2019, vol.25, n.2, e101945.  Epub 22-Ago-2019. ISSN 1980-6574.  https://doi.org/10.1590/s1980-6574201900020005.

Aim:

To investigate the effects of low-intensity walk training with and without blood flow restriction (BRF) on resting heart rate variability (HRV) and blood pressure (BP) in middle-aged men.

Methods:

Twenty-one men were randomly assigned into the walk training group with (BRF-W; n = 11) and without (NOR-W; n = 10) BFR. The resting HRV and blood pressure were assessed pre- and post-6 weeks of the intervention [3 times/week, 5 sets of 3-min walking (6 km.h-1) with 1-min of rest, totalizing 18 sessions of training]. The BFR-W group received the occlusive stimulus before of training sessions though of a standard sphygmomanometer and performed the training sessions with the vascular occlusion (80-100 mmHg) in both the legs.

Results:

Only BRF-W group improved HRV on time domain indices (SDNN and RMSSD; p < 0.05) after training but it was not found differences on frequency domain indices. In addition, systolic blood pressure (SBP) improved after training (PRE: 128.5 ± 5.9 vs POST: 119.1 ± 8.6 mmHg; Cohen’s d = -1.30; p < 0.01) only in BFR-W group. There was not a significant difference on diastolic blood pressure (DBP) after training, however, effect size was moderate for BFR-W (Cohen’s d = -0.56; p > 0.05).

Conclusion:

Our results showed that walking training with blood flow restriction can improve health cardiovascular parameters in middle-aged men.

Palavras-chave : cardiac autonomic activity; blood pressure; vascular occlusion training; healthy aging.

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