Heart Rate Variability Science

Heart International 2016; 11(1): e32-e40 DOI: 10.5301/heartint.5000232

Influence diagram of cause of effect factors linked with heart-rate variability (HRV). The direction of the arrows indicates a cause-to-effect link between related factors. While red arrows indicate a deleterious effect and green or blue arrows a beneficial one, purple arrows refer to a link for which the effect can be deleterious or beneficial. Blue arrows are specific to the heart coher-ence state. Red, green and blue arrows correspond to significant effects while grey arrows indicate a link for which statistical significance was not achieved.

Heart Rate Variability with Deep Breathing

Heart rate variability with deep breathing as a clinical test of cardiovagal functionROBERT W. SHIELDS, JR, MDNeuromuscular Center, Neurological Institute, Cleveland Clinic, Cleveland, OHResearch into heart rate variability (HRV) and respiration over the...

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