Key result
Resistance training does not significantly change cardiovascular autonomic modulation, as measured by heart rate variability parameters, in healthy and unhealthy individuals.
Why the study?
Does resistance training change cardiovascular autonomic modulation measured by heart rate variability in humans?
Meta-Analysis
Does resistance training change cardiovascular autonomic modulation measured by heart rate variability in humans?
Resistance training does not significantly alter cardiovascular autonomic modulation as measured by heart rate variability, suggesting it can be prescribed for health purposes without negatively affecting autonomic balance.
Supports safe resistance training prescription without autonomic concerns; confirms neutral HRV effects across healthy and unhealthy populations.
Background. Studies investigating resistance training (RT) effects on cardiovascular autonomic modulation (CAM) have shown controversial results. Objective. To address the effect of RT on CAM in humans, in healthy and unhealthy individuals by analysing the findings of previous studies. Methods. An updated search (MEDLINE on January 18, 2016) found 19 studies testing the basal heart rate variability (HRV) before and after a RT intervention in humans. Results. Although, some individual studies showed significant effects from RT on HRV in both directions, the overall effect (standard difference in means) was not significantly on all HRV parameters analysed (time and frequency domains). No RT subgroup (samples and protocols features) presented significant effect on sympathovagal balance, limiting the comprehension about these variations. Conclusion. We conclude RT does not change humans CAM.
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Sardeli et al. (2018) conducted a meta-analysis in Healthy and unhealthy individuals. Resistance training vs. Control group or pre-intervention baseline was evaluated on Heart rate variability (HRV) parameters (time and frequency domains). Resistance training does not significantly change cardiovascular autonomic modulation, as measured by heart rate variability parameters, in healthy and unhealthy individuals.
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