Heart rate variability and the influence of craniosacral therapy on autonomous nervous system regulation in persons with subjective discomforts: a pilot study.

A 2014 quasi-experimental (controlled) study with cross-over design with 31 individuals.  Results suggest: “Both control rest and the intervention gave significant increase of SDNN, but while the increase was +15% (P < 0.05) in the control period, it was +32%...